{ "instance": { "fxnc20211231_10k.htm": { "axisCustom": 0, "axisStandard": 40, "contextCount": 396, "dts": { "calculationLink": { "local": [ "fxnc-20211231_cal.xml" ] }, "definitionLink": { "local": [ "fxnc-20211231_def.xml" ] }, "inline": { "local": [ "fxnc20211231_10k.htm" ] }, "labelLink": { "local": [ "fxnc-20211231_lab.xml" ] }, "presentationLink": { "local": [ "fxnc-20211231_pre.xml" ] }, "schema": { "local": [ "fxnc-20211231.xsd" ], "remote": [ "http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd", "http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd", "http://www.xbrl.org/2003/xl-2003-12-31.xsd", "http://www.xbrl.org/2003/xlink-2003-12-31.xsd", "http://www.xbrl.org/2005/xbrldt-2005.xsd", "http://www.xbrl.org/2006/ref-2006-02-27.xsd", "http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd", "http://www.xbrl.org/lrr/role/net-2009-12-16.xsd", "http://www.xbrl.org/lrr/role/reference-2009-12-16.xsd", "https://www.xbrl.org/2020/extensible-enumerations-2.0.xsd", "https://www.xbrl.org/dtr/type/2020-01-21/types.xsd", "https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd", "https://xbrl.fasb.org/srt/2021/elts/srt-roles-2021-01-31.xsd", "https://xbrl.fasb.org/srt/2021/elts/srt-types-2021-01-31.xsd", "https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd", "https://xbrl.fasb.org/us-gaap/2021/elts/us-roles-2021-01-31.xsd", "https://xbrl.fasb.org/us-gaap/2021/elts/us-types-2021-01-31.xsd", "https://xbrl.sec.gov/country/2021/country-2021.xsd", "https://xbrl.sec.gov/currency/2021/currency-2021.xsd", "https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd", "https://xbrl.sec.gov/exch/2021/exch-2021.xsd", "https://xbrl.sec.gov/naics/2021/naics-2021.xsd", "https://xbrl.sec.gov/sic/2021/sic-2021.xsd", "https://xbrl.sec.gov/stpr/2021/stpr-2021.xsd" ] } }, "elementCount": 830, "entityCount": 1, "hidden": { "http://fasb.org/us-gaap/2021-01-31": 74, "http://www.fbvirginia.com/20211231": 12, "http://xbrl.sec.gov/dei/2021q4": 6, "total": 92 }, "keyCustom": 75, "keyStandard": 484, "memberCustom": 45, "memberStandard": 56, "nsprefix": "fxnc", "nsuri": "http://www.fbvirginia.com/20211231", "report": { "R1": { "firstAnchor": { "ancestors": [ "b", "td", "tr", "tbody", "table", "div", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "dei:DocumentType", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "true", "longName": "000 - Document - Document And Entity Information", "role": "http://www.fbvirginia.com/20211231/role/statement-document-and-entity-information", "shortName": "Document And Entity Information", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "b", "td", "tr", "tbody", "table", "div", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "dei:DocumentType", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R10": { "firstAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "009 - Disclosure - Note 1 - Nature of Banking Activities and Significant Accounting Policies", "role": "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies", "shortName": "Note 1 - Nature of Banking Activities and Significant Accounting Policies", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R100": { "firstAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "div", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2020-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:StockholdersEquity", "reportCount": 1, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "099 - Disclosure - Note 21 - Accumulated Other Comprehensive Income (Loss) - Changes in Each Component of Accumulated Other Comprehensive Income (Loss) (Details)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-changes-in-each-component-of-accumulated-other-comprehensive-income-loss-details", "shortName": "Note 21 - Accumulated Other Comprehensive Income (Loss) - Changes in Each Component of Accumulated Other Comprehensive Income (Loss) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock", "us-gaap:ComprehensiveIncomeNoteTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2019-12-31_StatementEquityComponentsAxis-AccumulatedNetUnrealizedInvestmentGainLossMember", "decimals": "-3", "lang": null, "name": "us-gaap:StockholdersEquity", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R101": { "firstAnchor": null, "groupType": "disclosure", "isDefault": "false", "longName": "100 - Disclosure - Note 21 - Accumulated Other Comprehensive Income (Loss) - Changes in Each Component of Accumulated Other Comprehensive Income (Loss) (Details) (Parentheticals)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-changes-in-each-component-of-accumulated-other-comprehensive-income-loss-details-parentheticals", "shortName": "Note 21 - Accumulated Other Comprehensive Income (Loss) - Changes in Each Component of Accumulated Other Comprehensive Income (Loss) (Details) (Parentheticals)", "subGroupType": "parenthetical", "uniqueAnchor": null }, "R102": { "firstAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "div", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:IncomeTaxExpenseBenefit", "reportCount": 1, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "101 - Disclosure - Note 21 - Accumulated Other Comprehensive Income (Loss) - Reclassifications from Accumulated Other Comprehensive Loss (Details)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-reclassifications-from-accumulated-other-comprehensive-loss-details", "shortName": "Note 21 - Accumulated Other Comprehensive Income (Loss) - Reclassifications from Accumulated Other Comprehensive Loss (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock", "us-gaap:ComprehensiveIncomeNoteTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis-ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember", "decimals": "-3", "lang": null, "name": "us-gaap:DebtAndEquitySecuritiesGainLoss", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R103": { "firstAnchor": { "ancestors": [ "p", "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-10-13_2021-10-13_AwardTypeAxis-RestrictedStockUnitsRSUMember", "decimals": "INF", "first": true, "lang": null, "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod", "reportCount": 1, "unitRef": "Share", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "102 - Disclosure - Note 22 - Stock Compensation Plans (Details Textual)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-details-textual", "shortName": "Note 22 - Stock Compensation Plans (Details Textual)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "p", "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31_AwardTypeAxis-RestrictedStockUnitsRSUMember", "decimals": "-3", "lang": null, "name": "us-gaap:AllocatedShareBasedCompensationExpense", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R104": { "firstAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock", "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2020-12-31_AwardTypeAxis-RestrictedStockUnitsRSUMember", "decimals": "INF", "first": true, "lang": null, "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber", "reportCount": 1, "unique": true, "unitRef": "Share", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "103 - Disclosure - Note 22 - Stock Compensation Plans - Summary of Restricted Stock Unit Activity (Details)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-summary-of-restricted-stock-unit-activity-details", "shortName": "Note 22 - Stock Compensation Plans - Summary of Restricted Stock Unit Activity (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock", "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2020-12-31_AwardTypeAxis-RestrictedStockUnitsRSUMember", "decimals": "INF", "first": true, "lang": null, "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber", "reportCount": 1, "unique": true, "unitRef": "Share", "xsiNil": "false" } }, "R105": { "firstAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:DisaggregationOfRevenueTableTextBlock", "us-gaap:RevenueFromContractWithCustomerTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax", "reportCount": 1, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "104 - Disclosure - Note 23 - Revenue Recognition - Disaggregation of Revenue (Details)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-23-revenue-recognition-disaggregation-of-revenue-details", "shortName": "Note 23 - Revenue Recognition - Disaggregation of Revenue (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:DisaggregationOfRevenueTableTextBlock", "us-gaap:RevenueFromContractWithCustomerTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": "-3", "lang": null, "name": "fxnc:NoninterestIncomeExcludingRevenueFromContactWithCustomer", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R106": { "firstAnchor": { "ancestors": [ "p", "us-gaap:DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2020-04-21_DerivativeInstrumentRiskAxis-InterestRateSwapOneMember", "decimals": "-6", "first": true, "lang": null, "name": "us-gaap:DerivativeNotionalAmount", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "105 - Disclosure - Note 24 - Derivative Financial Instruments (Details Textual)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-details-textual", "shortName": "Note 24 - Derivative Financial Instruments (Details Textual)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "p", "us-gaap:DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2020-04-21_DerivativeInstrumentRiskAxis-InterestRateSwapOneMember", "decimals": "-6", "first": true, "lang": null, "name": "us-gaap:DerivativeNotionalAmount", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R107": { "firstAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:ScheduleOfDerivativeInstrumentsTextBlock", "us-gaap:DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31_DerivativeInstrumentRiskAxis-InterestRateSwapMember_HedgingDesignationAxis-DesignatedAsHedgingInstrumentMember", "decimals": "-6", "first": true, "lang": null, "name": "us-gaap:DerivativeNotionalAmount", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "106 - Disclosure - Note 24 - Derivative Financial Instruments - Derivative Instruments Components (Details)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-derivative-instruments-components-details", "shortName": "Note 24 - Derivative Financial Instruments - Derivative Instruments Components (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:ScheduleOfDerivativeInstrumentsTextBlock", "us-gaap:DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31_DerivativeInstrumentRiskAxis-InterestRateSwapMember_HedgingDesignationAxis-DesignatedAsHedgingInstrumentMember", "decimals": "-6", "first": true, "lang": null, "name": "us-gaap:DerivativeNotionalAmount", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R108": { "firstAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:ScheduleOfBusinessAcquisitionsByAcquisitionTextBlock", "us-gaap:BusinessCombinationDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:BusinessCombinationConsiderationTransferred1", "reportCount": 1, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "107 - Disclosure - Note 25 - Acquisitions (Details Textual)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-details-textual", "shortName": "Note 25 - Acquisitions (Details Textual)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "p", "us-gaap:BusinessCombinationDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-06-30_LegalEntityAxis-TheBankOfFincastleMember", "decimals": "-5", "lang": null, "name": "us-gaap:Assets", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R109": { "firstAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:ScheduleOfBusinessAcquisitionsByAcquisitionTextBlock", "us-gaap:BusinessCombinationDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:PaymentsToAcquireBusinessesGross", "reportCount": 1, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "108 - Disclosure - Note 25 - Acquisitions - Consideration Paid and the Assets Acquired and Liabilities Assumed (Details)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details", "shortName": "Note 25 - Acquisitions - Consideration Paid and the Assets Acquired and Liabilities Assumed (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:ScheduleOfBusinessAcquisitionsByAcquisitionTextBlock", "us-gaap:BusinessCombinationDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": "-3", "lang": null, "name": "us-gaap:BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R11": { "firstAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "010 - Disclosure - Note 2 - Securities", "role": "http://www.fbvirginia.com/20211231/role/statement-note-2-securities", "shortName": "Note 2 - Securities", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R110": { "firstAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:BusinessAcquisitionProFormaInformationTextBlock", "us-gaap:BusinessCombinationDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:BusinessAcquisitionsProFormaRevenue", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "109 - Disclosure - Note 25 - Acquisitions - Unaudited Pro Forma Amounts (Details)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-unaudited-pro-forma-amounts-details", "shortName": "Note 25 - Acquisitions - Unaudited Pro Forma Amounts (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:BusinessAcquisitionProFormaInformationTextBlock", "us-gaap:BusinessCombinationDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:BusinessAcquisitionsProFormaRevenue", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R111": { "firstAnchor": { "ancestors": [ "p", "us-gaap:SubordinatedBorrowingsDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2015-10-30_DebtInstrumentAxis-SubordinatedLoanAgreementNoteMember", "decimals": "-6", "first": true, "lang": null, "name": "us-gaap:DebtInstrumentFaceAmount", "reportCount": 1, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "110 - Disclosure - Note 26 - Subsequent Events (Details Textual)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-26-subsequent-events-details-textual", "shortName": "Note 26 - Subsequent Events (Details Textual)", "subGroupType": "details", "uniqueAnchor": null }, "R112": { "firstAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "div", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:CashAndDueFromBanks", "reportCount": 1, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "111 - Disclosure - Note 27 - Parent Company Only Financial Statements - Balance Sheet (Details)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-balance-sheet-details", "shortName": "Note 27 - Parent Company Only Financial Statements - Balance Sheet (Details)", "subGroupType": "parenthetical", "uniqueAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "srt:ScheduleOfCondensedBalanceSheetTableTextBlock", "us-gaap:CondensedFinancialInformationOfParentCompanyOnlyDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31_ConsolidatedEntitiesAxis-ParentCompanyMember", "decimals": "-3", "lang": null, "name": "us-gaap:CashAndDueFromBanks", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R113": { "firstAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "div", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:InterestExpense", "reportCount": 1, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "112 - Disclosure - Note 27 - Parent Company Only Financial Statements - Statements of Income (Details)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-income-details", "shortName": "Note 27 - Parent Company Only Financial Statements - Statements of Income (Details)", "subGroupType": "parenthetical", "uniqueAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "srt:ScheduleOfCondensedIncomeStatementTableTextBlock", "us-gaap:CondensedFinancialInformationOfParentCompanyOnlyDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31_ConsolidatedEntitiesAxis-ParentCompanyMember", "decimals": "-6", "lang": null, "name": "us-gaap:InvestmentIncomeDividend", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R114": { "firstAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "div", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:NetIncomeLoss", "reportCount": 1, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "113 - Disclosure - Note 27 - Parent Company Only Financial Statements - Statements of Cash Flows (Details)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-cash-flows-details", "shortName": "Note 27 - Parent Company Only Financial Statements - Statements of Cash Flows (Details)", "subGroupType": "parenthetical", "uniqueAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "srt:ScheduleOfCondensedCashFlowStatementTableTextBlock", "us-gaap:CondensedFinancialInformationOfParentCompanyOnlyDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31_ConsolidatedEntitiesAxis-ParentCompanyMember", "decimals": "-3", "lang": null, "name": "us-gaap:IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R12": { "firstAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:LoansNotesTradeAndOtherReceivablesExcludingAllowanceForCreditLossesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "011 - Disclosure - Note 3 - Loans", "role": "http://www.fbvirginia.com/20211231/role/statement-note-3-loans", "shortName": "Note 3 - Loans", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:LoansNotesTradeAndOtherReceivablesExcludingAllowanceForCreditLossesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R13": { "firstAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:AllowanceForCreditLossesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "012 - Disclosure - Note 4 - Allowance for Loan Losses", "role": "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses", "shortName": "Note 4 - Allowance for Loan Losses", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:AllowanceForCreditLossesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R14": { "firstAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:RealEstateOwnedTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "013 - Disclosure - Note 5 - Other Real Estate Owned", "role": "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned", "shortName": "Note 5 - Other Real Estate Owned", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:RealEstateOwnedTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R15": { "firstAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:PropertyPlantAndEquipmentDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "014 - Disclosure - Note 6 - Premises and Equipment", "role": "http://www.fbvirginia.com/20211231/role/statement-note-6-premises-and-equipment", "shortName": "Note 6 - Premises and Equipment", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:PropertyPlantAndEquipmentDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R16": { "firstAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DepositLiabilitiesDisclosuresTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "015 - Disclosure - Note 7 - Deposits", "role": "http://www.fbvirginia.com/20211231/role/statement-note-7-deposits", "shortName": "Note 7 - Deposits", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DepositLiabilitiesDisclosuresTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R17": { "firstAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "fxnc:OtherBorrowingsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "016 - Disclosure - Note 8 - Other Borrowings", "role": "http://www.fbvirginia.com/20211231/role/statement-note-8-other-borrowings", "shortName": "Note 8 - Other Borrowings", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "fxnc:OtherBorrowingsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R18": { "firstAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SubordinatedBorrowingsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "017 - Disclosure - Note 9 - Subordinated Debt", "role": "http://www.fbvirginia.com/20211231/role/statement-note-9-subordinated-debt-", "shortName": "Note 9 - Subordinated Debt", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SubordinatedBorrowingsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R19": { "firstAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DebtDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "018 - Disclosure - Note 10 - Junior Subordinated Debt", "role": "http://www.fbvirginia.com/20211231/role/statement-note-10-junior-subordinated-debt", "shortName": "Note 10 - Junior Subordinated Debt", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DebtDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R2": { "firstAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "div", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:CashAndDueFromBanks", "reportCount": 1, "unitRef": "USD", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "001 - Statement - Consolidated Balance Sheets", "role": "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets", "shortName": "Consolidated Balance Sheets", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "div", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "-3", "lang": null, "name": "us-gaap:InterestBearingDepositsInBanks", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R20": { "firstAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:IncomeTaxDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "019 - Disclosure - Note 11 - Income Taxes", "role": "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes", "shortName": "Note 11 - Income Taxes", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:IncomeTaxDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R21": { "firstAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "fxnc:FundsRestrictionsAndReserveBalanceTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "020 - Disclosure - Note 12 - Funds Restrictions and Reserve Balance", "role": "http://www.fbvirginia.com/20211231/role/statement-note-12-funds-restrictions-and-reserve-balance", "shortName": "Note 12 - Funds Restrictions and Reserve Balance", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "fxnc:FundsRestrictionsAndReserveBalanceTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R22": { "firstAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:PensionAndOtherPostretirementBenefitsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "021 - Disclosure - Note 13 - Benefit Plans", "role": "http://www.fbvirginia.com/20211231/role/statement-note-13-benefit-plans", "shortName": "Note 13 - Benefit Plans", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:PensionAndOtherPostretirementBenefitsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R23": { "firstAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:EarningsPerShareTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "022 - Disclosure - Note 14 - Earnings Per Common Share", "role": "http://www.fbvirginia.com/20211231/role/statement-note-14-earnings-per-common-share", "shortName": "Note 14 - Earnings Per Common Share", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:EarningsPerShareTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R24": { "firstAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "023 - Disclosure - Note 15 - Commitments and Unfunded Credits", "role": "http://www.fbvirginia.com/20211231/role/statement-note-15-commitments-and-unfunded-credits", "shortName": "Note 15 - Commitments and Unfunded Credits", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R25": { "firstAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:RelatedPartyTransactionsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "024 - Disclosure - Note 16 - Transactions with Related Parties", "role": "http://www.fbvirginia.com/20211231/role/statement-note-16-transactions-with-related-parties", "shortName": "Note 16 - Transactions with Related Parties", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:RelatedPartyTransactionsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R26": { "firstAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:LesseeOperatingLeasesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "025 - Disclosure - Note 17 - Lease Commitments", "role": "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments", "shortName": "Note 17 - Lease Commitments", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:LesseeOperatingLeasesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R27": { "firstAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "fxnc:DividendReinvestmentPlanTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "026 - Disclosure - Note 18 - Dividend Reinvestment Plan", "role": "http://www.fbvirginia.com/20211231/role/statement-note-18-dividend-reinvestment-plan", "shortName": "Note 18 - Dividend Reinvestment Plan", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "fxnc:DividendReinvestmentPlanTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R28": { "firstAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:FairValueDisclosuresTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "027 - Disclosure - Note 19 - Fair Value Measurements", "role": "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements", "shortName": "Note 19 - Fair Value Measurements", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:FairValueDisclosuresTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R29": { "firstAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:RegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "028 - Disclosure - Note 20 - Regulatory Matters", "role": "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters", "shortName": "Note 20 - Regulatory Matters", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:RegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R3": { "firstAnchor": null, "groupType": "statement", "isDefault": "false", "longName": "002 - Statement - Consolidated Balance Sheets (Parentheticals)", "role": "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets-parentheticals", "shortName": "Consolidated Balance Sheets (Parentheticals)", "subGroupType": "parenthetical", "uniqueAnchor": null }, "R30": { "firstAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ComprehensiveIncomeNoteTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "029 - Disclosure - Note 21 - Accumulated Other Comprehensive Income (Loss)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss", "shortName": "Note 21 - Accumulated Other Comprehensive Income (Loss)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ComprehensiveIncomeNoteTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R31": { "firstAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "030 - Disclosure - Note 22 - Stock Compensation Plans", "role": "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans", "shortName": "Note 22 - Stock Compensation Plans", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R32": { "firstAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:RevenueFromContractWithCustomerTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "031 - Disclosure - Note 23 - Revenue Recognition", "role": "http://www.fbvirginia.com/20211231/role/statement-note-23-revenue-recognition", "shortName": "Note 23 - Revenue Recognition", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:RevenueFromContractWithCustomerTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R33": { "firstAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "032 - Disclosure - Note 24 - Derivative Financial Instruments", "role": "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-", "shortName": "Note 24 - Derivative Financial Instruments", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R34": { "firstAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:BusinessCombinationDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "033 - Disclosure - Note 25 - Acquisitions", "role": "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions", "shortName": "Note 25 - Acquisitions", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:BusinessCombinationDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R35": { "firstAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SubsequentEventsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "034 - Disclosure - Note 26 - Subsequent Events", "role": "http://www.fbvirginia.com/20211231/role/statement-note-26-subsequent-events-", "shortName": "Note 26 - Subsequent Events", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SubsequentEventsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R36": { "firstAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:CondensedFinancialInformationOfParentCompanyOnlyDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "035 - Disclosure - Note 27 - Parent Company Only Financial Statements", "role": "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements", "shortName": "Note 27 - Parent Company Only Financial Statements", "subGroupType": "parenthetical", "uniqueAnchor": { "ancestors": [ "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:CondensedFinancialInformationOfParentCompanyOnlyDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R37": { "firstAnchor": { "ancestors": [ "us-gaap:OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:BasisOfAccountingPolicyPolicyTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "036 - Disclosure - Significant Accounting Policies (Policies)", "role": "http://www.fbvirginia.com/20211231/role/statement-significant-accounting-policies-policies", "shortName": "Significant Accounting Policies (Policies)", "subGroupType": "policies", "uniqueAnchor": { "ancestors": [ "us-gaap:OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:BasisOfAccountingPolicyPolicyTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R38": { "firstAnchor": { "ancestors": [ "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "fxnc:ScheduleOfAvailableforsaleAndHeldtomaturityReconciliationTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "037 - Disclosure - Note 2 - Securities (Tables)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-tables", "shortName": "Note 2 - Securities (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "fxnc:ScheduleOfAvailableforsaleAndHeldtomaturityReconciliationTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R39": { "firstAnchor": { "ancestors": [ "us-gaap:LoansNotesTradeAndOtherReceivablesExcludingAllowanceForCreditLossesTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "038 - Disclosure - Note 3 - Loans (Tables)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-tables", "shortName": "Note 3 - Loans (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "us-gaap:LoansNotesTradeAndOtherReceivablesExcludingAllowanceForCreditLossesTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R4": { "firstAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "div", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:InterestAndFeeIncomeLoansAndLeases", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "003 - Statement - Consolidated Statements of Income", "role": "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income", "shortName": "Consolidated Statements of Income", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "div", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:InterestAndFeeIncomeLoansAndLeases", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R40": { "firstAnchor": { "ancestors": [ "us-gaap:AllowanceForCreditLossesTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "039 - Disclosure - Note 4 - Allowance for Loan Losses (Tables)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-tables", "shortName": "Note 4 - Allowance for Loan Losses (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "us-gaap:AllowanceForCreditLossesTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R41": { "firstAnchor": { "ancestors": [ "us-gaap:RealEstateOwnedTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:OtherRealEstateRollForwardTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "040 - Disclosure - Note 5 - Other Real Estate Owned (Tables)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned-tables", "shortName": "Note 5 - Other Real Estate Owned (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "us-gaap:RealEstateOwnedTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:OtherRealEstateRollForwardTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R42": { "firstAnchor": { "ancestors": [ "us-gaap:PropertyPlantAndEquipmentDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:PropertyPlantAndEquipmentTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "041 - Disclosure - Note 6 - Premises and Equipment (Tables)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-6-premises-and-equipment-tables", "shortName": "Note 6 - Premises and Equipment (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "us-gaap:PropertyPlantAndEquipmentDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:PropertyPlantAndEquipmentTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R43": { "firstAnchor": { "ancestors": [ "us-gaap:DepositLiabilitiesDisclosuresTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:TimeDepositMaturitiesTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "042 - Disclosure - Note 7 - Deposits (Tables)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-7-deposits-tables", "shortName": "Note 7 - Deposits (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "us-gaap:DepositLiabilitiesDisclosuresTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:TimeDepositMaturitiesTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R44": { "firstAnchor": { "ancestors": [ "us-gaap:IncomeTaxDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "043 - Disclosure - Note 11 - Income Taxes (Tables)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-tables", "shortName": "Note 11 - Income Taxes (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "us-gaap:IncomeTaxDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R45": { "firstAnchor": { "ancestors": [ "us-gaap:EarningsPerShareTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "044 - Disclosure - Note 14 - Earnings Per Common Share (Tables)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-14-earnings-per-common-share-tables", "shortName": "Note 14 - Earnings Per Common Share (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "us-gaap:EarningsPerShareTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R46": { "firstAnchor": { "ancestors": [ "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfFairValueOffBalanceSheetRisksTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "045 - Disclosure - Note 15 - Commitments and Unfunded Credits (Tables)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-15-commitments-and-unfunded-credits-tables", "shortName": "Note 15 - Commitments and Unfunded Credits (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfFairValueOffBalanceSheetRisksTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R47": { "firstAnchor": { "ancestors": [ "us-gaap:LesseeOperatingLeasesTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "fxnc:AssetsAndLiabilitiesLesseeTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "046 - Disclosure - Note 17 - Lease Commitments (Tables)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-tables", "shortName": "Note 17 - Lease Commitments (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "us-gaap:LesseeOperatingLeasesTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "fxnc:AssetsAndLiabilitiesLesseeTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R48": { "firstAnchor": { "ancestors": [ "us-gaap:FairValueDisclosuresTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:FairValueAssetsMeasuredOnRecurringBasisTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "047 - Disclosure - Note 19 - Fair Value Measurements (Tables)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-tables", "shortName": "Note 19 - Fair Value Measurements (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "us-gaap:FairValueDisclosuresTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:FairValueAssetsMeasuredOnRecurringBasisTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R49": { "firstAnchor": { "ancestors": [ "us-gaap:RegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "048 - Disclosure - Note 20 - Regulatory Matters (Tables)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters-tables", "shortName": "Note 20 - Regulatory Matters (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "us-gaap:RegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R5": { "firstAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "div", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:NetIncomeLoss", "reportCount": 1, "unitRef": "USD", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "004 - Statement - Consolidated Statements of Comprehensive Income", "role": "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-comprehensive-income", "shortName": "Consolidated Statements of Comprehensive Income", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "div", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": "-3", "lang": null, "name": "us-gaap:OtherComprehensiveIncomeLossTransfersFromHeldToMaturityToAvailableForSaleSecuritiesNetOfTax", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R50": { "firstAnchor": { "ancestors": [ "us-gaap:ComprehensiveIncomeNoteTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "049 - Disclosure - Note 21 - Accumulated Other Comprehensive Income (Loss) (Tables)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-tables", "shortName": "Note 21 - Accumulated Other Comprehensive Income (Loss) (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "us-gaap:ComprehensiveIncomeNoteTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R51": { "firstAnchor": { "ancestors": [ "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "050 - Disclosure - Note 22 - Stock Compensation Plans (Tables)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-tables", "shortName": "Note 22 - Stock Compensation Plans (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R52": { "firstAnchor": { "ancestors": [ "us-gaap:RevenueFromContractWithCustomerTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DisaggregationOfRevenueTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "051 - Disclosure - Note 23 - Revenue Recognition (Tables)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-23-revenue-recognition-tables", "shortName": "Note 23 - Revenue Recognition (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "us-gaap:RevenueFromContractWithCustomerTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DisaggregationOfRevenueTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R53": { "firstAnchor": { "ancestors": [ "us-gaap:DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfDerivativeInstrumentsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "052 - Disclosure - Note 24 - Derivative Financial Instruments (Tables)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-tables", "shortName": "Note 24 - Derivative Financial Instruments (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "us-gaap:DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfDerivativeInstrumentsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R54": { "firstAnchor": { "ancestors": [ "us-gaap:BusinessCombinationDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfBusinessAcquisitionsByAcquisitionTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "053 - Disclosure - Note 25 - Acquisitions (Tables)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-tables", "shortName": "Note 25 - Acquisitions (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "us-gaap:BusinessCombinationDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfBusinessAcquisitionsByAcquisitionTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R55": { "firstAnchor": { "ancestors": [ "us-gaap:CondensedFinancialInformationOfParentCompanyOnlyDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "srt:ScheduleOfCondensedBalanceSheetTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "054 - Disclosure - Note 27 - Parent Company Only Financial Statements (Tables)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-tables", "shortName": "Note 27 - Parent Company Only Financial Statements (Tables)", "subGroupType": "parenthetical", "uniqueAnchor": { "ancestors": [ "us-gaap:CondensedFinancialInformationOfParentCompanyOnlyDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "srt:ScheduleOfCondensedBalanceSheetTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R56": { "firstAnchor": { "ancestors": [ "p", "fxnc:RisksAndUncertaintiesPolicyTextBlock", "us-gaap:OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "fxnc:FinancingReceivableDeferredPayments", "reportCount": 1, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "055 - Disclosure - Note 1 - Nature of Banking Activities and Significant Accounting Policies (Details Textual)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual", "shortName": "Note 1 - Nature of Banking Activities and Significant Accounting Policies (Details Textual)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "p", "us-gaap:AdvertisingCostsPolicyTextBlock", "us-gaap:OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": "-3", "lang": null, "name": "us-gaap:AdvertisingExpense", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R57": { "firstAnchor": { "ancestors": [ "span", "p", "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "fxnc:WeightedAverageRepricingTerm", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "056 - Disclosure - Note 2 - Securities (Details Textual)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-details-textual", "shortName": "Note 2 - Securities (Details Textual)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "p", "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "fxnc:WeightedAverageRepricingTerm", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R58": { "firstAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "fxnc:ScheduleOfAvailableforsaleAndHeldtomaturityReconciliationTableTextBlock", "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis", "reportCount": 1, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "057 - Disclosure - Note 2 - Securities - Summary of Amortized Costs and Fair Values of Securities (Details)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-summary-of-amortized-costs-and-fair-values-of-securities-details", "shortName": "Note 2 - Securities - Summary of Amortized Costs and Fair Values of Securities (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "fxnc:ScheduleOfAvailableforsaleAndHeldtomaturityReconciliationTableTextBlock", "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "-3", "lang": null, "name": "us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R59": { "firstAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:ScheduleOfTemporaryImpairmentLossesInvestmentsTableTextBlock", "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "058 - Disclosure - Note 2 - Securities - Investments in an Unrealized Loss Position That Were Temporarily Impaired (Details)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-investments-in-an-unrealized-loss-position-that-were-temporarily-impaired-details", "shortName": "Note 2 - Securities - Investments in an Unrealized Loss Position That Were Temporarily Impaired (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:ScheduleOfTemporaryImpairmentLossesInvestmentsTableTextBlock", "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R6": { "firstAnchor": null, "groupType": "statement", "isDefault": "false", "longName": "005 - Statement - Consolidated Statements of Comprehensive Income (Parentheticals)", "role": "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-comprehensive-income-parentheticals", "shortName": "Consolidated Statements of Comprehensive Income (Parentheticals)", "subGroupType": "parenthetical", "uniqueAnchor": null }, "R60": { "firstAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:InvestmentsClassifiedByContractualMaturityDateTableTextBlock", "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "059 - Disclosure - Note 2 - Securities - Amortized Cost and Fair Value of Securities (Details)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-amortized-cost-and-fair-value-of-securities-details", "shortName": "Note 2 - Securities - Amortized Cost and Fair Value of Securities (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:InvestmentsClassifiedByContractualMaturityDateTableTextBlock", "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R61": { "firstAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:MarketableSecuritiesTextBlock", "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:FederalHomeLoanBankStock", "reportCount": 1, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "060 - Disclosure - Note 2 - Securities - Composition of Restricted Securities (Details)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-composition-of-restricted-securities-details", "shortName": "Note 2 - Securities - Composition of Restricted Securities (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:MarketableSecuritiesTextBlock", "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "-4", "lang": null, "name": "us-gaap:FederalReserveBankStock", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R62": { "firstAnchor": { "ancestors": [ "span", "p", "us-gaap:LoansNotesTradeAndOtherReceivablesExcludingAllowanceForCreditLossesTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "061 - Disclosure - Note 3 - Loans (Details Textual)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-details-textual", "shortName": "Note 3 - Loans (Details Textual)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "p", "us-gaap:LoansNotesTradeAndOtherReceivablesExcludingAllowanceForCreditLossesTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R63": { "firstAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock", "us-gaap:LoansNotesTradeAndOtherReceivablesExcludingAllowanceForCreditLossesTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:LoansAndLeasesReceivableGrossCarryingAmount", "reportCount": 1, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "062 - Disclosure - Note 3 - Loans - Summary of Loans (Details)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loans-details", "shortName": "Note 3 - Loans - Summary of Loans (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock", "us-gaap:LoansNotesTradeAndOtherReceivablesExcludingAllowanceForCreditLossesTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2020-12-31_FinancingReceivablePortfolioSegmentAxis-ConsumerAndOtherLoansMember_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis-ConsumerAndOtherLoansMember", "decimals": "-3", "lang": null, "name": "us-gaap:LoansAndLeasesReceivableGrossCarryingAmount", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R64": { "firstAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock", "us-gaap:LoansNotesTradeAndOtherReceivablesExcludingAllowanceForCreditLossesTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:LoansAndLeasesReceivableGrossCarryingAmount", "reportCount": 1, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "063 - Disclosure - Note 3 - Loans - Summary of Loan Classes and an Aging of Past Due Loans (Details)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loan-classes-and-an-aging-of-past-due-loans-details", "shortName": "Note 3 - Loans - Summary of Loan Classes and an Aging of Past Due Loans (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:PastDueFinancingReceivablesTableTextBlock", "us-gaap:LoansNotesTradeAndOtherReceivablesExcludingAllowanceForCreditLossesTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "-3", "lang": null, "name": "us-gaap:FinancingReceivableRecordedInvestmentNonaccrualStatus", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R65": { "firstAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock", "us-gaap:LoansNotesTradeAndOtherReceivablesExcludingAllowanceForCreditLossesTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:LoansAndLeasesReceivableGrossCarryingAmount", "reportCount": 1, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "064 - Disclosure - Note 3 - Loans - Analysis of the Credit Risk Profile of Each Loan Class (Details)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-analysis-of-the-credit-risk-profile-of-each-loan-class-details", "shortName": "Note 3 - Loans - Analysis of the Credit Risk Profile of Each Loan Class (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:FinancingReceivableCreditQualityIndicatorsTableTextBlock", "us-gaap:LoansNotesTradeAndOtherReceivablesExcludingAllowanceForCreditLossesTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31_InternalCreditAssessmentAxis-PassMember", "decimals": "-3", "lang": null, "name": "us-gaap:LoansAndLeasesReceivableGrossCarryingAmount", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R66": { "firstAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock", "us-gaap:LoansNotesTradeAndOtherReceivablesExcludingAllowanceForCreditLossesTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:LoansAndLeasesReceivableGrossCarryingAmount", "reportCount": 1, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "065 - Disclosure - Note 3 - Loans - Loans Acquired in Business Combinations (Details)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-loans-acquired-in-business-combinations-details", "shortName": "Note 3 - Loans - Loans Acquired in Business Combinations (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "fxnc:LoansAcquiredInBusinessCombinationTableTextBlock", "us-gaap:LoansNotesTradeAndOtherReceivablesExcludingAllowanceForCreditLossesTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31_CreditLossStatusAxis-FinancialAssetAcquiredAndNoCreditDeteriorationMember", "decimals": "-3", "lang": null, "name": "us-gaap:LoansAndLeasesReceivableGrossCarryingAmount", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R67": { "firstAnchor": { "ancestors": [ "p", "us-gaap:LoansAndLeasesReceivableTroubledDebtRestructuringPolicy", "us-gaap:OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:FinancingReceivableModificationsRecordedInvestment", "reportCount": 1, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "066 - Disclosure - Note 4 - Allowance for Loan Losses (Details Textual)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-details-textual", "shortName": "Note 4 - Allowance for Loan Losses (Details Textual)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "p", "us-gaap:AllowanceForCreditLossesTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": "-3", "lang": null, "name": "us-gaap:FinancingReceivableModificationsNumberOfContracts2", "reportCount": 1, "unique": true, "unitRef": "Pure", "xsiNil": "false" } }, "R68": { "firstAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "ix:continuation", "us-gaap:AllowanceForCreditLossesTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2019-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:LoansAndLeasesReceivableAllowance", "reportCount": 1, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "067 - Disclosure - Note 4 - Allowance for Loan Losses - Allowance by Impairment Methodology and Loans by Impairment Methodology (Details)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-allowance-by-impairment-methodology-and-loans-by-impairment-methodology-details", "shortName": "Note 4 - Allowance for Loan Losses - Allowance by Impairment Methodology and Loans by Impairment Methodology (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock", "us-gaap:AllowanceForCreditLossesTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": "-3", "lang": null, "name": "us-gaap:AllowanceForDoubtfulAccountsReceivableWriteOffs", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R69": { "firstAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:ImpairedFinancingReceivablesTableTextBlock", "us-gaap:AllowanceForCreditLossesTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:ImpairedFinancingReceivableUnpaidPrincipalBalance", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "068 - Disclosure - Note 4 - Allowance for Loan Losses - Impaired Loans and Related Allowances (Details)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-impaired-loans-and-related-allowances-details", "shortName": "Note 4 - Allowance for Loan Losses - Impaired Loans and Related Allowances (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:ImpairedFinancingReceivablesTableTextBlock", "us-gaap:AllowanceForCreditLossesTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:ImpairedFinancingReceivableUnpaidPrincipalBalance", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R7": { "firstAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "div", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:NetIncomeLoss", "reportCount": 1, "unitRef": "USD", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "006 - Statement - Consolidated Statements of Cash Flows", "role": "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-", "shortName": "Consolidated Statements of Cash Flows", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "div", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": "-3", "lang": null, "name": "us-gaap:DepreciationAmortizationAndAccretionNet", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R70": { "firstAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "div", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:OtherRealEstate", "reportCount": 1, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "069 - Disclosure - Note 5 - Other Real Estate Owned (Details Textual)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned-details-textual", "shortName": "Note 5 - Other Real Estate Owned (Details Textual)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "p", "us-gaap:RealEstateOwnedTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": "-3", "lang": null, "name": "fxnc:OtherRealEstateOwnedExpenses", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R71": { "firstAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:OtherRealEstateRollForwardTableTextBlock", "us-gaap:RealEstateOwnedTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2020-12-31", "decimals": "-3", "first": true, "lang": null, "name": "fxnc:OtherRealEstateGross", "reportCount": 1, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "070 - Disclosure - Note 5 - Other Real Estate Owned - Changes in Balance for OREO (Details)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned-changes-in-balance-for-oreo-details", "shortName": "Note 5 - Other Real Estate Owned - Changes in Balance for OREO (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:OtherRealEstateRollForwardTableTextBlock", "us-gaap:RealEstateOwnedTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2019-12-31", "decimals": "-3", "lang": null, "name": "fxnc:OtherRealEstateGross", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R72": { "firstAnchor": { "ancestors": [ "p", "us-gaap:PropertyPlantAndEquipmentDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:Depreciation", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "071 - Disclosure - Note 6 - Premises and Equipment (Details Textual)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-6-premises-and-equipment-details-textual", "shortName": "Note 6 - Premises and Equipment (Details Textual)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "p", "us-gaap:PropertyPlantAndEquipmentDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:Depreciation", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R73": { "firstAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:PropertyPlantAndEquipmentTextBlock", "us-gaap:PropertyPlantAndEquipmentDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:PropertyPlantAndEquipmentGross", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "072 - Disclosure - Note 6 - Premises and Equipment - Premises and Equipment (Details)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-6-premises-and-equipment-premises-and-equipment-details", "shortName": "Note 6 - Premises and Equipment - Premises and Equipment (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:PropertyPlantAndEquipmentTextBlock", "us-gaap:PropertyPlantAndEquipmentDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:PropertyPlantAndEquipmentGross", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R74": { "firstAnchor": { "ancestors": [ "p", "us-gaap:DepositLiabilitiesDisclosuresTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:TimeDepositsAtOrAboveFDICInsuranceLimit", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "073 - Disclosure - Note 7 - Deposits (Details Textual)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-7-deposits-details-textual", "shortName": "Note 7 - Deposits (Details Textual)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "p", "us-gaap:DepositLiabilitiesDisclosuresTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:TimeDepositsAtOrAboveFDICInsuranceLimit", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R75": { "firstAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:TimeDepositMaturitiesTableTextBlock", "us-gaap:DepositLiabilitiesDisclosuresTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:TimeDepositMaturitiesYearOne", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "074 - Disclosure - Note 7 - Deposits - Scheduled Maturities of Time Deposits (Details)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-7-deposits-scheduled-maturities-of-time-deposits-details", "shortName": "Note 7 - Deposits - Scheduled Maturities of Time Deposits (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:TimeDepositMaturitiesTableTextBlock", "us-gaap:DepositLiabilitiesDisclosuresTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:TimeDepositMaturitiesYearOne", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R76": { "firstAnchor": { "ancestors": [ "p", "fxnc:OtherBorrowingsTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "075 - Disclosure - Note 8 - Other Borrowings (Details Textual)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-8-other-borrowings-details-textual", "shortName": "Note 8 - Other Borrowings (Details Textual)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "p", "fxnc:OtherBorrowingsTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R77": { "firstAnchor": { "ancestors": [ "p", "us-gaap:SubordinatedBorrowingsDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2015-10-30_DebtInstrumentAxis-SubordinatedLoanAgreementNoteMember", "decimals": "-6", "first": true, "lang": null, "name": "us-gaap:DebtInstrumentFaceAmount", "reportCount": 1, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "076 - Disclosure - Note 9 - Subordinated Debt (Details Textual)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-9-subordinated-debt-details-textual", "shortName": "Note 9 - Subordinated Debt (Details Textual)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "p", "us-gaap:SubordinatedBorrowingsDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2020-06-29_DebtInstrumentAxis-SubordinatedTermNoteDue2030Member", "decimals": "-6", "lang": null, "name": "us-gaap:DebtInstrumentFaceAmount", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R78": { "firstAnchor": { "ancestors": [ "p", "us-gaap:DebtDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2004-06-17_2004-06-17_LegalEntityAxis-FirstNationalVAStatutoryTrustIIMember", "decimals": "-6", "first": true, "lang": null, "name": "us-gaap:ProceedsFromIssuanceOfTrustPreferredSecurities", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "077 - Disclosure - Note 10 - Junior Subordinated Debt (Details Textual)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-10-junior-subordinated-debt-details-textual", "shortName": "Note 10 - Junior Subordinated Debt (Details Textual)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "p", "us-gaap:DebtDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2004-06-17_2004-06-17_LegalEntityAxis-FirstNationalVAStatutoryTrustIIMember", "decimals": "-6", "first": true, "lang": null, "name": "us-gaap:ProceedsFromIssuanceOfTrustPreferredSecurities", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R79": { "firstAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock", "us-gaap:IncomeTaxDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "078 - Disclosure - Note 11 - Income Taxes - Net Deferred Tax Assets (Details)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details", "shortName": "Note 11 - Income Taxes - Net Deferred Tax Assets (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock", "us-gaap:IncomeTaxDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R8": { "firstAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "div", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2019-12-31_StatementEquityComponentsAxis-CommonStockMember", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:StockholdersEquity", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "007 - Statement - Consolidated Statements of Changes in Shareholders' Equity", "role": "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity", "shortName": "Consolidated Statements of Changes in Shareholders' Equity", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "div", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2019-12-31_StatementEquityComponentsAxis-CommonStockMember", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:StockholdersEquity", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R80": { "firstAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock", "us-gaap:IncomeTaxDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:CurrentIncomeTaxExpenseBenefit", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "079 - Disclosure - Note 11 - Income Taxes - Income Tax Expense (Details)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-income-tax-expense-details", "shortName": "Note 11 - Income Taxes - Income Tax Expense (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock", "us-gaap:IncomeTaxDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:CurrentIncomeTaxExpenseBenefit", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R81": { "firstAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock", "us-gaap:IncomeTaxDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "080 - Disclosure - Note 11 - Income Taxes - Income Tax Rate Reconciliation (Details)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-income-tax-rate-reconciliation-details", "shortName": "Note 11 - Income Taxes - Income Tax Rate Reconciliation (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock", "us-gaap:IncomeTaxDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R82": { "firstAnchor": { "ancestors": [ "span", "p", "fxnc:FundsRestrictionsAndReserveBalanceTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "-5", "first": true, "lang": null, "name": "fxnc:AggregateAmountOfUnrestrictedFundsTransferredFromBank", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "081 - Disclosure - Note 12 - Funds Restrictions and Reserve Balance (Details Textual)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-12-funds-restrictions-and-reserve-balance-details-textual", "shortName": "Note 12 - Funds Restrictions and Reserve Balance (Details Textual)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "p", "fxnc:FundsRestrictionsAndReserveBalanceTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "-5", "first": true, "lang": null, "name": "fxnc:AggregateAmountOfUnrestrictedFundsTransferredFromBank", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R83": { "firstAnchor": { "ancestors": [ "p", "us-gaap:PensionAndOtherPostretirementBenefitsDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31_RetirementPlanTypeAxis-The401KPlanMember", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:DefinedContributionPlanCostRecognized", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "082 - Disclosure - Note 13 - Benefit Plans (Details Textual)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-13-benefit-plans-details-textual", "shortName": "Note 13 - Benefit Plans (Details Textual)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "p", "us-gaap:PensionAndOtherPostretirementBenefitsDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31_RetirementPlanTypeAxis-The401KPlanMember", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:DefinedContributionPlanCostRecognized", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R84": { "firstAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "div", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:NetIncomeLoss", "reportCount": 1, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "083 - Disclosure - Note 14 - Earnings Per Common Share - Basic and Diluted Earnings Per Share (Details)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-14-earnings-per-common-share-basic-and-diluted-earnings-per-share-details", "shortName": "Note 14 - Earnings Per Common Share - Basic and Diluted Earnings Per Share (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock", "us-gaap:EarningsPerShareTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": "INF", "lang": null, "name": "us-gaap:WeightedAverageNumberOfSharesOutstandingBasic", "reportCount": 1, "unique": true, "unitRef": "Share", "xsiNil": "false" } }, "R85": { "firstAnchor": { "ancestors": [ "span", "p", "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "-5", "first": true, "lang": null, "name": "fxnc:AmountOfLockedRateCommitmentsForMortgageLoans", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "084 - Disclosure - Note 15 - Commitments and Unfunded Credits (Details Textual)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-15-commitments-and-unfunded-credits-details-textual", "shortName": "Note 15 - Commitments and Unfunded Credits (Details Textual)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "p", "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "-5", "first": true, "lang": null, "name": "fxnc:AmountOfLockedRateCommitmentsForMortgageLoans", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R86": { "firstAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:ScheduleOfFairValueOffBalanceSheetRisksTextBlock", "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31_FinancialInstrumentAxis-CommitmentsToExtendCreditMember", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:FairValueDisclosureOffbalanceSheetRisksAmountAsset", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "085 - Disclosure - Note 15 - Commitments and Unfunded Credits - Financial Instruments Representing Credit Risk (Details)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-15-commitments-and-unfunded-credits-financial-instruments-representing-credit-risk-details", "shortName": "Note 15 - Commitments and Unfunded Credits - Financial Instruments Representing Credit Risk (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:ScheduleOfFairValueOffBalanceSheetRisksTextBlock", "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31_FinancialInstrumentAxis-CommitmentsToExtendCreditMember", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:FairValueDisclosureOffbalanceSheetRisksAmountAsset", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R87": { "firstAnchor": { "ancestors": [ "span", "p", "us-gaap:RelatedPartyTransactionsDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:LoansAndLeasesReceivableRelatedParties", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "086 - Disclosure - Note 16 - Transactions with Related Parties (Details Textual)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-16-transactions-with-related-parties-details-textual", "shortName": "Note 16 - Transactions with Related Parties (Details Textual)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "p", "us-gaap:RelatedPartyTransactionsDisclosureTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:LoansAndLeasesReceivableRelatedParties", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R88": { "firstAnchor": null, "groupType": "disclosure", "isDefault": "false", "longName": "087 - Disclosure - Note 17 - Lease Commitments (Details Textual)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-details-textual", "shortName": "Note 17 - Lease Commitments (Details Textual)", "subGroupType": "details", "uniqueAnchor": null }, "R89": { "firstAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "fxnc:AssetsAndLiabilitiesLesseeTableTextBlock", "us-gaap:LesseeOperatingLeasesTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31_BalanceSheetLocationAxis-OtherAssetsMember", "decimals": "-4", "first": true, "lang": null, "name": "us-gaap:OperatingLeaseRightOfUseAsset", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "088 - Disclosure - Note 17 - Lease Commitments - Operating Lease Right-of-use Asset and Operating Lease Liability (Details)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-operating-lease-rightofuse-asset-and-operating-lease-liability-details", "shortName": "Note 17 - Lease Commitments - Operating Lease Right-of-use Asset and Operating Lease Liability (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "fxnc:AssetsAndLiabilitiesLesseeTableTextBlock", "us-gaap:LesseeOperatingLeasesTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31_BalanceSheetLocationAxis-OtherAssetsMember", "decimals": "-4", "first": true, "lang": null, "name": "us-gaap:OperatingLeaseRightOfUseAsset", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R9": { "firstAnchor": null, "groupType": "statement", "isDefault": "false", "longName": "008 - Statement - Consolidated Statements of Changes in Shareholders' Equity (Parentheticals)", "role": "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity-parentheticals", "shortName": "Consolidated Statements of Changes in Shareholders' Equity (Parentheticals)", "subGroupType": "parenthetical", "uniqueAnchor": null }, "R90": { "firstAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:LeaseCostTableTextBlock", "us-gaap:LesseeOperatingLeasesTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:OperatingLeaseWeightedAverageRemainingLeaseTerm1", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "089 - Disclosure - Note 17 - Lease Commitments - Schedule of Lease Cost and Additional Information Related to Operating Leases (Details)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-schedule-of-lease-cost-and-additional-information-related-to-operating-leases-details", "shortName": "Note 17 - Lease Commitments - Schedule of Lease Cost and Additional Information Related to Operating Leases (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:LeaseCostTableTextBlock", "us-gaap:LesseeOperatingLeasesTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:OperatingLeaseWeightedAverageRemainingLeaseTerm1", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R91": { "firstAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock", "us-gaap:LesseeOperatingLeasesTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "090 - Disclosure - Note 17 - Lease Commitments - Schedule of Undiscounted Cash Flows that Contribute to the Operating Lease Liability (Details)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-schedule-of-undiscounted-cash-flows-that-contribute-to-the-operating-lease-liability-details", "shortName": "Note 17 - Lease Commitments - Schedule of Undiscounted Cash Flows that Contribute to the Operating Lease Liability (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock", "us-gaap:LesseeOperatingLeasesTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R92": { "firstAnchor": { "ancestors": [ "p", "fxnc:DividendReinvestmentPlanTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "fxnc:QuotedPricesPrecedingDividendPaymentDatePeriod", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "091 - Disclosure - Note 18 - Dividend Reinvestment Plan (Details Textual)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-18-dividend-reinvestment-plan-details-textual", "shortName": "Note 18 - Dividend Reinvestment Plan (Details Textual)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "p", "fxnc:DividendReinvestmentPlanTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31", "decimals": null, "first": true, "lang": "en-US", "name": "fxnc:QuotedPricesPrecedingDividendPaymentDatePeriod", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R93": { "firstAnchor": { "ancestors": [ "span", "p", "us-gaap:FairValueDisclosuresTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31_FairValueByMeasurementFrequencyAxis-FairValueMeasurementsNonrecurringMember_InvestmentTypeAxis-LoansHeldForSaleMember", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:AssetsFairValueAdjustment", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "092 - Disclosure - Note 19 - Fair Value Measurements (Details Textual)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-details-textual", "shortName": "Note 19 - Fair Value Measurements (Details Textual)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "p", "us-gaap:FairValueDisclosuresTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "d_2021-01-01_2021-12-31_FairValueByMeasurementFrequencyAxis-FairValueMeasurementsNonrecurringMember_InvestmentTypeAxis-LoansHeldForSaleMember", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:AssetsFairValueAdjustment", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R94": { "firstAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "div", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:AvailableForSaleSecuritiesDebtSecurities", "reportCount": 1, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "093 - Disclosure - Note 19 - Fair Value Measurements - Balances of Assets Measured at Fair Value on Recurring Basis (Details)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-balances-of-assets-measured-at-fair-value-on-recurring-basis-details", "shortName": "Note 19 - Fair Value Measurements - Balances of Assets Measured at Fair Value on Recurring Basis (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:FairValueAssetsMeasuredOnRecurringBasisTextBlock", "us-gaap:FairValueDisclosuresTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31_FairValueByMeasurementFrequencyAxis-FairValueMeasurementsRecurringMember", "decimals": "-3", "lang": null, "name": "us-gaap:AvailableForSaleSecuritiesDebtSecurities", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R95": { "firstAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:FairValueAssetsMeasuredOnNonrecurringBasisTextBlock", "us-gaap:FairValueDisclosuresTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31_FairValueByAssetClassAxis-ImpairedLoansMember_FairValueByMeasurementFrequencyAxis-FairValueMeasurementsNonrecurringMember", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:AssetsFairValueDisclosure", "reportCount": 1, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "094 - Disclosure - Note 19 - Fair Value Measurements - Assets Measured at Fair Value on a Nonrecurring Basis (Details)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-assets-measured-at-fair-value-on-a-nonrecurring-basis-details", "shortName": "Note 19 - Fair Value Measurements - Assets Measured at Fair Value on a Nonrecurring Basis (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:FairValueAssetsMeasuredOnNonrecurringBasisTextBlock", "us-gaap:FairValueDisclosuresTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31_FairValueByAssetClassAxis-ImpairedLoansMember_FairValueByFairValueHierarchyLevelAxis-FairValueInputsLevel1Member_FairValueByMeasurementFrequencyAxis-FairValueMeasurementsNonrecurringMember", "decimals": "-3", "lang": null, "name": "us-gaap:AssetsFairValueDisclosure", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R96": { "firstAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:FairValueAssetsMeasuredOnNonrecurringBasisTextBlock", "us-gaap:FairValueDisclosuresTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31_FairValueByAssetClassAxis-ImpairedLoansMember_FairValueByMeasurementFrequencyAxis-FairValueMeasurementsNonrecurringMember", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:AssetsFairValueDisclosure", "reportCount": 1, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "095 - Disclosure - Note 19 - Fair Value Measurements - Quantitative Information About Level 3 Fair Value Measurements (Details)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-quantitative-information-about-level-3-fair-value-measurements-details", "shortName": "Note 19 - Fair Value Measurements - Quantitative Information About Level 3 Fair Value Measurements (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock", "us-gaap:FairValueDisclosuresTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31_FairValueByAssetClassAxis-ImpairedLoansMember_FairValueByFairValueHierarchyLevelAxis-FairValueInputsLevel3Member_FairValueByMeasurementFrequencyAxis-FairValueMeasurementsNonrecurringMember_MeasurementInputTypeAxis-MeasurementInputCostToSellMember", "decimals": "3", "lang": null, "name": "fxnc:ImpairedLoansMeasurementInput", "reportCount": 1, "unique": true, "unitRef": "Pure", "xsiNil": "false" } }, "R97": { "firstAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "div", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:AvailableForSaleSecuritiesDebtSecurities", "reportCount": 1, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "096 - Disclosure - Note 19 - Fair Value Measurements - Carrying Values and Estimated Values of Financial Instruments (Details)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-carrying-values-and-estimated-values-of-financial-instruments-details", "shortName": "Note 19 - Fair Value Measurements - Carrying Values and Estimated Values of Financial Instruments (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:FairValueByBalanceSheetGroupingTextBlock", "us-gaap:FairValueDisclosuresTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31_FairValueByMeasurementBasisAxis-CarryingReportedAmountFairValueDisclosureMember", "decimals": "-3", "lang": null, "name": "us-gaap:CashAndCashEquivalentsFairValueDisclosure", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } }, "R98": { "firstAnchor": { "ancestors": [ "p", "us-gaap:RegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "3", "first": true, "lang": null, "name": "us-gaap:BankingRegulationCapitalConservationBufferCapitalConservedMinimum", "reportCount": 1, "unique": true, "unitRef": "Pure", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "097 - Disclosure - Note 20 - Regulatory Matters (Details Textual)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters-details-textual", "shortName": "Note 20 - Regulatory Matters (Details Textual)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "p", "us-gaap:RegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "3", "first": true, "lang": null, "name": "us-gaap:BankingRegulationCapitalConservationBufferCapitalConservedMinimum", "reportCount": 1, "unique": true, "unitRef": "Pure", "xsiNil": "false" } }, "R99": { "firstAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:ScheduleOfComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock", "us-gaap:RegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:Capital", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "098 - Disclosure - Note 20 - Regulatory Matters - Comparison of Capital of Company and Bank with Minimum Regulatory Guidelines (Details)", "role": "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters-comparison-of-capital-of-company-and-bank-with-minimum-regulatory-guidelines-details", "shortName": "Note 20 - Regulatory Matters - Comparison of Capital of Company and Bank with Minimum Regulatory Guidelines (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "tbody", "table", "us-gaap:ScheduleOfComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock", "us-gaap:RegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock", "body", "html" ], "baseRef": "fxnc20211231_10k.htm", "contextRef": "i_2021-12-31", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:Capital", "reportCount": 1, "unique": true, "unitRef": "USD", "xsiNil": "false" } } }, "segmentCount": 107, "tag": { "dei_AmendmentFlag": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.", "label": "Amendment Flag" } } }, "localname": "AmendmentFlag", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-document-and-entity-information" ], "xbrltype": "booleanItemType" }, "dei_AuditorFirmId": { "auth_ref": [ "r838", "r839", "r840" ], "lang": { "en-us": { "role": { "documentation": "PCAOB issued Audit Firm Identifier", "label": "Auditor Firm ID" } } }, "localname": "AuditorFirmId", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-document-and-entity-information" ], "xbrltype": "nonemptySequenceNumberItemType" }, "dei_AuditorLocation": { "auth_ref": [ "r838", "r839", "r840" ], "lang": { "en-us": { "role": { "label": "Auditor Location" } } }, "localname": "AuditorLocation", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-document-and-entity-information" ], "xbrltype": "internationalNameItemType" }, "dei_AuditorName": { "auth_ref": [ "r838", "r839", "r840" ], "lang": { "en-us": { "role": { "label": "Auditor Name" } } }, "localname": "AuditorName", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-document-and-entity-information" ], "xbrltype": "internationalNameItemType" }, "dei_CityAreaCode": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Area code of city", "label": "City Area Code" } } }, "localname": "CityAreaCode", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-document-and-entity-information" ], "xbrltype": "normalizedStringItemType" }, "dei_CurrentFiscalYearEndDate": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "End date of current fiscal year in the format --MM-DD.", "label": "Current Fiscal Year End Date" } } }, "localname": "CurrentFiscalYearEndDate", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-document-and-entity-information" ], "xbrltype": "gMonthDayItemType" }, "dei_DocumentAnnualReport": { "auth_ref": [ "r838", "r839", "r840" ], "lang": { "en-us": { "role": { "documentation": "Boolean flag that is true only for a form used as an annual report.", "label": "Document Annual Report" } } }, "localname": "DocumentAnnualReport", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-document-and-entity-information" ], "xbrltype": "booleanItemType" }, "dei_DocumentFiscalPeriodFocus": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Fiscal period values are FY, Q1, Q2, and Q3. 1st, 2nd and 3rd quarter 10-Q or 10-QT statements have value Q1, Q2, and Q3 respectively, with 10-K, 10-KT or other fiscal year statements having FY.", "label": "Document Fiscal Period Focus" } } }, "localname": "DocumentFiscalPeriodFocus", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-document-and-entity-information" ], "xbrltype": "fiscalPeriodItemType" }, "dei_DocumentFiscalYearFocus": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This is focus fiscal year of the document report in YYYY format. For a 2006 annual report, which may also provide financial information from prior periods, fiscal 2006 should be given as the fiscal year focus. Example: 2006.", "label": "Document Fiscal Year Focus" } } }, "localname": "DocumentFiscalYearFocus", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-document-and-entity-information" ], "xbrltype": "gYearItemType" }, "dei_DocumentInformationLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Document Information [Line Items]" } } }, "localname": "DocumentInformationLineItems", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-document-and-entity-information" ], "xbrltype": "stringItemType" }, "dei_DocumentInformationTable": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Container to support the formal attachment of each official or unofficial, public or private document as part of a submission package.", "label": "Document Information [Table]" } } }, "localname": "DocumentInformationTable", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "xbrltype": "stringItemType" }, "dei_DocumentPeriodEndDate": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD.", "label": "Document Period End Date" } } }, "localname": "DocumentPeriodEndDate", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-document-and-entity-information" ], "xbrltype": "dateItemType" }, "dei_DocumentTransitionReport": { "auth_ref": [ "r841" ], "lang": { "en-us": { "role": { "documentation": "Boolean flag that is true only for a form used as a transition report.", "label": "Document Transition Report" } } }, "localname": "DocumentTransitionReport", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-document-and-entity-information" ], "xbrltype": "booleanItemType" }, "dei_DocumentType": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.", "label": "Document Type" } } }, "localname": "DocumentType", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-document-and-entity-information" ], "xbrltype": "submissionTypeItemType" }, "dei_EntityAddressAddressLine1": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Address Line 1 such as Attn, Building Name, Street Name", "label": "Entity Address, Address Line One" } } }, "localname": "EntityAddressAddressLine1", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-document-and-entity-information" ], "xbrltype": "normalizedStringItemType" }, "dei_EntityAddressCityOrTown": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Name of the City or Town", "label": "Entity Address, City or Town" } } }, "localname": "EntityAddressCityOrTown", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-document-and-entity-information" ], "xbrltype": "normalizedStringItemType" }, "dei_EntityAddressPostalZipCode": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Code for the postal or zip code", "label": "Entity Address, Postal Zip Code" } } }, "localname": "EntityAddressPostalZipCode", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-document-and-entity-information" ], "xbrltype": "normalizedStringItemType" }, "dei_EntityAddressStateOrProvince": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Name of the state or province.", "label": "Entity Address, State or Province" } } }, "localname": "EntityAddressStateOrProvince", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-document-and-entity-information" ], "xbrltype": "stateOrProvinceItemType" }, "dei_EntityCentralIndexKey": { "auth_ref": [ "r836" ], "lang": { "en-us": { "role": { "documentation": "A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.", "label": "Entity Central Index Key" } } }, "localname": "EntityCentralIndexKey", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-document-and-entity-information" ], "xbrltype": "centralIndexKeyItemType" }, "dei_EntityCommonStockSharesOutstanding": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument.", "label": "Entity Common Stock, Shares Outstanding" } } }, "localname": "EntityCommonStockSharesOutstanding", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-document-and-entity-information" ], "xbrltype": "sharesItemType" }, "dei_EntityCurrentReportingStatus": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Indicate 'Yes' or 'No' whether registrants (1) have filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that registrants were required to file such reports), and (2) have been subject to such filing requirements for the past 90 days. This information should be based on the registrant's current or most recent filing containing the related disclosure.", "label": "Entity Current Reporting Status" } } }, "localname": "EntityCurrentReportingStatus", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-document-and-entity-information" ], "xbrltype": "yesNoItemType" }, "dei_EntityDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "All the names of the entities being reported upon in a document. Any legal structure used to conduct activities or to hold assets. Some examples of such structures are corporations, partnerships, limited liability companies, grantor trusts, and other trusts. This item does not include business and geographical segments which are included in the geographical or business segments domains.", "label": "Entity [Domain]" } } }, "localname": "EntityDomain", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets", "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets-parentheticals", "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-", "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-comprehensive-income", "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-comprehensive-income-parentheticals", "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income", "http://www.fbvirginia.com/20211231/role/statement-document-and-entity-information", "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies", "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-10-junior-subordinated-debt", "http://www.fbvirginia.com/20211231/role/statement-note-10-junior-subordinated-debt-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes", "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-income-tax-expense-details", "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-income-tax-rate-reconciliation-details", "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details", "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-tables", "http://www.fbvirginia.com/20211231/role/statement-note-12-funds-restrictions-and-reserve-balance", "http://www.fbvirginia.com/20211231/role/statement-note-12-funds-restrictions-and-reserve-balance-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-13-benefit-plans", "http://www.fbvirginia.com/20211231/role/statement-note-13-benefit-plans-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-14-earnings-per-common-share", "http://www.fbvirginia.com/20211231/role/statement-note-14-earnings-per-common-share-basic-and-diluted-earnings-per-share-details", "http://www.fbvirginia.com/20211231/role/statement-note-14-earnings-per-common-share-tables", "http://www.fbvirginia.com/20211231/role/statement-note-15-commitments-and-unfunded-credits", "http://www.fbvirginia.com/20211231/role/statement-note-15-commitments-and-unfunded-credits-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-15-commitments-and-unfunded-credits-financial-instruments-representing-credit-risk-details", "http://www.fbvirginia.com/20211231/role/statement-note-15-commitments-and-unfunded-credits-tables", "http://www.fbvirginia.com/20211231/role/statement-note-16-transactions-with-related-parties", "http://www.fbvirginia.com/20211231/role/statement-note-16-transactions-with-related-parties-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments", "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-operating-lease-rightofuse-asset-and-operating-lease-liability-details", "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-schedule-of-lease-cost-and-additional-information-related-to-operating-leases-details", "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-schedule-of-undiscounted-cash-flows-that-contribute-to-the-operating-lease-liability-details", "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-tables", "http://www.fbvirginia.com/20211231/role/statement-note-18-dividend-reinvestment-plan", "http://www.fbvirginia.com/20211231/role/statement-note-18-dividend-reinvestment-plan-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-assets-measured-at-fair-value-on-a-nonrecurring-basis-details", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-balances-of-assets-measured-at-fair-value-on-recurring-basis-details", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-carrying-values-and-estimated-values-of-financial-instruments-details", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-quantitative-information-about-level-3-fair-value-measurements-details", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-tables", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-amortized-cost-and-fair-value-of-securities-details", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-composition-of-restricted-securities-details", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-investments-in-an-unrealized-loss-position-that-were-temporarily-impaired-details", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-summary-of-amortized-costs-and-fair-values-of-securities-details", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-tables", "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters", "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters-comparison-of-capital-of-company-and-bank-with-minimum-regulatory-guidelines-details", "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters-tables", "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss", "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-changes-in-each-component-of-accumulated-other-comprehensive-income-loss-details", "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-changes-in-each-component-of-accumulated-other-comprehensive-income-loss-details-parentheticals", "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-reclassifications-from-accumulated-other-comprehensive-loss-details", "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-tables", "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans", "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-summary-of-restricted-stock-unit-activity-details", "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-tables", "http://www.fbvirginia.com/20211231/role/statement-note-23-revenue-recognition", "http://www.fbvirginia.com/20211231/role/statement-note-23-revenue-recognition-disaggregation-of-revenue-details", "http://www.fbvirginia.com/20211231/role/statement-note-23-revenue-recognition-tables", "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-", "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-derivative-instruments-components-details", "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-tables", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-tables", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-unaudited-pro-forma-amounts-details", "http://www.fbvirginia.com/20211231/role/statement-note-26-subsequent-events-", "http://www.fbvirginia.com/20211231/role/statement-note-26-subsequent-events-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-balance-sheet-details", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-cash-flows-details", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-income-details", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-tables", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-analysis-of-the-credit-risk-profile-of-each-loan-class-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-loans-acquired-in-business-combinations-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loan-classes-and-an-aging-of-past-due-loans-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loans-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-tables", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-allowance-by-impairment-methodology-and-loans-by-impairment-methodology-details", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-impaired-loans-and-related-allowances-details", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-tables", "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned", "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned-changes-in-balance-for-oreo-details", "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned-tables", "http://www.fbvirginia.com/20211231/role/statement-note-6-premises-and-equipment", "http://www.fbvirginia.com/20211231/role/statement-note-6-premises-and-equipment-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-6-premises-and-equipment-premises-and-equipment-details", "http://www.fbvirginia.com/20211231/role/statement-note-6-premises-and-equipment-tables", "http://www.fbvirginia.com/20211231/role/statement-note-7-deposits", "http://www.fbvirginia.com/20211231/role/statement-note-7-deposits-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-7-deposits-scheduled-maturities-of-time-deposits-details", "http://www.fbvirginia.com/20211231/role/statement-note-7-deposits-tables", "http://www.fbvirginia.com/20211231/role/statement-note-8-other-borrowings", "http://www.fbvirginia.com/20211231/role/statement-note-8-other-borrowings-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-9-subordinated-debt-", "http://www.fbvirginia.com/20211231/role/statement-note-9-subordinated-debt-details-textual", "http://www.fbvirginia.com/20211231/role/statement-significant-accounting-policies-policies" ], "xbrltype": "domainItemType" }, "dei_EntityEmergingGrowthCompany": { "auth_ref": [ "r836" ], "lang": { "en-us": { "role": { "documentation": "Indicate if registrant meets the emerging growth company criteria.", "label": "Entity Emerging Growth Company" } } }, "localname": "EntityEmergingGrowthCompany", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-document-and-entity-information" ], "xbrltype": "booleanItemType" }, "dei_EntityFileNumber": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.", "label": "Entity File Number" } } }, "localname": "EntityFileNumber", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-document-and-entity-information" ], "xbrltype": "fileNumberItemType" }, "dei_EntityFilerCategory": { "auth_ref": [ "r836" ], "lang": { "en-us": { "role": { "documentation": "Indicate whether the registrant is one of the following: Large Accelerated Filer, Accelerated Filer, Non-accelerated Filer. Definitions of these categories are stated in Rule 12b-2 of the Exchange Act. This information should be based on the registrant's current or most recent filing containing the related disclosure.", "label": "Entity Filer Category" } } }, "localname": "EntityFilerCategory", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-document-and-entity-information" ], "xbrltype": "filerCategoryItemType" }, "dei_EntityIncorporationStateCountryCode": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Two-character EDGAR code representing the state or country of incorporation.", "label": "Entity Incorporation, State or Country Code" } } }, "localname": "EntityIncorporationStateCountryCode", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-document-and-entity-information" ], "xbrltype": "edgarStateCountryItemType" }, "dei_EntityInteractiveDataCurrent": { "auth_ref": [ "r859" ], "lang": { "en-us": { "role": { "documentation": "Boolean flag that is true when the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).", "label": "Entity Interactive Data Current" } } }, "localname": "EntityInteractiveDataCurrent", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-document-and-entity-information" ], "xbrltype": "yesNoItemType" }, "dei_EntityPublicFloat": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The aggregate market value of the voting and non-voting common equity held by non-affiliates computed by reference to the price at which the common equity was last sold, or the average bid and asked price of such common equity, as of the last business day of the registrant's most recently completed second fiscal quarter.", "label": "Entity Public Float" } } }, "localname": "EntityPublicFloat", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-document-and-entity-information" ], "xbrltype": "monetaryItemType" }, "dei_EntityRegistrantName": { "auth_ref": [ "r836" ], "lang": { "en-us": { "role": { "documentation": "The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.", "label": "Entity Registrant Name" } } }, "localname": "EntityRegistrantName", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-document-and-entity-information" ], "xbrltype": "normalizedStringItemType" }, "dei_EntityShellCompany": { "auth_ref": [ "r836" ], "lang": { "en-us": { "role": { "documentation": "Boolean flag that is true when the registrant is a shell company as defined in Rule 12b-2 of the Exchange Act.", "label": "Entity Shell Company" } } }, "localname": "EntityShellCompany", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-document-and-entity-information" ], "xbrltype": "booleanItemType" }, "dei_EntitySmallBusiness": { "auth_ref": [ "r836" ], "lang": { "en-us": { "role": { "documentation": "Indicates that the company is a Smaller Reporting Company (SRC).", "label": "Entity Small Business" } } }, "localname": "EntitySmallBusiness", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-document-and-entity-information" ], "xbrltype": "booleanItemType" }, "dei_EntityTaxIdentificationNumber": { "auth_ref": [ "r836" ], "lang": { "en-us": { "role": { "documentation": "The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.", "label": "Entity Tax Identification Number" } } }, "localname": "EntityTaxIdentificationNumber", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-document-and-entity-information" ], "xbrltype": "employerIdItemType" }, "dei_EntityVoluntaryFilers": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Indicate 'Yes' or 'No' if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.", "label": "Entity Voluntary Filers" } } }, "localname": "EntityVoluntaryFilers", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-document-and-entity-information" ], "xbrltype": "yesNoItemType" }, "dei_EntityWellKnownSeasonedIssuer": { "auth_ref": [ "r876" ], "lang": { "en-us": { "role": { "documentation": "Indicate 'Yes' or 'No' if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Is used on Form Type: 10-K, 10-Q, 8-K, 20-F, 6-K, 10-K/A, 10-Q/A, 20-F/A, 6-K/A, N-CSR, N-Q, N-1A.", "label": "Entity Well-known Seasoned Issuer" } } }, "localname": "EntityWellKnownSeasonedIssuer", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-document-and-entity-information" ], "xbrltype": "yesNoItemType" }, "dei_IcfrAuditorAttestationFlag": { "auth_ref": [ "r838", "r839", "r840" ], "lang": { "en-us": { "role": { "label": "ICFR Auditor Attestation Flag" } } }, "localname": "IcfrAuditorAttestationFlag", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-document-and-entity-information" ], "xbrltype": "booleanItemType" }, "dei_LegalEntityAxis": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The set of legal entities associated with a report.", "label": "Legal Entity [Axis]" } } }, "localname": "LegalEntityAxis", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets", "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets-parentheticals", "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-", "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-comprehensive-income", "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-comprehensive-income-parentheticals", "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income", "http://www.fbvirginia.com/20211231/role/statement-document-and-entity-information", "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies", "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-10-junior-subordinated-debt", "http://www.fbvirginia.com/20211231/role/statement-note-10-junior-subordinated-debt-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes", "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-income-tax-expense-details", "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-income-tax-rate-reconciliation-details", "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details", "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-tables", "http://www.fbvirginia.com/20211231/role/statement-note-12-funds-restrictions-and-reserve-balance", "http://www.fbvirginia.com/20211231/role/statement-note-12-funds-restrictions-and-reserve-balance-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-13-benefit-plans", "http://www.fbvirginia.com/20211231/role/statement-note-13-benefit-plans-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-14-earnings-per-common-share", "http://www.fbvirginia.com/20211231/role/statement-note-14-earnings-per-common-share-basic-and-diluted-earnings-per-share-details", "http://www.fbvirginia.com/20211231/role/statement-note-14-earnings-per-common-share-tables", "http://www.fbvirginia.com/20211231/role/statement-note-15-commitments-and-unfunded-credits", "http://www.fbvirginia.com/20211231/role/statement-note-15-commitments-and-unfunded-credits-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-15-commitments-and-unfunded-credits-financial-instruments-representing-credit-risk-details", "http://www.fbvirginia.com/20211231/role/statement-note-15-commitments-and-unfunded-credits-tables", "http://www.fbvirginia.com/20211231/role/statement-note-16-transactions-with-related-parties", "http://www.fbvirginia.com/20211231/role/statement-note-16-transactions-with-related-parties-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments", "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-operating-lease-rightofuse-asset-and-operating-lease-liability-details", "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-schedule-of-lease-cost-and-additional-information-related-to-operating-leases-details", "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-schedule-of-undiscounted-cash-flows-that-contribute-to-the-operating-lease-liability-details", "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-tables", "http://www.fbvirginia.com/20211231/role/statement-note-18-dividend-reinvestment-plan", "http://www.fbvirginia.com/20211231/role/statement-note-18-dividend-reinvestment-plan-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-assets-measured-at-fair-value-on-a-nonrecurring-basis-details", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-balances-of-assets-measured-at-fair-value-on-recurring-basis-details", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-carrying-values-and-estimated-values-of-financial-instruments-details", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-quantitative-information-about-level-3-fair-value-measurements-details", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-tables", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-amortized-cost-and-fair-value-of-securities-details", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-composition-of-restricted-securities-details", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-investments-in-an-unrealized-loss-position-that-were-temporarily-impaired-details", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-summary-of-amortized-costs-and-fair-values-of-securities-details", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-tables", "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters", "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters-comparison-of-capital-of-company-and-bank-with-minimum-regulatory-guidelines-details", "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters-tables", "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss", "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-changes-in-each-component-of-accumulated-other-comprehensive-income-loss-details", "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-changes-in-each-component-of-accumulated-other-comprehensive-income-loss-details-parentheticals", "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-reclassifications-from-accumulated-other-comprehensive-loss-details", "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-tables", "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans", "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-summary-of-restricted-stock-unit-activity-details", "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-tables", "http://www.fbvirginia.com/20211231/role/statement-note-23-revenue-recognition", "http://www.fbvirginia.com/20211231/role/statement-note-23-revenue-recognition-disaggregation-of-revenue-details", "http://www.fbvirginia.com/20211231/role/statement-note-23-revenue-recognition-tables", "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-", "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-derivative-instruments-components-details", "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-tables", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-tables", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-unaudited-pro-forma-amounts-details", "http://www.fbvirginia.com/20211231/role/statement-note-26-subsequent-events-", "http://www.fbvirginia.com/20211231/role/statement-note-26-subsequent-events-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-balance-sheet-details", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-cash-flows-details", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-income-details", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-tables", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-analysis-of-the-credit-risk-profile-of-each-loan-class-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-loans-acquired-in-business-combinations-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loan-classes-and-an-aging-of-past-due-loans-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loans-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-tables", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-allowance-by-impairment-methodology-and-loans-by-impairment-methodology-details", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-impaired-loans-and-related-allowances-details", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-tables", "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned", "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned-changes-in-balance-for-oreo-details", "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned-tables", "http://www.fbvirginia.com/20211231/role/statement-note-6-premises-and-equipment", "http://www.fbvirginia.com/20211231/role/statement-note-6-premises-and-equipment-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-6-premises-and-equipment-premises-and-equipment-details", "http://www.fbvirginia.com/20211231/role/statement-note-6-premises-and-equipment-tables", "http://www.fbvirginia.com/20211231/role/statement-note-7-deposits", "http://www.fbvirginia.com/20211231/role/statement-note-7-deposits-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-7-deposits-scheduled-maturities-of-time-deposits-details", "http://www.fbvirginia.com/20211231/role/statement-note-7-deposits-tables", "http://www.fbvirginia.com/20211231/role/statement-note-8-other-borrowings", "http://www.fbvirginia.com/20211231/role/statement-note-8-other-borrowings-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-9-subordinated-debt-", "http://www.fbvirginia.com/20211231/role/statement-note-9-subordinated-debt-details-textual", "http://www.fbvirginia.com/20211231/role/statement-significant-accounting-policies-policies" ], "xbrltype": "stringItemType" }, "dei_LocalPhoneNumber": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Local phone number for entity.", "label": "Local Phone Number" } } }, "localname": "LocalPhoneNumber", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-document-and-entity-information" ], "xbrltype": "normalizedStringItemType" }, "dei_Security12bTitle": { "auth_ref": [ "r835" ], "lang": { "en-us": { "role": { "documentation": "Title of a 12(b) registered security.", "label": "Title of 12(b) Security" } } }, "localname": "Security12bTitle", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-document-and-entity-information" ], "xbrltype": "securityTitleItemType" }, "dei_SecurityExchangeName": { "auth_ref": [ "r837" ], "lang": { "en-us": { "role": { "documentation": "Name of the Exchange on which a security is registered.", "label": "Security Exchange Name" } } }, "localname": "SecurityExchangeName", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-document-and-entity-information" ], "xbrltype": "edgarExchangeCodeItemType" }, "dei_TradingSymbol": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Trading symbol of an instrument as listed on an exchange.", "label": "Trading Symbol" } } }, "localname": "TradingSymbol", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-document-and-entity-information" ], "xbrltype": "tradingSymbolItemType" }, "fxnc_ATMAndCheckCardExpense": { "auth_ref": [], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income": { "order": 5.0, "parentTag": "us-gaap_NoninterestExpense", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of noninterest expense related to ATM and check card fees and payments which are paid by the Entity and then paid by the customer.", "label": "ATM and check card expenses" } } }, "localname": "ATMAndCheckCardExpense", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income" ], "xbrltype": "monetaryItemType" }, "fxnc_ATMAndCheckCardFeesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents ATM and check card fees.", "label": "ATM and Check Card Fees [Member]" } } }, "localname": "ATMAndCheckCardFeesMember", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-23-revenue-recognition-disaggregation-of-revenue-details" ], "xbrltype": "domainItemType" }, "fxnc_AccessDepositInOtherCommercialBanks": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of access deposit in other commercial banks.", "label": "fxnc_AccessDepositInOtherCommercialBanks", "terseLabel": "Access Deposit in Other Commercial Banks" } } }, "localname": "AccessDepositInOtherCommercialBanks", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-15-commitments-and-unfunded-credits-details-textual" ], "xbrltype": "monetaryItemType" }, "fxnc_AccretionAmortizationOfDiscountsAndPremiumsOnTimeDeposits": { "auth_ref": [], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-": { "order": 1.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of noncash expense included in interest expense for accretion or amortization of debt discounts and premiums associated with related debt instruments.", "label": "Accretion of premium on time deposits" } } }, "localname": "AccretionAmortizationOfDiscountsAndPremiumsOnTimeDeposits", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-" ], "xbrltype": "monetaryItemType" }, "fxnc_AccruedInterestPayableAndOtherLiabilities": { "auth_ref": [], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets": { "order": 3.0, "parentTag": "us-gaap_Liabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The amount of accrued but unpaid interest on deposit liabilities, and liabilities classified as other.", "label": "Accrued interest payable and other liabilities" } } }, "localname": "AccruedInterestPayableAndOtherLiabilities", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets" ], "xbrltype": "monetaryItemType" }, "fxnc_AccruedInterestPayableAndOtherLiabilitiesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents accrued interest payable and other liabilities.", "label": "Accrued Interest Payable and Other Liabilities [Member]" } } }, "localname": "AccruedInterestPayableAndOtherLiabilitiesMember", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-operating-lease-rightofuse-asset-and-operating-lease-liability-details", "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-schedule-of-undiscounted-cash-flows-that-contribute-to-the-operating-lease-liability-details" ], "xbrltype": "domainItemType" }, "fxnc_AccruedInterestPayableFairValueDisclosure": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The fair value portion of accrued interest payable.", "label": "fxnc_AccruedInterestPayableFairValueDisclosure", "verboseLabel": "Accrued interest payable" } } }, "localname": "AccruedInterestPayableFairValueDisclosure", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-carrying-values-and-estimated-values-of-financial-instruments-details" ], "xbrltype": "monetaryItemType" }, "fxnc_AggregateAmountOfDailyAverageDeposit": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The aggregate amounts of daily average required balances.", "label": "fxnc_AggregateAmountOfDailyAverageDeposit", "terseLabel": "Aggregate Amount of Daily Average Deposit" } } }, "localname": "AggregateAmountOfDailyAverageDeposit", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-12-funds-restrictions-and-reserve-balance-details-textual" ], "xbrltype": "monetaryItemType" }, "fxnc_AggregateAmountOfUnrestrictedFundsTransferredFromBank": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The aggregate amount of unrestricted funds that transferred from bank.", "label": "fxnc_AggregateAmountOfUnrestrictedFundsTransferredFromBank", "terseLabel": "Aggregate Amount of Unrestricted Funds Transferred from Bank" } } }, "localname": "AggregateAmountOfUnrestrictedFundsTransferredFromBank", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-12-funds-restrictions-and-reserve-balance-details-textual" ], "xbrltype": "monetaryItemType" }, "fxnc_AmountOfLockedRateCommitmentsForMortgageLoans": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of locked rate commitments for mortgage loans.", "label": "fxnc_AmountOfLockedRateCommitmentsForMortgageLoans", "terseLabel": "Amount of Locked Rate Commitments for Mortgage Loans" } } }, "localname": "AmountOfLockedRateCommitmentsForMortgageLoans", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-15-commitments-and-unfunded-credits-details-textual" ], "xbrltype": "monetaryItemType" }, "fxnc_AmountOfSubstandardAndDoubtfulLoansEvaluatedAsImpaired": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of substandard and doubtful loans evaluated as impaired.", "label": "fxnc_AmountOfSubstandardAndDoubtfulLoansEvaluatedAsImpaired", "terseLabel": "Amount of Substandard and Doubtful Loans Evaluated as Impaired" } } }, "localname": "AmountOfSubstandardAndDoubtfulLoansEvaluatedAsImpaired", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual" ], "xbrltype": "monetaryItemType" }, "fxnc_AssetsAndLiabilitiesLesseeTableTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The tabular disclosure of the lessee's operating lease assets and liabilities.", "label": "Assets and Liabilities, Lessee [Table Text Block]" } } }, "localname": "AssetsAndLiabilitiesLesseeTableTextBlock", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-tables" ], "xbrltype": "textBlockItemType" }, "fxnc_AvailableforsaleSecuritiesNumberOfSecurities": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The number of investment positions in available-for-sale investments.", "label": "fxnc_AvailableforsaleSecuritiesNumberOfSecurities", "terseLabel": "Available-for-Sale Securities, Number of Securities" } } }, "localname": "AvailableforsaleSecuritiesNumberOfSecurities", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-details-textual" ], "xbrltype": "integerItemType" }, "fxnc_BankFranchiseTax": { "auth_ref": [], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income": { "order": 3.0, "parentTag": "us-gaap_NoninterestExpense", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "A tax paid by the bank in lieu of a business license and business tangible property taxes.", "label": "Bank franchise tax" } } }, "localname": "BankFranchiseTax", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income" ], "xbrltype": "monetaryItemType" }, "fxnc_BankOwnedLifeInsurancePolicyTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for bank owned life insurance.", "label": "Bank Owned Life Insurance [Policy Text Block]" } } }, "localname": "BankOwnedLifeInsurancePolicyTextBlock", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-significant-accounting-policies-policies" ], "xbrltype": "textBlockItemType" }, "fxnc_BoardOfDirectorsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The board of directors.", "label": "Board of Directors [Member]" } } }, "localname": "BoardOfDirectorsMember", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans", "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-details-textual" ], "xbrltype": "domainItemType" }, "fxnc_BrokeredDeposits": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The carrying values of brokered deposits.", "label": "fxnc_BrokeredDeposits", "terseLabel": "Brokered Deposits" } } }, "localname": "BrokeredDeposits", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-7-deposits-details-textual" ], "xbrltype": "monetaryItemType" }, "fxnc_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedExpensesAndOtherLiabilities": { "auth_ref": [], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details": { "order": 0.0, "parentTag": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of accrued expenses and other liabilities acquired and at the acquisition date.", "label": "fxnc_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedExpensesAndOtherLiabilities", "verboseLabel": "Accrued expenses and other liabilities" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedExpensesAndOtherLiabilities", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details" ], "xbrltype": "monetaryItemType" }, "fxnc_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedInterestReceivables": { "auth_ref": [], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details": { "order": 5.0, "parentTag": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of accrued interest receivable acquired as of the acquisition date.", "label": "fxnc_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedInterestReceivables", "verboseLabel": "Accrued interest receivable" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedInterestReceivables", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details" ], "xbrltype": "monetaryItemType" }, "fxnc_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedBoli": { "auth_ref": [], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details": { "order": 3.0, "parentTag": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of bank owned life insurance acquired as of the acquisition date.", "label": "fxnc_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedBoli", "verboseLabel": "BOLI" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedBoli", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details" ], "xbrltype": "monetaryItemType" }, "fxnc_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsRestrictedSecurities": { "auth_ref": [], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details": { "order": 4.0, "parentTag": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of investments in restricted securities, acquired at the acquisition date.", "label": "fxnc_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsRestrictedSecurities", "verboseLabel": "Restricted securities" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsRestrictedSecurities", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details" ], "xbrltype": "monetaryItemType" }, "fxnc_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDemandDepositsAndSavingsAccounts": { "auth_ref": [], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details": { "order": 1.0, "parentTag": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of demand deposits and savings accounts acquired as of the acquisition date.", "label": "fxnc_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDemandDepositsAndSavingsAccounts", "verboseLabel": "Demand deposits & savings accounts" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDemandDepositsAndSavingsAccounts", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details" ], "xbrltype": "monetaryItemType" }, "fxnc_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFederalFundsSold": { "auth_ref": [], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details": { "order": 6.0, "parentTag": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of federal funds sold acquired at the acquisition date.", "label": "fxnc_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFederalFundsSold", "verboseLabel": "Federal funds sold" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFederalFundsSold", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details" ], "xbrltype": "monetaryItemType" }, "fxnc_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLoansNetOfAlll": { "auth_ref": [], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details": { "order": 1.0, "parentTag": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of loans net of allowance for loan losses acquired as of the acquisition date.", "label": "fxnc_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLoansNetOfAlll", "verboseLabel": "Loans, net of ALLL" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLoansNetOfAlll", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details" ], "xbrltype": "monetaryItemType" }, "fxnc_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOreo": { "auth_ref": [], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details": { "order": 7.0, "parentTag": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of other real estate owned acquired as of the acquisition date.", "label": "fxnc_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOreo", "verboseLabel": "OREO" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOreo", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details" ], "xbrltype": "monetaryItemType" }, "fxnc_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedTimeDeposits": { "auth_ref": [], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details": { "order": 2.0, "parentTag": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of time deposits acquired as of the acquisition date.", "label": "fxnc_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedTimeDeposits", "verboseLabel": "Time deposits" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedTimeDeposits", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details" ], "xbrltype": "monetaryItemType" }, "fxnc_CapitalConservationBufferPercentageMaintainedAtBank": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents the amount of capital conservation buffer, as a percentage, maintained at a bank.", "label": "fxnc_CapitalConservationBufferPercentageMaintainedAtBank", "terseLabel": "Capital Conservation Buffer Percentage, Maintained at Bank" } } }, "localname": "CapitalConservationBufferPercentageMaintainedAtBank", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters-details-textual" ], "xbrltype": "percentItemType" }, "fxnc_CommercialAndIndustrialLoansMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents information pertaining to commercial and industrial loans.", "label": "Commercial and Industrial Loans [Member]" } } }, "localname": "CommercialAndIndustrialLoansMember", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-analysis-of-the-credit-risk-profile-of-each-loan-class-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-loans-acquired-in-business-combinations-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loan-classes-and-an-aging-of-past-due-loans-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loans-details", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-allowance-by-impairment-methodology-and-loans-by-impairment-methodology-details", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-impaired-loans-and-related-allowances-details" ], "xbrltype": "domainItemType" }, "fxnc_CommonEquityTierOneCapitalRequiredForAdequacyToRiskWeightedAssets": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The minimum Common Equity Tier One Capital Ratio (Common equity tier one capital divided by risk-weighted assets) required for capital adequacy purposes under the regulatory framework for prompt corrective action.", "label": "Common Equity Tier 1 Capital (to Risk-Weighted Assets), minimum capital requirement ratio" } } }, "localname": "CommonEquityTierOneCapitalRequiredForAdequacyToRiskWeightedAssets", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters-comparison-of-capital-of-company-and-bank-with-minimum-regulatory-guidelines-details" ], "xbrltype": "percentItemType" }, "fxnc_CommonEquityTierOneCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The Common Equity Tier 1 capital ratio (Common equity tier 1 capital divided by risk weighted assets) required to be categorized as \"well capitalized\" under the regulatory framework for prompt corrective action.", "label": "Common Equity Tier 1 Capital (to Risk-Weighted Assets), minimum to be well capitalized under prompt corrective action provisions, ratio" } } }, "localname": "CommonEquityTierOneCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters-comparison-of-capital-of-company-and-bank-with-minimum-regulatory-guidelines-details" ], "xbrltype": "percentItemType" }, "fxnc_CommunityBankersBankStock": { "auth_ref": [], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-composition-of-restricted-securities-details": { "order": 0.0, "parentTag": "us-gaap_RestrictedInvestments", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Represents an equity interest in community banks.", "label": "Community Bankers\u2019 Bank stock" } } }, "localname": "CommunityBankersBankStock", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-composition-of-restricted-securities-details" ], "xbrltype": "monetaryItemType" }, "fxnc_ConstructionAndLandDevelopmentMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Information about construction and land development loans.", "label": "Construction and Land Development [Member]" } } }, "localname": "ConstructionAndLandDevelopmentMember", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-analysis-of-the-credit-risk-profile-of-each-loan-class-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-loans-acquired-in-business-combinations-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loan-classes-and-an-aging-of-past-due-loans-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loans-details", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-allowance-by-impairment-methodology-and-loans-by-impairment-methodology-details", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-impaired-loans-and-related-allowances-details" ], "xbrltype": "domainItemType" }, "fxnc_ConsumerAndOtherLoansMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents information pertaining to consumer and other loans.", "label": "Consumer and Other Loans [Member]" } } }, "localname": "ConsumerAndOtherLoansMember", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-3-loans", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-analysis-of-the-credit-risk-profile-of-each-loan-class-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-loans-acquired-in-business-combinations-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loan-classes-and-an-aging-of-past-due-loans-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loans-details", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-allowance-by-impairment-methodology-and-loans-by-impairment-methodology-details" ], "xbrltype": "domainItemType" }, "fxnc_DebtInstrumentInterestRateFloor": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The interest rate floor for debt instrument.", "label": "fxnc_DebtInstrumentInterestRateFloor", "terseLabel": "Debt Instrument, Interest Rate Floor" } } }, "localname": "DebtInstrumentInterestRateFloor", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-8-other-borrowings-details-textual" ], "xbrltype": "percentItemType" }, "fxnc_DebtSecuritiesAvailableforsaleAndHeldtomaturityContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of accumulated unrealized loss on investment in debt security measured at amortized cost (available-for-sale and held-to-maturity), in continuous loss position for less than 12 months.", "label": "fxnc_DebtSecuritiesAvailableforsaleAndHeldtomaturityContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss", "negatedLabel": "Less than 12 months, fair value," } } }, "localname": "DebtSecuritiesAvailableforsaleAndHeldtomaturityContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-investments-in-an-unrealized-loss-position-that-were-temporarily-impaired-details" ], "xbrltype": "monetaryItemType" }, "fxnc_DebtSecuritiesAvailableforsaleAndHeldtomaturityContinuousUnrealizedLossPositionLessThan12MonthsFairValue": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale and held-to-maturity), in continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.", "label": "Less than 12 months, fair value" } } }, "localname": "DebtSecuritiesAvailableforsaleAndHeldtomaturityContinuousUnrealizedLossPositionLessThan12MonthsFairValue", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-investments-in-an-unrealized-loss-position-that-were-temporarily-impaired-details" ], "xbrltype": "monetaryItemType" }, "fxnc_DebtSecuritiesAvailableforsaleAndHeldtomaturitySecuritiesContinuedUnrealizedLossPosition12MonthsOrLongerFairValue": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale and held-to-maturity), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.", "label": "12 months or more, fair value" } } }, "localname": "DebtSecuritiesAvailableforsaleAndHeldtomaturitySecuritiesContinuedUnrealizedLossPosition12MonthsOrLongerFairValue", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-investments-in-an-unrealized-loss-position-that-were-temporarily-impaired-details" ], "xbrltype": "monetaryItemType" }, "fxnc_DebtSecuritiesAvailableforsaleAndHeldtomaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale and held-to-maturity), in continuous unrealized loss position for 12 months or longer, without allowance for credit loss. Includes beneficial interest in securitized financial asset.", "label": "fxnc_DebtSecuritiesAvailableforsaleAndHeldtomaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss", "negatedLabel": "12 months or more, unrealized (loss)" } } }, "localname": "DebtSecuritiesAvailableforsaleAndHeldtomaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-investments-in-an-unrealized-loss-position-that-were-temporarily-impaired-details" ], "xbrltype": "monetaryItemType" }, "fxnc_DebtSecuritiesAvailableforsaleAndHeldtomaturitySecuritiesContinuousUnrealizedLossPositionFairValue": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Fair value of investment in debt security measured at amortized cost (available-for-sale and held-to-maturity), in unrealized loss position.", "label": "Total, fair value" } } }, "localname": "DebtSecuritiesAvailableforsaleAndHeldtomaturitySecuritiesContinuousUnrealizedLossPositionFairValue", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-investments-in-an-unrealized-loss-position-that-were-temporarily-impaired-details" ], "xbrltype": "monetaryItemType" }, "fxnc_DebtSecuritiesAvailableforsaleAndHeldtomaturityUnrealizedLossPositionAccumulatedLossTotal": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of accumulated unrealized loss on investment in debt security measured at amortized cost (available-for-sale and held-to-maturity), in unrealized loss position.", "label": "fxnc_DebtSecuritiesAvailableforsaleAndHeldtomaturityUnrealizedLossPositionAccumulatedLossTotal", "negatedLabel": "Total, unrealized (loss)" } } }, "localname": "DebtSecuritiesAvailableforsaleAndHeldtomaturityUnrealizedLossPositionAccumulatedLossTotal", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-investments-in-an-unrealized-loss-position-that-were-temporarily-impaired-details" ], "xbrltype": "monetaryItemType" }, "fxnc_DeferredTaxAssetsAcquisitionAccountingAdjustments": { "auth_ref": [], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details": { "order": 8.0, "parentTag": "us-gaap_DeferredTaxAssetsGross", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from acquisition accounting adjustments.", "label": "Acquisition accounting adjustments, net" } } }, "localname": "DeferredTaxAssetsAcquisitionAccountingAdjustments", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details" ], "xbrltype": "monetaryItemType" }, "fxnc_DeferredTaxAssetsLeaseLiability": { "auth_ref": [], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details": { "order": 0.0, "parentTag": "us-gaap_DeferredTaxAssetsGross", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from lease liability.", "label": "fxnc_DeferredTaxAssetsLeaseLiability", "verboseLabel": "Lease liability" } } }, "localname": "DeferredTaxAssetsLeaseLiability", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details" ], "xbrltype": "monetaryItemType" }, "fxnc_DeferredTaxAssetsLoanOriginationCostNet": { "auth_ref": [], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details": { "order": 6.0, "parentTag": "us-gaap_DeferredTaxAssetsGross", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from deferred tax assets loan origination cost.", "label": "fxnc_DeferredTaxAssetsLoanOriginationCostNet", "verboseLabel": "Loan origination fees, net" } } }, "localname": "DeferredTaxAssetsLoanOriginationCostNet", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details" ], "xbrltype": "monetaryItemType" }, "fxnc_DeferredTaxAssetsShareBasedCompensationNonvestedAwardsCompensationCostNotYetRecognized": { "auth_ref": [], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details": { "order": 7.0, "parentTag": "us-gaap_DeferredTaxAssetsGross", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from the share-based compensation nonvested awards compensation cost not yet recognized.", "label": "fxnc_DeferredTaxAssetsShareBasedCompensationNonvestedAwardsCompensationCostNotYetRecognized", "verboseLabel": "Unvested stock-based compensation" } } }, "localname": "DeferredTaxAssetsShareBasedCompensationNonvestedAwardsCompensationCostNotYetRecognized", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details" ], "xbrltype": "monetaryItemType" }, "fxnc_DeferredTaxLiabilitiesHousingEquityFundInvestments": { "auth_ref": [], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details": { "order": 1.0, "parentTag": "us-gaap_DeferredIncomeTaxLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of deferred tax liability attributable to taxable temporary differences from housing equity fund investments.", "label": "Housing equity fund" } } }, "localname": "DeferredTaxLiabilitiesHousingEquityFundInvestments", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details" ], "xbrltype": "monetaryItemType" }, "fxnc_DeferredTaxLiabilitiesOtherRealEstateOwned": { "auth_ref": [], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details": { "order": 5.0, "parentTag": "us-gaap_DeferredIncomeTaxLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of deferred tax liability attributable to taxable temporary differences from other real estate owned.", "label": "Other real estate owned" } } }, "localname": "DeferredTaxLiabilitiesOtherRealEstateOwned", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details" ], "xbrltype": "monetaryItemType" }, "fxnc_DeferredTaxLiabilitiesRightOfUseAsset": { "auth_ref": [], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details": { "order": 0.0, "parentTag": "us-gaap_DeferredIncomeTaxLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of deferred tax liability attributable to taxable temporary differences from right of use asset.", "label": "fxnc_DeferredTaxLiabilitiesRightOfUseAsset", "verboseLabel": "Right of use asset" } } }, "localname": "DeferredTaxLiabilitiesRightOfUseAsset", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details" ], "xbrltype": "monetaryItemType" }, "fxnc_DefinedContributionPlanEmployerMatchingContributionForEmployeesContributionBetweenTwoAndSixPercentPercentOfMatch": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The percentage the employer matches of the employee's percentage contribution between two and six percent.", "label": "fxnc_DefinedContributionPlanEmployerMatchingContributionForEmployeesContributionBetweenTwoAndSixPercentPercentOfMatch", "terseLabel": "Defined Contribution Plan, Employer Matching Contribution for Employee's Contribution Between Two and Six Percent, Percent of Match" } } }, "localname": "DefinedContributionPlanEmployerMatchingContributionForEmployeesContributionBetweenTwoAndSixPercentPercentOfMatch", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-13-benefit-plans-details-textual" ], "xbrltype": "percentItemType" }, "fxnc_DefinedContributionPlanEmployerMatchingContributionVestingPeriod": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The period of time over which the employer's matching contributions vest under the benefit plan.", "label": "fxnc_DefinedContributionPlanEmployerMatchingContributionVestingPeriod", "terseLabel": "Defined Contribution Plan, Employer Matching Contribution, Vesting Period (Year)" } } }, "localname": "DefinedContributionPlanEmployerMatchingContributionVestingPeriod", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-13-benefit-plans-details-textual" ], "xbrltype": "durationItemType" }, "fxnc_DefinedContributionPlanMinimumAgeForEligibility": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The minimum age an employee must be in order to participate in the benefit plan.", "label": "fxnc_DefinedContributionPlanMinimumAgeForEligibility", "terseLabel": "Defined Contribution Plan, Minimum Age for Eligibility (Year)" } } }, "localname": "DefinedContributionPlanMinimumAgeForEligibility", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-13-benefit-plans-details-textual" ], "xbrltype": "durationItemType" }, "fxnc_DefinedContributionPlanRetirementBenefitsPayableNumberOfMonthlyPayments": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The number of fixed, monthly payments under the retirement benefit plan.", "label": "fxnc_DefinedContributionPlanRetirementBenefitsPayableNumberOfMonthlyPayments", "terseLabel": "Defined Contribution Plan, Retirement Benefits Payable, Number of Monthly Payments" } } }, "localname": "DefinedContributionPlanRetirementBenefitsPayableNumberOfMonthlyPayments", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-13-benefit-plans-details-textual" ], "xbrltype": "integerItemType" }, "fxnc_DefinedContributionPlanServiceHoursRequiredByEligibleEmployeesToReceiveAdditionalContributions": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The number of hours of service required by eligible employees in order to receive additional contributions from the employer under the benefit plan.", "label": "fxnc_DefinedContributionPlanServiceHoursRequiredByEligibleEmployeesToReceiveAdditionalContributions", "terseLabel": "Defined Contribution Plan, Service Hours Required by Eligible Employees to Receive Additional Contributions" } } }, "localname": "DefinedContributionPlanServiceHoursRequiredByEligibleEmployeesToReceiveAdditionalContributions", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-13-benefit-plans-details-textual" ], "xbrltype": "integerItemType" }, "fxnc_DefinedContributionPlanStatedPercentageOfEmployeesContribution": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents state percentage of employees contribution for defined contribution plan.", "label": "fxnc_DefinedContributionPlanStatedPercentageOfEmployeesContribution", "terseLabel": "Defined Contribution Plan, Stated Percentage of Employees Contribution" } } }, "localname": "DefinedContributionPlanStatedPercentageOfEmployeesContribution", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-13-benefit-plans-details-textual" ], "xbrltype": "percentItemType" }, "fxnc_DemandDepositOverdraftsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents demand deposit overdrafts.", "label": "Demand Deposit Overdrafts [Member]" } } }, "localname": "DemandDepositOverdraftsMember", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-3-loans", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-details-textual" ], "xbrltype": "domainItemType" }, "fxnc_DepositRelatedParty": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of deposits from related parties held by the Bank.", "label": "fxnc_DepositRelatedParty", "terseLabel": "Deposit Related Party" } } }, "localname": "DepositRelatedParty", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-16-transactions-with-related-parties-details-textual" ], "xbrltype": "monetaryItemType" }, "fxnc_DerivativeCollateralObligationToReturnCashOrSecurities": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of obligation to return cash or securities collateral under master netting arrangements that have not been offset against derivative assets.", "label": "Interest rate swap contracts" } } }, "localname": "DerivativeCollateralObligationToReturnCashOrSecurities", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-derivative-instruments-components-details" ], "xbrltype": "monetaryItemType" }, "fxnc_DividendReinvestmentPlanTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for dividend reinvestment plan.", "label": "Dividend Reinvestment Plan [Text Block]" } } }, "localname": "DividendReinvestmentPlanTextBlock", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-18-dividend-reinvestment-plan" ], "xbrltype": "textBlockItemType" }, "fxnc_EffectiveIncomeTaxRateReconciliationBankOwnedLifeInsuranceIncomeAmount": { "auth_ref": [], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-income-tax-rate-reconciliation-details": { "order": 1.0, "parentTag": "us-gaap_IncomeTaxExpenseBenefit", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to bank owned life insurance income.", "label": "fxnc_EffectiveIncomeTaxRateReconciliationBankOwnedLifeInsuranceIncomeAmount", "negatedLabel": "Income from bank owned life insurance" } } }, "localname": "EffectiveIncomeTaxRateReconciliationBankOwnedLifeInsuranceIncomeAmount", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-income-tax-rate-reconciliation-details" ], "xbrltype": "monetaryItemType" }, "fxnc_FHLBLoansMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents information pertaining to loans from the Federal Home Loan Bank (FHLB).", "label": "FHLB Loans [Member]" } } }, "localname": "FHLBLoansMember", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-8-other-borrowings", "http://www.fbvirginia.com/20211231/role/statement-note-8-other-borrowings-details-textual" ], "xbrltype": "domainItemType" }, "fxnc_FeesForOtherCustomerServicesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents fees for customer services classified as other.", "label": "Fees for Other Customer Services [Member]" } } }, "localname": "FeesForOtherCustomerServicesMember", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-23-revenue-recognition-disaggregation-of-revenue-details" ], "xbrltype": "domainItemType" }, "fxnc_FinancingReceivableDeferredPayments": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Deferred amounts on loans receivable related to loan modification programs offered to financial institution customers affected by COVID-19.", "label": "fxnc_FinancingReceivableDeferredPayments", "terseLabel": "Financing Receivable, Deferred Payments" } } }, "localname": "FinancingReceivableDeferredPayments", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-details-textual" ], "xbrltype": "monetaryItemType" }, "fxnc_FinancingReceivableModificationsInterestOnlyPayments": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amounts of loans modified allowing interest only payments on loans receivable related to loan modification programs offered to financial institution customers affected by COVID-19.", "label": "fxnc_FinancingReceivableModificationsInterestOnlyPayments", "terseLabel": "Financing Receivable, Modifications, Interest Only Payments" } } }, "localname": "FinancingReceivableModificationsInterestOnlyPayments", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-details-textual" ], "xbrltype": "monetaryItemType" }, "fxnc_FinancingReceivableModificationsInterestOnlyPaymentsPeriod": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Period of interest only payments on loans receivable related to loan modification programs offered to financial institution customers affected by COVID-19.", "label": "fxnc_FinancingReceivableModificationsInterestOnlyPaymentsPeriod", "terseLabel": "Financing Receivable, Modifications, Interest Only Payments, Period (Month)" } } }, "localname": "FinancingReceivableModificationsInterestOnlyPaymentsPeriod", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-details-textual" ], "xbrltype": "durationItemType" }, "fxnc_FinancingReceivableNonaccrualLoansExcludedFromImpairedLoanDisclosure": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The carrying value of non-accrual loans excluded from impaired loan disclosure.", "label": "fxnc_FinancingReceivableNonaccrualLoansExcludedFromImpairedLoanDisclosure", "terseLabel": "Financing Receivable Non-accrual Loans Excluded from Impaired Loan Disclosure" } } }, "localname": "FinancingReceivableNonaccrualLoansExcludedFromImpairedLoanDisclosure", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-details-textual" ], "xbrltype": "monetaryItemType" }, "fxnc_FincastleAndSmartbankMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Information on the acquisition of Fincastle and the SmartBank.", "label": "Fincastle and SmartBank [Member]" } } }, "localname": "FincastleAndSmartbankMember", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies", "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-cash-flows-details" ], "xbrltype": "domainItemType" }, "fxnc_FirstNationalCorporation2014StockIncentivePlanMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Information pertaining to the First National Corporation 2014 Stock Incentive Plan.", "label": "First National Corporation 2014 Stock Incentive Plan [Member]" } } }, "localname": "FirstNationalCorporation2014StockIncentivePlanMember", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-", "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity", "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity-parentheticals", "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans", "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-details-textual" ], "xbrltype": "domainItemType" }, "fxnc_FirstNationalVAStatutoryTrustIIIMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Information pertaining to the First National (VA) Statutory Trust III.", "label": "First National (VA) Statutory Trust III [Member]" } } }, "localname": "FirstNationalVAStatutoryTrustIIIMember", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-10-junior-subordinated-debt", "http://www.fbvirginia.com/20211231/role/statement-note-10-junior-subordinated-debt-details-textual" ], "xbrltype": "domainItemType" }, "fxnc_FirstNationalVAStatutoryTrustIIMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Information pertaining to the First National (VA) Statutory Trust II.", "label": "First National (VA) Statutory Trust II [Member]" } } }, "localname": "FirstNationalVAStatutoryTrustIIMember", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-10-junior-subordinated-debt", "http://www.fbvirginia.com/20211231/role/statement-note-10-junior-subordinated-debt-details-textual" ], "xbrltype": "domainItemType" }, "fxnc_FundsRestrictionsAndReserveBalanceTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for funds restrictions and reserve balance.", "label": "Funds Restrictions and Reserve Balance [Text Block]" } } }, "localname": "FundsRestrictionsAndReserveBalanceTextBlock", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-12-funds-restrictions-and-reserve-balance" ], "xbrltype": "textBlockItemType" }, "fxnc_ImpairedLoansMeasurementInput": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Value of input used to measure impaired loans.", "label": "fxnc_ImpairedLoansMeasurementInput", "verboseLabel": "Measurement input" } } }, "localname": "ImpairedLoansMeasurementInput", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-quantitative-information-about-level-3-fair-value-measurements-details" ], "xbrltype": "decimalItemType" }, "fxnc_ImpairedLoansMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Information about loans which are impaired. A loan is considered impaired if it is probable that not all the related principal and interest payments will be collected.", "label": "Impaired Loans [Member]" } } }, "localname": "ImpairedLoansMember", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-assets-measured-at-fair-value-on-a-nonrecurring-basis-details", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-quantitative-information-about-level-3-fair-value-measurements-details" ], "xbrltype": "domainItemType" }, "fxnc_ImpairmentLossesRelatedToFederalHomeLoanStock": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of impairment losses related to Federal Home Loan Stock.", "label": "fxnc_ImpairmentLossesRelatedToFederalHomeLoanStock", "terseLabel": "Impairment Losses Related to Federal Home Loan Stock" } } }, "localname": "ImpairmentLossesRelatedToFederalHomeLoanStock", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-details-textual" ], "xbrltype": "monetaryItemType" }, "fxnc_IncreaseDecreaseInDemandDepositsAndSavingsAccounts": { "auth_ref": [], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-": { "order": 0.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The net cash inflow or outflow in the total of all demand deposits, including checking and negotiable order of withdrawal (NOW) accounts, and in savings accounts, classified as cash flows from financing activities.", "label": "Net increase in demand deposits and savings accounts" } } }, "localname": "IncreaseDecreaseInDemandDepositsAndSavingsAccounts", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-" ], "xbrltype": "monetaryItemType" }, "fxnc_InterestRateSwapOneMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents the first interest rate swap.", "label": "Interest Rate Swap One [Member]" } } }, "localname": "InterestRateSwapOneMember", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-", "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-details-textual" ], "xbrltype": "domainItemType" }, "fxnc_InterestRateSwapTwoMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents the second interest rate swap.", "label": "Interest Rate Swap Two [Member]" } } }, "localname": "InterestRateSwapTwoMember", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-", "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-details-textual" ], "xbrltype": "domainItemType" }, "fxnc_JuniorSubordinatedDebtFairValueDisclosure": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Fair value of junior subordinated debt which has a lower priority of repayment than subordinated debt in the event the company falls into liquidation or bankruptcy.", "label": "fxnc_JuniorSubordinatedDebtFairValueDisclosure", "verboseLabel": "Junior subordinated debt" } } }, "localname": "JuniorSubordinatedDebtFairValueDisclosure", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-carrying-values-and-estimated-values-of-financial-instruments-details" ], "xbrltype": "monetaryItemType" }, "fxnc_LeasesWithOptionToExtendTheLeaseMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents leases which have an option to extend the lease.", "label": "Leases With Option to Extend the Lease [Member]" } } }, "localname": "LeasesWithOptionToExtendTheLeaseMember", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments", "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-details-textual" ], "xbrltype": "domainItemType" }, "fxnc_LoansAcquiredInBusinessCombinationTableTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of loans acquired in a business combination.", "label": "Loans Acquired in Business Combination [Table Text Block]" } } }, "localname": "LoansAcquiredInBusinessCombinationTableTextBlock", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-tables" ], "xbrltype": "textBlockItemType" }, "fxnc_LoansHeldForSaleMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Information about loans held for sale.", "label": "Loans Held for Sale [Member]" } } }, "localname": "LoansHeldForSaleMember", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-details-textual" ], "xbrltype": "domainItemType" }, "fxnc_ManagementFeePaidToSubsidiaries": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of management fee paid to subsidiaries.", "label": "fxnc_ManagementFeePaidToSubsidiaries", "verboseLabel": "Management fee-subsidiary" } } }, "localname": "ManagementFeePaidToSubsidiaries", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-income-details" ], "xbrltype": "monetaryItemType" }, "fxnc_MaturingInFirstAndSecondQuartersOf2026Member": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents maturing in the first and second quarters of 2026.", "label": "Maturing in First and Second Quarters of 2026 [Member]" } } }, "localname": "MaturingInFirstAndSecondQuartersOf2026Member", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies", "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual" ], "xbrltype": "domainItemType" }, "fxnc_MaturingInSecondAndThirdQuartersOf2022Member": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents maturing in the second and third quarters of 2022.", "label": "Maturing in Second and Third Quarters of 2022 [Member]" } } }, "localname": "MaturingInSecondAndThirdQuartersOf2022Member", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies", "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual" ], "xbrltype": "domainItemType" }, "fxnc_MergerRelatedExpensesNetOfTaxMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents merger related expenses.", "label": "Merger Related Expenses, Net of Tax [Member]" } } }, "localname": "MergerRelatedExpensesNetOfTaxMember", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-details-textual" ], "xbrltype": "domainItemType" }, "fxnc_NetIncomeLossFromContinuingOperationBeforeMinorityInterestAndIncomeLossFromEquityMethodInvestments": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of income (loss) from continuing operation before minority interest and income (loss) from equity method investments.", "label": "fxnc_NetIncomeLossFromContinuingOperationBeforeMinorityInterestAndIncomeLossFromEquityMethodInvestments", "verboseLabel": "Income before equity in undistributed income of subsidiary" } } }, "localname": "NetIncomeLossFromContinuingOperationBeforeMinorityInterestAndIncomeLossFromEquityMethodInvestments", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-income-details" ], "xbrltype": "monetaryItemType" }, "fxnc_NoninterestIncomeExcludingRevenueFromContactWithCustomer": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The total amount of noninterest income which falls out-of-scope of Topic 606.", "label": "fxnc_NoninterestIncomeExcludingRevenueFromContactWithCustomer", "terseLabel": "Noninterest income (out-of-scope of Topic 606)" } } }, "localname": "NoninterestIncomeExcludingRevenueFromContactWithCustomer", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-23-revenue-recognition-disaggregation-of-revenue-details" ], "xbrltype": "monetaryItemType" }, "fxnc_NoteToFinancialStatementDetailsTextual": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note To Financial Statement Details Textual" } } }, "localname": "NoteToFinancialStatementDetailsTextual", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_NotesToFinancialStatementsAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Notes To Financial Statements [Abstract]" } } }, "localname": "NotesToFinancialStatementsAbstract", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_NumberOfLeases": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents the number of leases.", "label": "fxnc_NumberOfLeases", "terseLabel": "Number of Leases" } } }, "localname": "NumberOfLeases", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-details-textual" ], "xbrltype": "integerItemType" }, "fxnc_OtherBorrowingsTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The disclosure for borrowings classified as other.", "label": "Other Borrowings [Text Block]" } } }, "localname": "OtherBorrowingsTextBlock", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-8-other-borrowings" ], "xbrltype": "textBlockItemType" }, "fxnc_OtherRealEstateGross": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Gross amount of other real estate not separately disclosed.", "label": "fxnc_OtherRealEstateGross", "periodEndLabel": "Balance, gross", "periodStartLabel": "Balance, gross" } } }, "localname": "OtherRealEstateGross", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned-changes-in-balance-for-oreo-details" ], "xbrltype": "monetaryItemType" }, "fxnc_OtherRealEstateLoansMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Information about real estate loans classified as other.", "label": "Other Real Estate Loans [Member]" } } }, "localname": "OtherRealEstateLoansMember", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-analysis-of-the-credit-risk-profile-of-each-loan-class-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-loans-acquired-in-business-combinations-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loan-classes-and-an-aging-of-past-due-loans-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loans-details", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-allowance-by-impairment-methodology-and-loans-by-impairment-methodology-details", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-impaired-loans-and-related-allowances-details" ], "xbrltype": "domainItemType" }, "fxnc_OtherRealEstateOwnedExpenses": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Expenses related to other real estate owned.", "label": "fxnc_OtherRealEstateOwnedExpenses", "terseLabel": "Other Real Estate Owned, Expenses" } } }, "localname": "OtherRealEstateOwnedExpenses", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned-details-textual" ], "xbrltype": "monetaryItemType" }, "fxnc_PercentageOfAssetsMaximumBorrowingCapacityFromFHLB": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The percentage of the banks' total assets which may be borrowed from the Federal Home Loan Bank of Atlanta.", "label": "fxnc_PercentageOfAssetsMaximumBorrowingCapacityFromFHLB", "terseLabel": "Percentage of Assets, Maximum Borrowing Capacity from FHLB" } } }, "localname": "PercentageOfAssetsMaximumBorrowingCapacityFromFHLB", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-8-other-borrowings-details-textual" ], "xbrltype": "percentItemType" }, "fxnc_PremisesAndEquipmentMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents the information pertaining to the premises and equipment.", "label": "Premises and Equipment [Member]" } } }, "localname": "PremisesAndEquipmentMember", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies", "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual" ], "xbrltype": "domainItemType" }, "fxnc_ProceedsPaymentsFromRestrictedInvestments": { "auth_ref": [], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-": { "order": 0.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The cash inflow (outflow) from redemption (purchase) of restricted investments.", "label": "Net redemption (purchase) of restricted securities" } } }, "localname": "ProceedsPaymentsFromRestrictedInvestments", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-" ], "xbrltype": "monetaryItemType" }, "fxnc_QuotedPricesPrecedingDividendPaymentDatePeriod": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Number of consecutive trading days for purchase of common share.", "label": "fxnc_QuotedPricesPrecedingDividendPaymentDatePeriod", "terseLabel": "Quoted Prices Preceding Dividend Payment Date Period (Day)" } } }, "localname": "QuotedPricesPrecedingDividendPaymentDatePeriod", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-18-dividend-reinvestment-plan-details-textual" ], "xbrltype": "durationItemType" }, "fxnc_RealEstate1Member": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents information pertaining to real estate.", "label": "Real Estate 1 [Member]" } } }, "localname": "RealEstate1Member", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-analysis-of-the-credit-risk-profile-of-each-loan-class-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-loans-acquired-in-business-combinations-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loan-classes-and-an-aging-of-past-due-loans-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loans-details", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-allowance-by-impairment-methodology-and-loans-by-impairment-methodology-details", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-impaired-loans-and-related-allowances-details" ], "xbrltype": "domainItemType" }, "fxnc_RealEstateAndBuildingFormerlyUsedAsBankPremisesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents real estate and buildings formerly used as bank premises.", "label": "Real Estate and Building Formerly Used as Bank Premises [Member]" } } }, "localname": "RealEstateAndBuildingFormerlyUsedAsBankPremisesMember", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned", "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned-details-textual" ], "xbrltype": "domainItemType" }, "fxnc_ResidentialRealEstatePropertiesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents residential real estate properties.", "label": "Residential Real Estate Properties [Member]" } } }, "localname": "ResidentialRealEstatePropertiesMember", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned", "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned-details-textual" ], "xbrltype": "domainItemType" }, "fxnc_RisksAndUncertaintiesPolicyTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Disclosure of risks and uncertainties.", "label": "Risks and Uncertainties [Policy Text Block]" } } }, "localname": "RisksAndUncertaintiesPolicyTextBlock", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-significant-accounting-policies-policies" ], "xbrltype": "textBlockItemType" }, "fxnc_SBACARESActPaycheckProtectionProgramMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Information related to The Paycheck Protection Program established by the CARES Act and implemented by the Small Business Administration.", "label": "SBA CARES Act Paycheck Protection Program [Member]" } } }, "localname": "SBACARESActPaycheckProtectionProgramMember", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies", "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual" ], "xbrltype": "domainItemType" }, "fxnc_ScheduleOfAvailableforsaleAndHeldtomaturityReconciliationTableTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The tabular disclosure of amortized costs, unrealized gains (losses), and fair values of available-for-sale and held-to-maturity securities.", "label": "Schedule of Available-for-sale and Held-to-maturity Reconciliation [Table Text Block]" } } }, "localname": "ScheduleOfAvailableforsaleAndHeldtomaturityReconciliationTableTextBlock", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-tables" ], "xbrltype": "textBlockItemType" }, "fxnc_SecuredByMultifamilyResidentialPropertiesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Information about loans secured by multi-family residential properties.", "label": "Secured by Multi-family Residential Properties [Member]" } } }, "localname": "SecuredByMultifamilyResidentialPropertiesMember", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-analysis-of-the-credit-risk-profile-of-each-loan-class-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-loans-acquired-in-business-combinations-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loan-classes-and-an-aging-of-past-due-loans-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loans-details", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-allowance-by-impairment-methodology-and-loans-by-impairment-methodology-details", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-impaired-loans-and-related-allowances-details" ], "xbrltype": "domainItemType" }, "fxnc_ServiceChargesOnDepositAccountsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents service charges on deposit accounts.", "label": "Service Charges on Deposit Accounts [Member]" } } }, "localname": "ServiceChargesOnDepositAccountsMember", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-23-revenue-recognition-disaggregation-of-revenue-details" ], "xbrltype": "domainItemType" }, "fxnc_SmartbankMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents Smartbank.", "label": "Smartbank [Member]" } } }, "localname": "SmartbankMember", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-", "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies", "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-details-textual" ], "xbrltype": "domainItemType" }, "fxnc_StockRepurchasePlanMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents the stock repurchase plan.", "label": "Stock Repurchase Plan [Member]" } } }, "localname": "StockRepurchasePlanMember", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-", "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity", "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity-parentheticals" ], "xbrltype": "domainItemType" }, "fxnc_SubordinatedDebtFairValueDisclosure": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Fair value of subordinated debt obligations.", "label": "fxnc_SubordinatedDebtFairValueDisclosure", "verboseLabel": "Subordinated debt" } } }, "localname": "SubordinatedDebtFairValueDisclosure", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-carrying-values-and-estimated-values-of-financial-instruments-details" ], "xbrltype": "monetaryItemType" }, "fxnc_SubordinatedLoanAgreementNoteMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Information pertaining to the subordinated term note issued under the Subordinated Loan Agreement.", "label": "Subordinated Loan Agreement Note [Member]" } } }, "localname": "SubordinatedLoanAgreementNoteMember", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-26-subsequent-events-", "http://www.fbvirginia.com/20211231/role/statement-note-26-subsequent-events-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-9-subordinated-debt-", "http://www.fbvirginia.com/20211231/role/statement-note-9-subordinated-debt-details-textual" ], "xbrltype": "domainItemType" }, "fxnc_SubordinatedTermNoteDue2030Member": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Information pertaining to the subordinated term note due in 2030.", "label": "Subordinated Term Note Due 2030 [Member]" } } }, "localname": "SubordinatedTermNoteDue2030Member", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-9-subordinated-debt-", "http://www.fbvirginia.com/20211231/role/statement-note-9-subordinated-debt-details-textual" ], "xbrltype": "domainItemType" }, "fxnc_TDRLoansMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Information related to TDR loans.", "label": "TDR Loans [Member]" } } }, "localname": "TDRLoansMember", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-details-textual" ], "xbrltype": "domainItemType" }, "fxnc_The401KPlanMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents information pertaining to the 401(k) plan.", "label": "The 401(k) Plan [Member]" } } }, "localname": "The401KPlanMember", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-13-benefit-plans", "http://www.fbvirginia.com/20211231/role/statement-note-13-benefit-plans-details-textual" ], "xbrltype": "domainItemType" }, "fxnc_TheBankOfFincastleMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents The Bank of Fincastle.", "label": "The Bank of Fincastle [Member]" } } }, "localname": "TheBankOfFincastleMember", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-", "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies", "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-16-transactions-with-related-parties", "http://www.fbvirginia.com/20211231/role/statement-note-16-transactions-with-related-parties-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned", "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned-details-textual" ], "xbrltype": "domainItemType" }, "fxnc_USAgencyAndMortgagebackedSecuritiesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Information pertaining to securities backed by US agencies and mortgages.", "label": "US Agency and Mortgage-backed Securities [Member]" } } }, "localname": "USAgencyAndMortgagebackedSecuritiesMember", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-balances-of-assets-measured-at-fair-value-on-recurring-basis-details", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-investments-in-an-unrealized-loss-position-that-were-temporarily-impaired-details", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-summary-of-amortized-costs-and-fair-values-of-securities-details" ], "xbrltype": "domainItemType" }, "fxnc_UnsecuredLineOfCreditMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents unsecured lines of credit.", "label": "Unsecured Line of Credit [Member]" } } }, "localname": "UnsecuredLineOfCreditMember", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-8-other-borrowings", "http://www.fbvirginia.com/20211231/role/statement-note-8-other-borrowings-details-textual" ], "xbrltype": "domainItemType" }, "fxnc_ValuationTechniquePropertyAppraisalsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Valuation technique calculating property appraisals.", "label": "Valuation Technique, Property Appraisals [Member]" } } }, "localname": "ValuationTechniquePropertyAppraisalsMember", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-quantitative-information-about-level-3-fair-value-measurements-details" ], "xbrltype": "domainItemType" }, "fxnc_VestingImmediatelyMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents share-based compensation awards which vest immediately upon grant.", "label": "Vesting Immediately [Member]" } } }, "localname": "VestingImmediatelyMember", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans", "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-details-textual" ], "xbrltype": "domainItemType" }, "fxnc_VestingOnFebruary23EachYearMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents awards under share-based payment arrangement vesting period.", "label": "Vesting on February 23 Each Year [Member]" } } }, "localname": "VestingOnFebruary23EachYearMember", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans", "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-details-textual" ], "xbrltype": "domainItemType" }, "fxnc_VestingOnFifthAnniversaryOfGrantDateMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents the awards are vesting on fifth anniversary of the grant date.", "label": "Vesting on Fifth Anniversary of Grant Date [Member]" } } }, "localname": "VestingOnFifthAnniversaryOfGrantDateMember", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans", "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-details-textual" ], "xbrltype": "domainItemType" }, "fxnc_VestingOnThirdAnniversaryOfGrantDateMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents awards under share-based payment arrangement vesting period.", "label": "Vesting on Third Anniversary of Grant Date [Member]" } } }, "localname": "VestingOnThirdAnniversaryOfGrantDateMember", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans", "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-details-textual" ], "xbrltype": "domainItemType" }, "fxnc_VestingOneHalfEachYearForTwoYearsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents share-based compensation awards of which one half will vest in each year on the grant date anniversary over a two year period.", "label": "Vesting One Half Each Year for Two Years [Member]" } } }, "localname": "VestingOneHalfEachYearForTwoYearsMember", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans", "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-details-textual" ], "xbrltype": "domainItemType" }, "fxnc_WealthManagementFeesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents wealth management fees.", "label": "Wealth Management Fees [Member]" } } }, "localname": "WealthManagementFeesMember", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-23-revenue-recognition-disaggregation-of-revenue-details" ], "xbrltype": "domainItemType" }, "fxnc_WeightedAverageRepricingTerm": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The weighted average period of time between re-pricing of the portfolio.", "label": "fxnc_WeightedAverageRepricingTerm", "terseLabel": "Weighted Average Re-pricing Term (Year)" } } }, "localname": "WeightedAverageRepricingTerm", "nsuri": "http://www.fbvirginia.com/20211231", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-details-textual" ], "xbrltype": "durationItemType" }, "fxnc_statement-statement-note-11-income-taxes-income-tax-expense-details": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 11 - Income Taxes - Income Tax Expense (Details)" } } }, "localname": "statement-statement-note-11-income-taxes-income-tax-expense-details", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-11-income-taxes-income-tax-rate-reconciliation-details": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 11 - Income Taxes - Income Tax Rate Reconciliation (Details)" } } }, "localname": "statement-statement-note-11-income-taxes-income-tax-rate-reconciliation-details", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-11-income-taxes-net-deferred-tax-assets-details": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 11 - Income Taxes - Net Deferred Tax Assets (Details)" } } }, "localname": "statement-statement-note-11-income-taxes-net-deferred-tax-assets-details", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-11-income-taxes-tables": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 11 - Income Taxes" } } }, "localname": "statement-statement-note-11-income-taxes-tables", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-14-earnings-per-common-share-basic-and-diluted-earnings-per-share-details": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 14 - Earnings Per Common Share - Basic and Diluted Earnings Per Share (Details)" } } }, "localname": "statement-statement-note-14-earnings-per-common-share-basic-and-diluted-earnings-per-share-details", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-14-earnings-per-common-share-tables": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 14 - Earnings Per Common Share" } } }, "localname": "statement-statement-note-14-earnings-per-common-share-tables", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-15-commitments-and-unfunded-credits-financial-instruments-representing-credit-risk-details": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 15 - Commitments and Unfunded Credits - Financial Instruments Representing Credit Risk (Details)" } } }, "localname": "statement-statement-note-15-commitments-and-unfunded-credits-financial-instruments-representing-credit-risk-details", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-15-commitments-and-unfunded-credits-tables": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 15 - Commitments and Unfunded Credits" } } }, "localname": "statement-statement-note-15-commitments-and-unfunded-credits-tables", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-17-lease-commitments-operating-lease-rightofuse-asset-and-operating-lease-liability-details": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 17 - Lease Commitments - Operating Lease Right-of-use Asset and Operating Lease Liability (Details)" } } }, "localname": "statement-statement-note-17-lease-commitments-operating-lease-rightofuse-asset-and-operating-lease-liability-details", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-17-lease-commitments-schedule-of-lease-cost-and-additional-information-related-to-operating-leases-details": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 17 - Lease Commitments - Schedule of Lease Cost and Additional Information Related to Operating Leases (Details)" } } }, "localname": "statement-statement-note-17-lease-commitments-schedule-of-lease-cost-and-additional-information-related-to-operating-leases-details", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-17-lease-commitments-schedule-of-undiscounted-cash-flows-that-contribute-to-the-operating-lease-liability-details": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 17 - Lease Commitments - Schedule of Undiscounted Cash Flows that Contribute to the Operating Lease Liability (Details)" } } }, "localname": "statement-statement-note-17-lease-commitments-schedule-of-undiscounted-cash-flows-that-contribute-to-the-operating-lease-liability-details", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-17-lease-commitments-tables": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 17 - Lease Commitments" } } }, "localname": "statement-statement-note-17-lease-commitments-tables", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-19-fair-value-measurements-assets-measured-at-fair-value-on-a-nonrecurring-basis-details": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 19 - Fair Value Measurements - Assets Measured at Fair Value on a Nonrecurring Basis (Details)" } } }, "localname": "statement-statement-note-19-fair-value-measurements-assets-measured-at-fair-value-on-a-nonrecurring-basis-details", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-19-fair-value-measurements-balances-of-assets-measured-at-fair-value-on-recurring-basis-details": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 19 - Fair Value Measurements - Balances of Assets Measured at Fair Value on Recurring Basis (Details)" } } }, "localname": "statement-statement-note-19-fair-value-measurements-balances-of-assets-measured-at-fair-value-on-recurring-basis-details", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-19-fair-value-measurements-carrying-values-and-estimated-values-of-financial-instruments-details": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 19 - Fair Value Measurements - Carrying Values and Estimated Values of Financial Instruments (Details)" } } }, "localname": "statement-statement-note-19-fair-value-measurements-carrying-values-and-estimated-values-of-financial-instruments-details", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-19-fair-value-measurements-quantitative-information-about-level-3-fair-value-measurements-details": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 19 - Fair Value Measurements - Quantitative Information About Level 3 Fair Value Measurements (Details)" } } }, "localname": "statement-statement-note-19-fair-value-measurements-quantitative-information-about-level-3-fair-value-measurements-details", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-19-fair-value-measurements-tables": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 19 - Fair Value Measurements" } } }, "localname": "statement-statement-note-19-fair-value-measurements-tables", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-2-securities-amortized-cost-and-fair-value-of-securities-details": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 2 - Securities - Amortized Cost and Fair Value of Securities (Details)" } } }, "localname": "statement-statement-note-2-securities-amortized-cost-and-fair-value-of-securities-details", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-2-securities-composition-of-restricted-securities-details": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 2 - Securities - Composition of Restricted Securities (Details)" } } }, "localname": "statement-statement-note-2-securities-composition-of-restricted-securities-details", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-2-securities-investments-in-an-unrealized-loss-position-that-were-temporarily-impaired-details": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 2 - Securities - Investments in an Unrealized Loss Position That Were Temporarily Impaired (Details)" } } }, "localname": "statement-statement-note-2-securities-investments-in-an-unrealized-loss-position-that-were-temporarily-impaired-details", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-2-securities-summary-of-amortized-costs-and-fair-values-of-securities-details": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 2 - Securities - Summary of Amortized Costs and Fair Values of Securities (Details)" } } }, "localname": "statement-statement-note-2-securities-summary-of-amortized-costs-and-fair-values-of-securities-details", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-2-securities-tables": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 2 - Securities" } } }, "localname": "statement-statement-note-2-securities-tables", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-20-regulatory-matters-comparison-of-capital-of-company-and-bank-with-minimum-regulatory-guidelines-details": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 20 - Regulatory Matters - Comparison of Capital of Company and Bank with Minimum Regulatory Guidelines (Details)" } } }, "localname": "statement-statement-note-20-regulatory-matters-comparison-of-capital-of-company-and-bank-with-minimum-regulatory-guidelines-details", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-20-regulatory-matters-tables": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 20 - Regulatory Matters" } } }, "localname": "statement-statement-note-20-regulatory-matters-tables", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-21-accumulated-other-comprehensive-income-loss-changes-in-each-component-of-accumulated-other-comprehensive-income-loss-details": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 21 - Accumulated Other Comprehensive Income (Loss) - Changes in Each Component of Accumulated Other Comprehensive Income (Loss) (Details)" } } }, "localname": "statement-statement-note-21-accumulated-other-comprehensive-income-loss-changes-in-each-component-of-accumulated-other-comprehensive-income-loss-details", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-21-accumulated-other-comprehensive-income-loss-changes-in-each-component-of-accumulated-other-comprehensive-income-loss-details-parentheticals": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 21 - Accumulated Other Comprehensive Income (Loss) - Changes in Each Component of Accumulated Other Comprehensive Income (Loss) (Details) (Parentheticals)" } } }, "localname": "statement-statement-note-21-accumulated-other-comprehensive-income-loss-changes-in-each-component-of-accumulated-other-comprehensive-income-loss-details-parentheticals", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-21-accumulated-other-comprehensive-income-loss-reclassifications-from-accumulated-other-comprehensive-loss-details": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 21 - Accumulated Other Comprehensive Income (Loss) - Reclassifications from Accumulated Other Comprehensive Loss (Details)" } } }, "localname": "statement-statement-note-21-accumulated-other-comprehensive-income-loss-reclassifications-from-accumulated-other-comprehensive-loss-details", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-21-accumulated-other-comprehensive-income-loss-tables": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 21 - Accumulated Other Comprehensive Income (Loss)" } } }, "localname": "statement-statement-note-21-accumulated-other-comprehensive-income-loss-tables", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-22-stock-compensation-plans-summary-of-restricted-stock-unit-activity-details": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 22 - Stock Compensation Plans - Summary of Restricted Stock Unit Activity (Details)" } } }, "localname": "statement-statement-note-22-stock-compensation-plans-summary-of-restricted-stock-unit-activity-details", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-22-stock-compensation-plans-tables": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 22 - Stock Compensation Plans" } } }, "localname": "statement-statement-note-22-stock-compensation-plans-tables", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-23-revenue-recognition-disaggregation-of-revenue-details": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 23 - Revenue Recognition - Disaggregation of Revenue (Details)" } } }, "localname": "statement-statement-note-23-revenue-recognition-disaggregation-of-revenue-details", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-23-revenue-recognition-tables": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 23 - Revenue Recognition" } } }, "localname": "statement-statement-note-23-revenue-recognition-tables", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-24-derivative-financial-instruments-derivative-instruments-components-details": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 24 - Derivative Financial Instruments - Derivative Instruments Components (Details)" } } }, "localname": "statement-statement-note-24-derivative-financial-instruments-derivative-instruments-components-details", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-24-derivative-financial-instruments-tables": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 24 - Derivative Financial Instruments" } } }, "localname": "statement-statement-note-24-derivative-financial-instruments-tables", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 25 - Acquisitions - Consideration Paid and the Assets Acquired and Liabilities Assumed (Details)" } } }, "localname": "statement-statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-25-acquisitions-tables": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 25 - Acquisitions" } } }, "localname": "statement-statement-note-25-acquisitions-tables", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-25-acquisitions-unaudited-pro-forma-amounts-details": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 25 - Acquisitions - Unaudited Pro Forma Amounts (Details)" } } }, "localname": "statement-statement-note-25-acquisitions-unaudited-pro-forma-amounts-details", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-27-parent-company-only-financial-statements-balance-sheet-details": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 27 - Parent Company Only Financial Statements - Balance Sheet (Details)" } } }, "localname": "statement-statement-note-27-parent-company-only-financial-statements-balance-sheet-details", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-27-parent-company-only-financial-statements-statements-of-cash-flows-details": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 27 - Parent Company Only Financial Statements - Statements of Cash Flows (Details)" } } }, "localname": "statement-statement-note-27-parent-company-only-financial-statements-statements-of-cash-flows-details", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-27-parent-company-only-financial-statements-statements-of-income-details": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 27 - Parent Company Only Financial Statements - Statements of Income (Details)" } } }, "localname": "statement-statement-note-27-parent-company-only-financial-statements-statements-of-income-details", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-27-parent-company-only-financial-statements-tables": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 27 - Parent Company Only Financial Statements" } } }, "localname": "statement-statement-note-27-parent-company-only-financial-statements-tables", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-3-loans-analysis-of-the-credit-risk-profile-of-each-loan-class-details": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 3 - Loans - Analysis of the Credit Risk Profile of Each Loan Class (Details)" } } }, "localname": "statement-statement-note-3-loans-analysis-of-the-credit-risk-profile-of-each-loan-class-details", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-3-loans-loans-acquired-in-business-combinations-details": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 3 - Loans - Loans Acquired in Business Combinations (Details)" } } }, "localname": "statement-statement-note-3-loans-loans-acquired-in-business-combinations-details", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-3-loans-summary-of-loan-classes-and-an-aging-of-past-due-loans-details": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 3 - Loans - Summary of Loan Classes and an Aging of Past Due Loans (Details)" } } }, "localname": "statement-statement-note-3-loans-summary-of-loan-classes-and-an-aging-of-past-due-loans-details", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-3-loans-summary-of-loans-details": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 3 - Loans - Summary of Loans (Details)" } } }, "localname": "statement-statement-note-3-loans-summary-of-loans-details", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-3-loans-tables": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 3 - Loans" } } }, "localname": "statement-statement-note-3-loans-tables", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-4-allowance-for-loan-losses-allowance-by-impairment-methodology-and-loans-by-impairment-methodology-details": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 4 - Allowance for Loan Losses - Allowance by Impairment Methodology and Loans by Impairment Methodology (Details)" } } }, "localname": "statement-statement-note-4-allowance-for-loan-losses-allowance-by-impairment-methodology-and-loans-by-impairment-methodology-details", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-4-allowance-for-loan-losses-impaired-loans-and-related-allowances-details": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 4 - Allowance for Loan Losses - Impaired Loans and Related Allowances (Details)" } } }, "localname": "statement-statement-note-4-allowance-for-loan-losses-impaired-loans-and-related-allowances-details", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-4-allowance-for-loan-losses-tables": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 4 - Allowance for Loan Losses" } } }, "localname": "statement-statement-note-4-allowance-for-loan-losses-tables", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-5-other-real-estate-owned-changes-in-balance-for-oreo-details": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 5 - Other Real Estate Owned - Changes in Balance for OREO (Details)" } } }, "localname": "statement-statement-note-5-other-real-estate-owned-changes-in-balance-for-oreo-details", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-5-other-real-estate-owned-tables": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 5 - Other Real Estate Owned" } } }, "localname": "statement-statement-note-5-other-real-estate-owned-tables", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-6-premises-and-equipment-premises-and-equipment-details": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 6 - Premises and Equipment - Premises and Equipment (Details)" } } }, "localname": "statement-statement-note-6-premises-and-equipment-premises-and-equipment-details", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-6-premises-and-equipment-tables": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 6 - Premises and Equipment" } } }, "localname": "statement-statement-note-6-premises-and-equipment-tables", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-7-deposits-scheduled-maturities-of-time-deposits-details": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 7 - Deposits - Scheduled Maturities of Time Deposits (Details)" } } }, "localname": "statement-statement-note-7-deposits-scheduled-maturities-of-time-deposits-details", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-note-7-deposits-tables": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Note 7 - Deposits" } } }, "localname": "statement-statement-note-7-deposits-tables", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "fxnc_statement-statement-significant-accounting-policies-policies": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Significant Accounting Policies" } } }, "localname": "statement-statement-significant-accounting-policies-policies", "nsuri": "http://www.fbvirginia.com/20211231", "xbrltype": "stringItemType" }, "srt_ConsolidatedEntitiesAxis": { "auth_ref": [ "r114", "r326", "r330", "r335", "r555", "r556", "r560", "r561", "r640", "r832", "r862", "r872", "r873", "r874" ], "lang": { "en-us": { "role": { "documentation": "Information by consolidated entity or group of entities.", "label": "Consolidated Entities [Axis]" } } }, "localname": "ConsolidatedEntitiesAxis", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-balance-sheet-details", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-cash-flows-details", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-income-details" ], "xbrltype": "stringItemType" }, "srt_ConsolidatedEntitiesDomain": { "auth_ref": [ "r114", "r326", "r330", "r335", "r555", "r556", "r560", "r561", "r640", "r832", "r862", "r872", "r873", "r874" ], "lang": { "en-us": { "role": { "documentation": "Entity or group of entities consolidated into reporting entity.", "label": "Consolidated Entities [Domain]" } } }, "localname": "ConsolidatedEntitiesDomain", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-balance-sheet-details", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-cash-flows-details", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-income-details" ], "xbrltype": "domainItemType" }, "srt_MaximumMember": { "auth_ref": [ "r340", "r372", "r469", "r475", "r654", "r655", "r656", "r659", "r660", "r661", "r682", "r785", "r787", "r833", "r834" ], "lang": { "en-us": { "role": { "documentation": "Upper limit of the provided range.", "label": "Maximum [Member]" } } }, "localname": "MaximumMember", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies", "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-13-benefit-plans", "http://www.fbvirginia.com/20211231/role/statement-note-13-benefit-plans-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-details-textual" ], "xbrltype": "domainItemType" }, "srt_MinimumMember": { "auth_ref": [ "r340", "r372", "r469", "r475", "r654", "r655", "r656", "r659", "r660", "r661", "r682", "r785", "r787", "r833", "r834" ], "lang": { "en-us": { "role": { "documentation": "Lower limit of the provided range.", "label": "Minimum [Member]" } } }, "localname": "MinimumMember", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies", "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-13-benefit-plans", "http://www.fbvirginia.com/20211231/role/statement-note-13-benefit-plans-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-details-textual" ], "xbrltype": "domainItemType" }, "srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis": { "auth_ref": [ "r815", "r823", "r824", "r825", "r826", "r827", "r828", "r829", "r830", "r831", "r861", "r863" ], "lang": { "en-us": { "role": { "documentation": "Information by type of real estate property.", "label": "Real Estate, Type of Property [Axis]" } } }, "localname": "MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned", "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned-details-textual" ], "xbrltype": "stringItemType" }, "srt_MortgageLoansOnRealEstateNamePropertyTypeDomain": { "auth_ref": [ "r823", "r824", "r825", "r826", "r827", "r828", "r829", "r830", "r831", "r861", "r864", "r865", "r866", "r867", "r868", "r869", "r870", "r871" ], "lang": { "en-us": { "role": { "documentation": "Land and any structures permanently fixed to it.", "label": "Real Estate [Domain]" } } }, "localname": "MortgageLoansOnRealEstateNamePropertyTypeDomain", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned", "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned-details-textual" ], "xbrltype": "domainItemType" }, "srt_ParentCompanyMember": { "auth_ref": [ "r114" ], "lang": { "en-us": { "role": { "documentation": "The registrant that controls, directly or indirectly, another entity (or entities). The usual condition for control is ownership of a majority (over 50%) of the outstanding voting stock. The power to control may also exist with a lesser percentage of ownership, for example, by contract, lease, agreement with other stockholders or by court decree.", "label": "Parent Company [Member]" } } }, "localname": "ParentCompanyMember", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-balance-sheet-details", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-cash-flows-details", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-income-details" ], "xbrltype": "domainItemType" }, "srt_ProductOrServiceAxis": { "auth_ref": [ "r172", "r385", "r387", "r686", "r784", "r786" ], "lang": { "en-us": { "role": { "documentation": "Information by product and service, or group of similar products and similar services.", "label": "Product and Service [Axis]" } } }, "localname": "ProductOrServiceAxis", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income", "http://www.fbvirginia.com/20211231/role/statement-note-23-revenue-recognition-disaggregation-of-revenue-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-details-textual" ], "xbrltype": "stringItemType" }, "srt_ProductsAndServicesDomain": { "auth_ref": [ "r172", "r385", "r387", "r686", "r784", "r786" ], "lang": { "en-us": { "role": { "documentation": "Product or service, or a group of similar products or similar services.", "label": "Product and Service [Domain]" } } }, "localname": "ProductsAndServicesDomain", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income", "http://www.fbvirginia.com/20211231/role/statement-note-23-revenue-recognition-disaggregation-of-revenue-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-details-textual" ], "xbrltype": "domainItemType" }, "srt_RangeAxis": { "auth_ref": [ "r340", "r372", "r413", "r469", "r475", "r654", "r655", "r656", "r659", "r660", "r661", "r682", "r785", "r787", "r833", "r834" ], "lang": { "en-us": { "role": { "documentation": "Information by statistical measurement. Includes, but is not limited to, minimum, maximum, weighted average, arithmetic average, and median.", "label": "Statistical Measurement [Axis]" } } }, "localname": "RangeAxis", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies", "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-13-benefit-plans", "http://www.fbvirginia.com/20211231/role/statement-note-13-benefit-plans-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-details-textual" ], "xbrltype": "stringItemType" }, "srt_RangeMember": { "auth_ref": [ "r340", "r372", "r413", "r469", "r475", "r654", "r655", "r656", "r659", "r660", "r661", "r682", "r785", "r787", "r833", "r834" ], "lang": { "en-us": { "role": { "documentation": "Statistical measurement. Includes, but is not limited to, minimum, maximum, weighted average, arithmetic average, and median.", "label": "Statistical Measurement [Domain]" } } }, "localname": "RangeMember", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies", "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-13-benefit-plans", "http://www.fbvirginia.com/20211231/role/statement-note-13-benefit-plans-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-details-textual" ], "xbrltype": "domainItemType" }, "srt_ScenarioForecastMember": { "auth_ref": [ "r124", "r470", "r860" ], "lang": { "en-us": { "role": { "documentation": "Information reported for future period. Excludes information expected to be reported in future period for effect on historical fact.", "label": "Forecast [Member]" } } }, "localname": "ScenarioForecastMember", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-details-textual" ], "xbrltype": "domainItemType" }, "srt_ScenarioUnspecifiedDomain": { "auth_ref": [ "r124", "r129", "r470" ], "lang": { "en-us": { "role": { "documentation": "Scenario reported, distinguishing information from actual fact. Includes, but is not limited to, pro forma and forecast. Excludes actual facts.", "label": "Scenario [Domain]" } } }, "localname": "ScenarioUnspecifiedDomain", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies", "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-details-textual" ], "xbrltype": "domainItemType" }, "srt_ScheduleOfCondensedBalanceSheetTableTextBlock": { "auth_ref": [ "r875" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of condensed balance sheet, including, but not limited to, balance sheets of consolidated entities and consolidation eliminations.", "label": "Condensed Balance Sheet [Table Text Block]" } } }, "localname": "ScheduleOfCondensedBalanceSheetTableTextBlock", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-tables" ], "xbrltype": "textBlockItemType" }, "srt_ScheduleOfCondensedCashFlowStatementTableTextBlock": { "auth_ref": [ "r875" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of condensed cash flow statement, including, but not limited to, cash flow statements of consolidated entities and consolidation eliminations.", "label": "Condensed Cash Flow Statement [Table Text Block]" } } }, "localname": "ScheduleOfCondensedCashFlowStatementTableTextBlock", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-tables" ], "xbrltype": "textBlockItemType" }, "srt_ScheduleOfCondensedIncomeStatementTableTextBlock": { "auth_ref": [ "r875" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of condensed income statement, including, but not limited to, income statements of consolidated entities and consolidation eliminations.", "label": "Condensed Income Statement [Table Text Block]" } } }, "localname": "ScheduleOfCondensedIncomeStatementTableTextBlock", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-tables" ], "xbrltype": "textBlockItemType" }, "srt_StatementScenarioAxis": { "auth_ref": [ "r124", "r129", "r318", "r470", "r645" ], "lang": { "en-us": { "role": { "documentation": "Information by scenario reported, distinguishing information from actual fact. Includes, but is not limited to, pro forma and forecast. Excludes actual facts.", "label": "Scenario [Axis]" } } }, "localname": "StatementScenarioAxis", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies", "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-details-textual" ], "xbrltype": "stringItemType" }, "srt_TitleOfIndividualAxis": { "auth_ref": [ "r175", "r637" ], "lang": { "en-us": { "role": { "documentation": "Information by title of individual or nature of relationship to individual or group of individuals.", "label": "Title of Individual [Axis]" } } }, "localname": "TitleOfIndividualAxis", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans", "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-details-textual" ], "xbrltype": "stringItemType" }, "srt_TitleOfIndividualWithRelationshipToEntityDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Title of individual, or nature of relationship to individual or group of individuals.", "label": "Title of Individual [Domain]" } } }, "localname": "TitleOfIndividualWithRelationshipToEntityDomain", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans", "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-details-textual" ], "xbrltype": "domainItemType" }, "us-gaap_AccountingPoliciesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Accounting Policies [Abstract]" } } }, "localname": "AccountingPoliciesAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-significant-accounting-policies-policies" ], "xbrltype": "stringItemType" }, "us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments": { "auth_ref": [ "r96" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-": { "order": 19.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The sum of the periodic adjustments of the differences between securities' face values and purchase prices that are charged against earnings. This is called accretion if the security was purchased at a discount and amortization if it was purchased at premium. As a noncash item, this element is an adjustment to net income when calculating cash provided by or used in operations using the indirect method.", "label": "us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments", "negatedLabel": "Accretion of certain acquisition-related discounts, net" } } }, "localname": "AccretionAmortizationOfDiscountsAndPremiumsInvestments", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccruedInvestmentIncomeReceivable": { "auth_ref": [ "r14", "r694", "r770" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets": { "order": 9.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Interest, dividends, rents, ancillary and other revenues earned but not yet received by the entity on its investments.", "label": "Accrued interest receivable" } } }, "localname": "AccruedInvestmentIncomeReceivable", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment": { "auth_ref": [ "r24", "r311" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-6-premises-and-equipment-premises-and-equipment-details": { "order": 1.0, "parentTag": "us-gaap_PropertyPlantAndEquipmentNet", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.", "label": "us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment", "verboseLabel": "Less accumulated depreciation" } } }, "localname": "AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-6-premises-and-equipment-premises-and-equipment-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccumulatedGainLossNetCashFlowHedgeParentMember": { "auth_ref": [ "r45", "r55", "r56", "r57", "r58", "r558" ], "lang": { "en-us": { "role": { "documentation": "Accumulated other comprehensive income (loss) from gain (loss) of derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness, attributable to parent.", "label": "Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]" } } }, "localname": "AccumulatedGainLossNetCashFlowHedgeParentMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-changes-in-each-component-of-accumulated-other-comprehensive-income-loss-details" ], "xbrltype": "domainItemType" }, "us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember": { "auth_ref": [ "r38", "r39", "r40", "r45", "r55", "r56", "r57" ], "lang": { "en-us": { "role": { "documentation": "Accumulated unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), attributable to parent.", "label": "AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent [Member]" } } }, "localname": "AccumulatedNetUnrealizedInvestmentGainLossMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-changes-in-each-component-of-accumulated-other-comprehensive-income-loss-details" ], "xbrltype": "domainItemType" }, "us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax": { "auth_ref": [ "r17", "r42", "r44", "r45", "r767", "r792", "r793" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets": { "order": 4.0, "parentTag": "us-gaap_StockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.", "label": "Accumulated other comprehensive income, net", "verboseLabel": "Accumulated other comprehensive income, net" } } }, "localname": "AccumulatedOtherComprehensiveIncomeLossNetOfTax", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-balance-sheet-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccumulatedOtherComprehensiveIncomeMember": { "auth_ref": [ "r41", "r45", "r55", "r56", "r57", "r116", "r117", "r118", "r559", "r788", "r789", "r877" ], "lang": { "en-us": { "role": { "documentation": "Accumulated increase (decrease) in equity from transactions and other events and circumstances from non-owner sources, attributable to the parent. Excludes net income (loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners.", "label": "AOCI Attributable to Parent [Member]" } } }, "localname": "AccumulatedOtherComprehensiveIncomeMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity", "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-changes-in-each-component-of-accumulated-other-comprehensive-income-loss-details", "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-changes-in-each-component-of-accumulated-other-comprehensive-income-loss-details-parentheticals" ], "xbrltype": "domainItemType" }, "us-gaap_AdditionalPaidInCapital": { "auth_ref": [ "r15", "r496", "r643" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets": { "order": 0.0, "parentTag": "us-gaap_StockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of excess of issue price over par or stated value of stock and from other transaction involving stock or stockholder. Includes, but is not limited to, additional paid-in capital (APIC) for common and preferred stock.", "label": "Surplus", "verboseLabel": "Surplus" } } }, "localname": "AdditionalPaidInCapital", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-balance-sheet-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_AdditionalPaidInCapitalMember": { "auth_ref": [ "r116", "r117", "r118", "r493", "r494", "r495", "r585" ], "lang": { "en-us": { "role": { "documentation": "Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders.", "label": "Additional Paid-in Capital [Member]" } } }, "localname": "AdditionalPaidInCapitalMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity" ], "xbrltype": "domainItemType" }, "us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue": { "auth_ref": [ "r477", "r479", "r498", "r499" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of increase to additional paid-in capital (APIC) for recognition of cost for award under share-based payment arrangement.", "label": "us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue", "terseLabel": "Stock-based compensation" } } }, "localname": "AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity" ], "xbrltype": "monetaryItemType" }, "us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Adjustments to reconcile net income to net cash provided by operating activities:" } } }, "localname": "AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-" ], "xbrltype": "stringItemType" }, "us-gaap_AdvancesFromFederalHomeLoanBanks": { "auth_ref": [ "r748" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of borrowings as of the balance sheet date from the Federal Home Loan Bank, which are primarily used to cover shortages in the required reserve balance and liquidity shortages.", "label": "us-gaap_AdvancesFromFederalHomeLoanBanks", "terseLabel": "Advances from Federal Home Loan Banks, Total" } } }, "localname": "AdvancesFromFederalHomeLoanBanks", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-8-other-borrowings-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_AdvertisingCostsPolicyTextBlock": { "auth_ref": [ "r502" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for advertising cost.", "label": "Advertising Cost [Policy Text Block]" } } }, "localname": "AdvertisingCostsPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-significant-accounting-policies-policies" ], "xbrltype": "textBlockItemType" }, "us-gaap_AdvertisingExpense": { "auth_ref": [ "r503" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.", "label": "us-gaap_AdvertisingExpense", "terseLabel": "Advertising Expense" } } }, "localname": "AdvertisingExpense", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_AllocatedShareBasedCompensationExpense": { "auth_ref": [ "r479", "r490", "r497" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.", "label": "us-gaap_AllocatedShareBasedCompensationExpense", "terseLabel": "Share-based Payment Arrangement, Expense" } } }, "localname": "AllocatedShareBasedCompensationExpense", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock": { "auth_ref": [ "r185", "r273" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of allowance for credit loss on financing receivable.", "label": "Financing Receivable, Allowance for Credit Loss [Table Text Block]" } } }, "localname": "AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-tables" ], "xbrltype": "textBlockItemType" }, "us-gaap_AllowanceForCreditLossesTextBlock": { "auth_ref": [ "r225" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for allowance for credit losses.", "label": "Allowance for Credit Losses [Text Block]" } } }, "localname": "AllowanceForCreditLossesTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses" ], "xbrltype": "textBlockItemType" }, "us-gaap_AllowanceForDoubtfulAccountsReceivableWriteOffs": { "auth_ref": [ "r272" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of direct write-downs of accounts receivable charged against the allowance.", "label": "us-gaap_AllowanceForDoubtfulAccountsReceivableWriteOffs", "negatedLabel": "Charge-offs" } } }, "localname": "AllowanceForDoubtfulAccountsReceivableWriteOffs", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-allowance-by-impairment-methodology-and-loans-by-impairment-methodology-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_AllowanceForLoanAndLeaseLossRecoveryOfBadDebts": { "auth_ref": [ "r182" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts.", "label": "Recoveries" } } }, "localname": "AllowanceForLoanAndLeaseLossRecoveryOfBadDebts", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-allowance-by-impairment-methodology-and-loans-by-impairment-methodology-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_AmortizationOfDebtDiscountPremium": { "auth_ref": [ "r77", "r95", "r360", "r614" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-": { "order": 0.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.", "label": "Accretion of discounts and amortization of premiums on securities, net" } } }, "localname": "AmortizationOfDebtDiscountPremium", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-" ], "xbrltype": "monetaryItemType" }, "us-gaap_AmortizationOfDeferredCharges": { "auth_ref": [ "r73" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income": { "order": 1.0, "parentTag": "us-gaap_NoninterestExpense", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of amortization of deferred charges applied against earnings during the period.", "label": "Amortization expense" } } }, "localname": "AmortizationOfDeferredCharges", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income" ], "xbrltype": "monetaryItemType" }, "us-gaap_AmortizationOfDeferredLoanOriginationFeesNet": { "auth_ref": [ "r95", "r213" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The net increase(decrease) in interest income during the period representing the allocation of deferred loan origination fees less deferred loan origination costs using the effective interest method over the term of the debt arrangement to which they pertain taking into account the effect of prepayments.", "label": "us-gaap_AmortizationOfDeferredLoanOriginationFeesNet", "terseLabel": "Amortization of Deferred Loan Origination Fees, Net" } } }, "localname": "AmortizationOfDeferredLoanOriginationFeesNet", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_AmortizationOfFinancingCosts": { "auth_ref": [ "r69", "r95", "r360", "r616" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-": { "order": 14.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of amortization expense attributable to debt issuance costs.", "label": "Amortization of debt issuance costs", "verboseLabel": "Amortization of debt issuance costs" } } }, "localname": "AmortizationOfFinancingCosts", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-cash-flows-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_AmortizationOfIntangibleAssets": { "auth_ref": [ "r95", "r300", "r307" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-": { "order": 12.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.", "label": "Amortization of core deposit intangibles" } } }, "localname": "AmortizationOfIntangibleAssets", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-" ], "xbrltype": "monetaryItemType" }, "us-gaap_AssetManagement1Member": { "auth_ref": [ "r387" ], "lang": { "en-us": { "role": { "documentation": "Management of investment fund portfolio. Excludes investment advisory, distribution and servicing, and performance fee.", "label": "Asset Management [Member]" } } }, "localname": "AssetManagement1Member", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income" ], "xbrltype": "domainItemType" }, "us-gaap_Assets": { "auth_ref": [ "r108", "r161", "r164", "r170", "r267", "r326", "r327", "r328", "r329", "r330", "r331", "r332", "r333", "r334", "r335", "r336", "r555", "r560", "r604", "r641", "r643", "r695", "r765" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.", "label": "us-gaap_Assets", "terseLabel": "Assets, Total", "totalLabel": "Total assets", "verboseLabel": "Total assets" } } }, "localname": "Assets", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-balance-sheet-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_AssetsAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Assets" } } }, "localname": "AssetsAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets" ], "xbrltype": "stringItemType" }, "us-gaap_AssetsFairValueAdjustment": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of addition (reduction) to the amount at which an asset could be incurred (settled) in a current transaction between willing parties.", "label": "us-gaap_AssetsFairValueAdjustment", "terseLabel": "Assets, Fair Value Adjustment" } } }, "localname": "AssetsFairValueAdjustment", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_AssetsFairValueDisclosure": { "auth_ref": [ "r589" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.", "label": "us-gaap_AssetsFairValueDisclosure", "verboseLabel": "Assets, Fair Value" } } }, "localname": "AssetsFairValueDisclosure", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-assets-measured-at-fair-value-on-a-nonrecurring-basis-details", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-balances-of-assets-measured-at-fair-value-on-recurring-basis-details", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-quantitative-information-about-level-3-fair-value-measurements-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax": { "auth_ref": [ "r230" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).", "label": "Gross unrealized gains, available for sale securities" } } }, "localname": "AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-summary-of-amortized-costs-and-fair-values-of-securities-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax": { "auth_ref": [ "r231" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).", "label": "us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax", "negatedLabel": "Gross unrealized losses, available for sale securities" } } }, "localname": "AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-summary-of-amortized-costs-and-fair-values-of-securities-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis": { "auth_ref": [ "r228", "r287" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).", "label": "Amortized cost, available for sale securities", "terseLabel": "Amortized cost, available for sale securities" } } }, "localname": "AvailableForSaleDebtSecuritiesAmortizedCostBasis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-amortized-cost-and-fair-value-of-securities-details", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-summary-of-amortized-costs-and-fair-values-of-securities-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost": { "auth_ref": [ "r235" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Due after five years through ten years, amortized cost, available for sale securities" } } }, "localname": "AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-amortized-cost-and-fair-value-of-securities-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue": { "auth_ref": [ "r232", "r235", "r742" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Due after five years through ten years, fair value, available for sale securities" } } }, "localname": "AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-amortized-cost-and-fair-value-of-securities-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost": { "auth_ref": [ "r234" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Due after one year through five years, amortized cost, available for sale securities" } } }, "localname": "AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-amortized-cost-and-fair-value-of-securities-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue": { "auth_ref": [ "r232", "r234", "r741" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Due after one year through five years, fair value, available for sale securities" } } }, "localname": "AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-amortized-cost-and-fair-value-of-securities-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost": { "auth_ref": [ "r236" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing after tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Due after ten years, amortized cost, available for sale securities" } } }, "localname": "AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-amortized-cost-and-fair-value-of-securities-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue": { "auth_ref": [ "r232", "r236", "r743" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing after tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Due after ten years, fair value, available for sale securities" } } }, "localname": "AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-amortized-cost-and-fair-value-of-securities-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost": { "auth_ref": [ "r233" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Due within one year, amortized cost, available for sale securities" } } }, "localname": "AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-amortized-cost-and-fair-value-of-securities-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue": { "auth_ref": [ "r232", "r233", "r740" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Due within one year, fair value, available for sale securities" } } }, "localname": "AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-amortized-cost-and-fair-value-of-securities-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleSecuritiesDebtSecurities": { "auth_ref": [ "r226", "r229", "r287", "r700" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets": { "order": 2.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).", "label": "Securities available for sale, at fair value", "terseLabel": "Fair value, available for sale securities", "verboseLabel": "Fair value, available for sale securities" } } }, "localname": "AvailableForSaleSecuritiesDebtSecurities", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-balances-of-assets-measured-at-fair-value-on-recurring-basis-details", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-carrying-values-and-estimated-values-of-financial-instruments-details", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-amortized-cost-and-fair-value-of-securities-details", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-summary-of-amortized-costs-and-fair-values-of-securities-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_AwardTypeAxis": { "auth_ref": [ "r480", "r492" ], "lang": { "en-us": { "role": { "documentation": "Information by type of award under share-based payment arrangement.", "label": "Award Type [Axis]" } } }, "localname": "AwardTypeAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans", "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-summary-of-restricted-stock-unit-activity-details" ], "xbrltype": "stringItemType" }, "us-gaap_BalanceSheetLocationAxis": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Information by location on balance sheet (statement of financial position).", "label": "Balance Sheet Location [Axis]" } } }, "localname": "BalanceSheetLocationAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-operating-lease-rightofuse-asset-and-operating-lease-liability-details", "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-schedule-of-undiscounted-cash-flows-that-contribute-to-the-operating-lease-liability-details", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-details-textual" ], "xbrltype": "stringItemType" }, "us-gaap_BalanceSheetLocationDomain": { "auth_ref": [ "r569", "r572" ], "lang": { "en-us": { "role": { "documentation": "Location in the balance sheet (statement of financial position).", "label": "Balance Sheet Location [Domain]" } } }, "localname": "BalanceSheetLocationDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-operating-lease-rightofuse-asset-and-operating-lease-liability-details", "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-schedule-of-undiscounted-cash-flows-that-contribute-to-the-operating-lease-liability-details", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-details-textual" ], "xbrltype": "domainItemType" }, "us-gaap_BankOwnedLifeInsurance": { "auth_ref": [ "r694" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets": { "order": 10.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The carrying amount of a life insurance policy on an officer, executive or employee for which the reporting entity (a bank) is entitled to proceeds from the policy upon death of the insured or surrender of the insurance policy.", "label": "Bank owned life insurance", "verboseLabel": "Bank owned life insurance" } } }, "localname": "BankOwnedLifeInsurance", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-carrying-values-and-estimated-values-of-financial-instruments-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_BankOwnedLifeInsuranceIncome": { "auth_ref": [ "r723" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income": { "order": 4.0, "parentTag": "us-gaap_NoninterestIncome", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Earnings on or other increases in the value of the cash surrender value of bank owned life insurance policies.", "label": "Income from bank owned life insurance" } } }, "localname": "BankOwnedLifeInsuranceIncome", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income" ], "xbrltype": "monetaryItemType" }, "us-gaap_BankingRegulationCapitalConservationBufferCapitalConservedMinimum": { "auth_ref": [ "r753" ], "lang": { "en-us": { "role": { "documentation": "Minimum capital conservation buffer percentage required to avoid restriction on payout amount of eligible retained income as defined by regulatory framework.", "label": "us-gaap_BankingRegulationCapitalConservationBufferCapitalConservedMinimum", "terseLabel": "Banking Regulation, Capital Conservation Buffer, Capital Conserved, Minimum" } } }, "localname": "BankingRegulationCapitalConservationBufferCapitalConservedMinimum", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters-details-textual" ], "xbrltype": "pureItemType" }, "us-gaap_BasisOfAccountingPolicyPolicyTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for basis of accounting, or basis of presentation, used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS).", "label": "Basis of Accounting, Policy [Policy Text Block]" } } }, "localname": "BasisOfAccountingPolicyPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-significant-accounting-policies-policies" ], "xbrltype": "textBlockItemType" }, "us-gaap_BuildingAndBuildingImprovementsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Facility held for productive use including, but not limited to, office, production, storage and distribution facilities and any addition, improvement, or renovation to the structure, for example, but not limited to, interior masonry, interior flooring, electrical, and plumbing.", "label": "Building and Building Improvements [Member]" } } }, "localname": "BuildingAndBuildingImprovementsMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-6-premises-and-equipment-premises-and-equipment-details" ], "xbrltype": "domainItemType" }, "us-gaap_BusinessAcquisitionAcquireeDomain": { "auth_ref": [ "r464", "r471" ], "lang": { "en-us": { "role": { "documentation": "Identification of the acquiree in a material business combination (or series of individually immaterial business combinations), which may include the name or other type of identification of the acquiree.", "label": "Business Acquisition, Acquiree [Domain]" } } }, "localname": "BusinessAcquisitionAcquireeDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-", "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies", "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-16-transactions-with-related-parties", "http://www.fbvirginia.com/20211231/role/statement-note-16-transactions-with-related-parties-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-cash-flows-details", "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned", "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned-details-textual" ], "xbrltype": "domainItemType" }, "us-gaap_BusinessAcquisitionAxis": { "auth_ref": [ "r464", "r471", "r538", "r539" ], "lang": { "en-us": { "role": { "documentation": "Information by business combination or series of individually immaterial business combinations.", "label": "Business Acquisition [Axis]" } } }, "localname": "BusinessAcquisitionAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-", "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies", "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-16-transactions-with-related-parties", "http://www.fbvirginia.com/20211231/role/statement-note-16-transactions-with-related-parties-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-cash-flows-details", "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned", "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned-details-textual" ], "xbrltype": "stringItemType" }, "us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued": { "auth_ref": [ "r546" ], "lang": { "en-us": { "role": { "documentation": "Number of shares of equity interests issued or issuable to acquire entity.", "label": "us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued", "terseLabel": "Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares)" } } }, "localname": "BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-details-textual" ], "xbrltype": "sharesItemType" }, "us-gaap_BusinessAcquisitionProFormaEarningsPerShareBasic": { "auth_ref": [ "r536", "r537" ], "lang": { "en-us": { "role": { "documentation": "The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.", "label": "us-gaap_BusinessAcquisitionProFormaEarningsPerShareBasic", "terseLabel": "Business Acquisition, Pro Forma Earnings Per Share, Basic (in dollars per share)", "verboseLabel": "Net income per share, basic (in dollars per share)" } } }, "localname": "BusinessAcquisitionProFormaEarningsPerShareBasic", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-unaudited-pro-forma-amounts-details" ], "xbrltype": "perShareItemType" }, "us-gaap_BusinessAcquisitionProFormaEarningsPerShareDiluted": { "auth_ref": [ "r536", "r537" ], "lang": { "en-us": { "role": { "documentation": "The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.", "label": "us-gaap_BusinessAcquisitionProFormaEarningsPerShareDiluted", "verboseLabel": "Net income per share, diluted (in dollars per share)" } } }, "localname": "BusinessAcquisitionProFormaEarningsPerShareDiluted", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-unaudited-pro-forma-amounts-details" ], "xbrltype": "perShareItemType" }, "us-gaap_BusinessAcquisitionProFormaInformationTextBlock": { "auth_ref": [ "r536", "r537" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of pro forma results of operations for a material business acquisition or series of individually immaterial business acquisitions that are material in the aggregate.", "label": "Business Acquisition, Pro Forma Information [Table Text Block]" } } }, "localname": "BusinessAcquisitionProFormaInformationTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-tables" ], "xbrltype": "textBlockItemType" }, "us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss": { "auth_ref": [ "r536", "r537" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.", "label": "us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss", "terseLabel": "Business Acquisition, Pro Forma Net Income (Loss)", "verboseLabel": "Net income" } } }, "localname": "BusinessAcquisitionsProFormaNetIncomeLoss", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-unaudited-pro-forma-amounts-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessAcquisitionsProFormaRevenue": { "auth_ref": [ "r536", "r537" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.", "label": "us-gaap_BusinessAcquisitionsProFormaRevenue", "verboseLabel": "Total revenues (net interest income plus noninterest income)" } } }, "localname": "BusinessAcquisitionsProFormaRevenue", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-unaudited-pro-forma-amounts-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationAcquisitionRelatedCosts": { "auth_ref": [ "r535" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.", "label": "us-gaap_BusinessCombinationAcquisitionRelatedCosts", "terseLabel": "Business Combination, Acquisition Related Costs" } } }, "localname": "BusinessCombinationAcquisitionRelatedCosts", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationConsiderationTransferred1": { "auth_ref": [ "r542", "r543", "r544" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.", "label": "us-gaap_BusinessCombinationConsiderationTransferred1", "terseLabel": "Business Combination, Consideration Transferred, Total", "totalLabel": "Total purchase price" } } }, "localname": "BusinessCombinationConsiderationTransferred1", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable": { "auth_ref": [ "r542", "r543" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details": { "order": 1.0, "parentTag": "us-gaap_BusinessCombinationConsiderationTransferred1", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination.", "label": "Common stock issued" } } }, "localname": "BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationDisclosureTextBlock": { "auth_ref": [ "r550" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable).", "label": "Business Combination Disclosure [Text Block]" } } }, "localname": "BusinessCombinationDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions" ], "xbrltype": "textBlockItemType" }, "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets": { "auth_ref": [ "r541" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details": { "order": 1.0, "parentTag": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of assets acquired at the acquisition date.", "label": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets", "terseLabel": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets, Total", "totalLabel": "Total identifiable assets acquired" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents": { "auth_ref": [ "r541" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details": { "order": 9.0, "parentTag": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of currency on hand as well as demand deposits with banks or financial institutions, acquired at the acquisition date. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.", "label": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents", "verboseLabel": "Cash and due from banks" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsMarketableSecurities": { "auth_ref": [ "r541" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details": { "order": 2.0, "parentTag": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of investments in debt and equity securities, including, but not limited to, held-to-maturity, trading and available-for-sale expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date.", "label": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsMarketableSecurities", "verboseLabel": "Securities, AFS, at fair value" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsMarketableSecurities", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities": { "auth_ref": [ "r541" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details": { "order": 0.0, "parentTag": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of liabilities assumed at the acquisition date.", "label": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities", "totalLabel": "Total identifiable liabilities assumed" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet": { "auth_ref": [ "r540", "r541" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.", "label": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet", "totalLabel": "Net identifiable assets acquired at fair value" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets": { "auth_ref": [ "r541" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details": { "order": 0.0, "parentTag": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of other assets expected to be realized or consumed after one year or the normal operating cycle, if longer, acquired at the acquisition date.", "label": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets", "verboseLabel": "Other assets" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment": { "auth_ref": [ "r540", "r541" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details": { "order": 8.0, "parentTag": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of property, plant, and equipment recognized as of the acquisition date.", "label": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment", "verboseLabel": "Bank premises and equipment" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationsPolicy": { "auth_ref": [ "r534" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for completed business combinations (purchase method, acquisition method or combination of entities under common control). This accounting policy may include a general discussion of the purchase method or acquisition method of accounting (including for example, the treatment accorded contingent consideration, the identification of assets and liabilities, the purchase price allocation process, how the fair values of acquired assets and liabilities are determined) and the entity's specific application thereof. An entity that acquires another entity in a leveraged buyout transaction generally discloses the accounting policy followed by the acquiring entity in determining the basis used to value its interest in the acquired entity, and the rationale for that accounting policy.", "label": "Business Combinations Policy [Policy Text Block]" } } }, "localname": "BusinessCombinationsPolicy", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-significant-accounting-policies-policies" ], "xbrltype": "textBlockItemType" }, "us-gaap_Capital": { "auth_ref": [ "r753" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of total capital as defined by regulatory framework.", "label": "Total Capital (to Risk-Weighted Assets), actual amount" } } }, "localname": "Capital", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters-comparison-of-capital-of-company-and-bank-with-minimum-regulatory-guidelines-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_CapitalRequiredForCapitalAdequacy": { "auth_ref": [ "r753", "r757" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of minimum total risk-based capital required for capital adequacy as defined by regulatory framework.", "label": "Total Capital (to Risk-Weighted Assets), minimum capital requirement amount" } } }, "localname": "CapitalRequiredForCapitalAdequacy", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters-comparison-of-capital-of-company-and-bank-with-minimum-regulatory-guidelines-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_CapitalRequiredForCapitalAdequacyToRiskWeightedAssets": { "auth_ref": [ "r753", "r757" ], "lang": { "en-us": { "role": { "documentation": "Ratio of minimum total risk-based capital to risk-weighted assets required for capital adequacy as defined by regulatory framework.", "label": "Total Capital (to Risk-Weighted Assets), minimum capital requirement ratio" } } }, "localname": "CapitalRequiredForCapitalAdequacyToRiskWeightedAssets", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters-comparison-of-capital-of-company-and-bank-with-minimum-regulatory-guidelines-details" ], "xbrltype": "pureItemType" }, "us-gaap_CapitalRequiredToBeWellCapitalized": { "auth_ref": [ "r753" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of minimum total risk-based capital categorized as well capitalized as defined by regulatory framework for prompt corrective action.", "label": "Total Capital (to Risk-Weighted Assets), minimum to be well capitalized under prompt corrective action provisions, amount" } } }, "localname": "CapitalRequiredToBeWellCapitalized", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters-comparison-of-capital-of-company-and-bank-with-minimum-regulatory-guidelines-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets": { "auth_ref": [ "r753" ], "lang": { "en-us": { "role": { "documentation": "Ratio of minimum total risk-based capital to risk-weighted assets categorized as well capitalized as defined by regulatory framework for prompt corrective action.", "label": "Total Capital (to Risk-Weighted Assets), minimum to be well capitalized under prompt corrective action provisions, ratio" } } }, "localname": "CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters-comparison-of-capital-of-company-and-bank-with-minimum-regulatory-guidelines-details" ], "xbrltype": "pureItemType" }, "us-gaap_CapitalToRiskWeightedAssets": { "auth_ref": [ "r753" ], "lang": { "en-us": { "role": { "documentation": "Ratio of total risk-based capital to risk-weighted assets as defined by regulatory framework.", "label": "Total Capital (to Risk-Weighted Assets), actual ratio" } } }, "localname": "CapitalToRiskWeightedAssets", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters-comparison-of-capital-of-company-and-bank-with-minimum-regulatory-guidelines-details" ], "xbrltype": "pureItemType" }, "us-gaap_CarryingReportedAmountFairValueDisclosureMember": { "auth_ref": [ "r602", "r603" ], "lang": { "en-us": { "role": { "documentation": "Measured as reported on the statement of financial position (balance sheet).", "label": "Reported Value Measurement [Member]" } } }, "localname": "CarryingReportedAmountFairValueDisclosureMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-carrying-values-and-estimated-values-of-financial-instruments-details" ], "xbrltype": "domainItemType" }, "us-gaap_CashAndCashEquivalentsAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Cash and Cash Equivalents" } } }, "localname": "CashAndCashEquivalentsAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-" ], "xbrltype": "stringItemType" }, "us-gaap_CashAndCashEquivalentsFairValueDisclosure": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.", "label": "us-gaap_CashAndCashEquivalentsFairValueDisclosure", "verboseLabel": "Cash and short-term investments" } } }, "localname": "CashAndCashEquivalentsFairValueDisclosure", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-carrying-values-and-estimated-values-of-financial-instruments-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_CashAndCashEquivalentsPolicyTextBlock": { "auth_ref": [ "r3", "r98" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for cash and cash equivalents, including the policy for determining which items are treated as cash equivalents. Other information that may be disclosed includes (1) the nature of any restrictions on the entity's use of its cash and cash equivalents, (2) whether the entity's cash and cash equivalents are insured or expose the entity to credit risk, (3) the classification of any negative balance accounts (overdrafts), and (4) the carrying basis of cash equivalents (for example, at cost) and whether the carrying amount of cash equivalents approximates fair value.", "label": "Cash and Cash Equivalents, Policy [Policy Text Block]" } } }, "localname": "CashAndCashEquivalentsPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-significant-accounting-policies-policies" ], "xbrltype": "textBlockItemType" }, "us-gaap_CashAndDueFromBanks": { "auth_ref": [ "r692" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets": { "order": 4.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "For banks and other depository institutions: Includes cash on hand (currency and coin), cash items in process of collection, noninterest bearing deposits due from other financial institutions (including corporate credit unions), and noninterest bearing balances with the Federal Reserve Banks, Federal Home Loan Banks and central banks.", "label": "Cash and due from banks", "verboseLabel": "Cash" } } }, "localname": "CashAndDueFromBanks", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-balance-sheet-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations": { "auth_ref": [ "r91", "r97", "r103" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; including, but not limited to, disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.", "label": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations", "periodEndLabel": "Ending", "periodStartLabel": "Beginning" } } }, "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-cash-flows-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect": { "auth_ref": [ "r91", "r605" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of increase (decrease) in cash, cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; including effect from exchange rate change. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.", "label": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect", "totalLabel": "Increase in cash and cash equivalents", "verboseLabel": "(Decrease) increase in cash and cash equivalents" } } }, "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-cash-flows-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Supplemental Disclosures of Noncash Transactions" } } }, "localname": "CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-" ], "xbrltype": "stringItemType" }, "us-gaap_CommitmentsAndContingencies": { "auth_ref": [ "r31", "r317", "r706", "r772" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets": { "order": 0.0, "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur.", "label": "Commitments and contingencies" } } }, "localname": "CommitmentsAndContingencies", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_CommitmentsAndContingenciesDisclosureTextBlock": { "auth_ref": [ "r314", "r315", "r316", "r319", "r818" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for commitments and contingencies.", "label": "Commitments and Contingencies Disclosure [Text Block]" } } }, "localname": "CommitmentsAndContingenciesDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-15-commitments-and-unfunded-credits" ], "xbrltype": "textBlockItemType" }, "us-gaap_CommitmentsAndContingenciesPolicyTextBlock": { "auth_ref": [ "r322", "r819" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for commitments and contingencies, which may include policies for recognizing and measuring loss and gain contingencies.", "label": "Commitments and Contingencies, Policy [Policy Text Block]" } } }, "localname": "CommitmentsAndContingenciesPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-significant-accounting-policies-policies" ], "xbrltype": "textBlockItemType" }, "us-gaap_CommitmentsToExtendCreditMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Loan commitments are legally binding commitments to extend credit to a counterparty under certain terms and conditions.", "label": "Commitments to Extend Credit [Member]" } } }, "localname": "CommitmentsToExtendCreditMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-15-commitments-and-unfunded-credits-financial-instruments-representing-credit-risk-details" ], "xbrltype": "domainItemType" }, "us-gaap_CommonEquityTierOneCapital": { "auth_ref": [ "r753" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of Common Equity Tier 1 risk-based capital as defined by regulatory framework.", "label": "Common Equity Tier 1 Capital (to Risk-Weighted Assets), actual amount" } } }, "localname": "CommonEquityTierOneCapital", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters-comparison-of-capital-of-company-and-bank-with-minimum-regulatory-guidelines-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_CommonEquityTierOneCapitalRatio": { "auth_ref": [ "r753" ], "lang": { "en-us": { "role": { "documentation": "Ratio of Common Equity Tier 1 risk-based capital to risk-weighted assets as defined by regulatory framework.", "label": "Common Equity Tier 1 Capital (to Risk-Weighted Assets), actual ratio" } } }, "localname": "CommonEquityTierOneCapitalRatio", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters-comparison-of-capital-of-company-and-bank-with-minimum-regulatory-guidelines-details" ], "xbrltype": "pureItemType" }, "us-gaap_CommonEquityTierOneCapitalRequiredForCapitalAdequacy": { "auth_ref": [ "r753", "r757" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of minimum Common Equity Tier 1 risk-based capital required for capital adequacy as defined by regulatory framework.", "label": "Common Equity Tier 1 Capital (to Risk-Weighted Assets), minimum capital requirement amount" } } }, "localname": "CommonEquityTierOneCapitalRequiredForCapitalAdequacy", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters-comparison-of-capital-of-company-and-bank-with-minimum-regulatory-guidelines-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_CommonEquityTierOneCapitalRequiredToBeWellCapitalized": { "auth_ref": [ "r753" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of minimum Common Equity Tier 1 risk-based capital categorized as well capitalized as defined by regulatory framework for prompt corrective action.", "label": "Common Equity Tier 1 Capital (to Risk-Weighted Assets), minimum to be well capitalized under prompt corrective action provisions, amount" } } }, "localname": "CommonEquityTierOneCapitalRequiredToBeWellCapitalized", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters-comparison-of-capital-of-company-and-bank-with-minimum-regulatory-guidelines-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_CommonStockDividendsPerShareDeclared": { "auth_ref": [ "r375" ], "lang": { "en-us": { "role": { "documentation": "Aggregate dividends declared during the period for each share of common stock outstanding.", "label": "Cash dividends on common stock, per share (in dollars per share)" } } }, "localname": "CommonStockDividendsPerShareDeclared", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity-parentheticals" ], "xbrltype": "perShareItemType" }, "us-gaap_CommonStockMember": { "auth_ref": [ "r116", "r117", "r585" ], "lang": { "en-us": { "role": { "documentation": "Stock that is subordinate to all other stock of the issuer.", "label": "Common Stock [Member]" } } }, "localname": "CommonStockMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity", "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans", "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-details-textual" ], "xbrltype": "domainItemType" }, "us-gaap_CommonStockParOrStatedValuePerShare": { "auth_ref": [ "r13" ], "lang": { "en-us": { "role": { "documentation": "Face amount or stated value per share of common stock.", "label": "Common stock, par value (in dollars per share)" } } }, "localname": "CommonStockParOrStatedValuePerShare", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets-parentheticals" ], "xbrltype": "perShareItemType" }, "us-gaap_CommonStockSharesAuthorized": { "auth_ref": [ "r13" ], "lang": { "en-us": { "role": { "documentation": "The maximum number of common shares permitted to be issued by an entity's charter and bylaws.", "label": "Common stock, shares authorized (in shares)" } } }, "localname": "CommonStockSharesAuthorized", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets-parentheticals" ], "xbrltype": "sharesItemType" }, "us-gaap_CommonStockSharesIssued": { "auth_ref": [ "r13" ], "lang": { "en-us": { "role": { "documentation": "Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.", "label": "Common stock, shares issued (in shares)" } } }, "localname": "CommonStockSharesIssued", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets-parentheticals" ], "xbrltype": "sharesItemType" }, "us-gaap_CommonStockSharesOutstanding": { "auth_ref": [ "r13", "r374" ], "lang": { "en-us": { "role": { "documentation": "Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.", "label": "Common stock, shares outstanding (in shares)" } } }, "localname": "CommonStockSharesOutstanding", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets-parentheticals" ], "xbrltype": "sharesItemType" }, "us-gaap_CommonStockValue": { "auth_ref": [ "r13", "r643" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets": { "order": 2.0, "parentTag": "us-gaap_StockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity.", "label": "Common stock, par value $1.25 per share; authorized 8,000,000 shares; issued and outstanding, 2021, 6,228,176 shares, 2020, 4,860,399 shares", "verboseLabel": "Common stock" } } }, "localname": "CommonStockValue", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-balance-sheet-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_ComprehensiveIncomeNetOfTax": { "auth_ref": [ "r50", "r52", "r53", "r66", "r715", "r777" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-comprehensive-income": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.", "label": "us-gaap_ComprehensiveIncomeNetOfTax", "totalLabel": "Total comprehensive income" } } }, "localname": "ComprehensiveIncomeNetOfTax", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-comprehensive-income" ], "xbrltype": "monetaryItemType" }, "us-gaap_ComprehensiveIncomeNoteTextBlock": { "auth_ref": [ "r65", "r78", "r714", "r776" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income.", "label": "Comprehensive Income (Loss) Note [Text Block]" } } }, "localname": "ComprehensiveIncomeNoteTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss" ], "xbrltype": "textBlockItemType" }, "us-gaap_ComprehensiveIncomePolicyPolicyTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for comprehensive income.", "label": "Comprehensive Income, Policy [Policy Text Block]" } } }, "localname": "ComprehensiveIncomePolicyPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-significant-accounting-policies-policies" ], "xbrltype": "textBlockItemType" }, "us-gaap_ConcentrationRiskCreditRisk": { "auth_ref": [ "r149", "r760" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for credit risk.", "label": "Concentration Risk, Credit Risk, Policy [Policy Text Block]" } } }, "localname": "ConcentrationRiskCreditRisk", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-significant-accounting-policies-policies" ], "xbrltype": "textBlockItemType" }, "us-gaap_CondensedFinancialInformationOfParentCompanyOnlyDisclosureTextBlock": { "auth_ref": [ "r1", "r114", "r552" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for condensed financial information, including the financial position, cash flows, and the results of operations of the registrant (parent company) as of the same dates or for the same periods for which audited consolidated financial statements are being presented. Alternatively, the details of this disclosure can be reported by the specific parent company taxonomy elements, indicating the appropriate date and period contexts in an instance document.", "label": "Condensed Financial Information of Parent Company Only Disclosure [Text Block]" } } }, "localname": "CondensedFinancialInformationOfParentCompanyOnlyDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements" ], "xbrltype": "textBlockItemType" }, "us-gaap_ConsolidationPolicyTextBlock": { "auth_ref": [ "r104", "r557" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy regarding (1) the principles it follows in consolidating or combining the separate financial statements, including the principles followed in determining the inclusion or exclusion of subsidiaries or other entities in the consolidated or combined financial statements and (2) its treatment of interests (for example, common stock, a partnership interest or other means of exerting influence) in other entities, for example consolidation or use of the equity or cost methods of accounting. The accounting policy may also address the accounting treatment for intercompany accounts and transactions, noncontrolling interest, and the income statement treatment in consolidation for issuances of stock by a subsidiary.", "label": "Consolidation, Policy [Policy Text Block]" } } }, "localname": "ConsolidationPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-significant-accounting-policies-policies" ], "xbrltype": "textBlockItemType" }, "us-gaap_ConstructionInProgressMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service.", "label": "Construction in Progress [Member]" } } }, "localname": "ConstructionInProgressMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-6-premises-and-equipment-premises-and-equipment-details" ], "xbrltype": "domainItemType" }, "us-gaap_CoreDepositsMember": { "auth_ref": [ "r749" ], "lang": { "en-us": { "role": { "documentation": "Entity's long-term relationships with depositors, commonly known as core deposit intangibles, which are separate from the financial instruments themselves.", "label": "Core Deposits [Member]" } } }, "localname": "CoreDepositsMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies", "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual" ], "xbrltype": "domainItemType" }, "us-gaap_CorporateDebtSecuritiesMember": { "auth_ref": [ "r414", "r457", "r794" ], "lang": { "en-us": { "role": { "documentation": "Debt securities issued by domestic or foreign corporate business, banks and other entities with a promise of repayment.", "label": "Corporate Debt Securities [Member]" } } }, "localname": "CorporateDebtSecuritiesMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-balances-of-assets-measured-at-fair-value-on-recurring-basis-details", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-summary-of-amortized-costs-and-fair-values-of-securities-details" ], "xbrltype": "domainItemType" }, "us-gaap_CostsAndExpenses": { "auth_ref": [ "r72" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Total costs of sales and operating expenses for the period.", "label": "us-gaap_CostsAndExpenses", "verboseLabel": "Total expense" } } }, "localname": "CostsAndExpenses", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-income-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_CreditAndDebitCardMember": { "auth_ref": [ "r387" ], "lang": { "en-us": { "role": { "documentation": "Card issued to user to facilitate payment for purchase of product and service paid directly to merchant by issuer, or from user's checking account.", "label": "Credit and Debit Card [Member]" } } }, "localname": "CreditAndDebitCardMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income" ], "xbrltype": "domainItemType" }, "us-gaap_CreditFacilityAxis": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Information by type of credit facility. Credit facilities provide capital to borrowers without the need to structure a loan for each borrowing.", "label": "Credit Facility [Axis]" } } }, "localname": "CreditFacilityAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-8-other-borrowings", "http://www.fbvirginia.com/20211231/role/statement-note-8-other-borrowings-details-textual" ], "xbrltype": "stringItemType" }, "us-gaap_CreditFacilityDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Type of credit facility. Credit facilities provide capital to borrowers without the need to structure a loan for each borrowing.", "label": "Credit Facility [Domain]" } } }, "localname": "CreditFacilityDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-8-other-borrowings", "http://www.fbvirginia.com/20211231/role/statement-note-8-other-borrowings-details-textual" ], "xbrltype": "domainItemType" }, "us-gaap_CreditLossStatusAxis": { "auth_ref": [ "r221", "r286", "r296" ], "lang": { "en-us": { "role": { "documentation": "Information by credit loss status of financial asset.", "label": "Credit Loss Status [Axis]" } } }, "localname": "CreditLossStatusAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-loans-acquired-in-business-combinations-details" ], "xbrltype": "stringItemType" }, "us-gaap_CreditLossStatusDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Credit loss status of financial asset.", "label": "Credit Loss Status [Domain]" } } }, "localname": "CreditLossStatusDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-loans-acquired-in-business-combinations-details" ], "xbrltype": "domainItemType" }, "us-gaap_CurrentIncomeTaxExpenseBenefit": { "auth_ref": [ "r109", "r519", "r526", "r528" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-income-tax-expense-details": { "order": 0.0, "parentTag": "us-gaap_IncomeTaxExpenseBenefit", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations.", "label": "Current tax expense" } } }, "localname": "CurrentIncomeTaxExpenseBenefit", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-income-tax-expense-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtAndEquitySecuritiesGainLoss": { "auth_ref": [ "r68", "r70" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of unrealized and realized gain (loss) on investment in debt and equity securities.", "label": "us-gaap_DebtAndEquitySecuritiesGainLoss", "verboseLabel": "Net securities gains reclassified into earnings" } } }, "localname": "DebtAndEquitySecuritiesGainLoss", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-reclassifications-from-accumulated-other-comprehensive-loss-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtDisclosureTextBlock": { "auth_ref": [ "r106", "r343", "r344", "r345", "r346", "r347", "r348", "r349", "r354", "r361", "r362", "r364", "r370" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.", "label": "Debt Disclosure [Text Block]" } } }, "localname": "DebtDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-10-junior-subordinated-debt" ], "xbrltype": "textBlockItemType" }, "us-gaap_DebtInstrumentAxis": { "auth_ref": [ "r7", "r8", "r9", "r107", "r114", "r337", "r338", "r339", "r340", "r341", "r342", "r344", "r350", "r351", "r352", "r353", "r355", "r356", "r357", "r358", "r359", "r360", "r366", "r367", "r368", "r369", "r617", "r696", "r698", "r763" ], "lang": { "en-us": { "role": { "documentation": "Information by type of debt instrument, including, but not limited to, draws against credit facilities.", "label": "Debt Instrument [Axis]" } } }, "localname": "DebtInstrumentAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-26-subsequent-events-", "http://www.fbvirginia.com/20211231/role/statement-note-26-subsequent-events-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-8-other-borrowings", "http://www.fbvirginia.com/20211231/role/statement-note-8-other-borrowings-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-9-subordinated-debt-", "http://www.fbvirginia.com/20211231/role/statement-note-9-subordinated-debt-details-textual" ], "xbrltype": "stringItemType" }, "us-gaap_DebtInstrumentBasisSpreadOnVariableRate1": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Percentage points added to the reference rate to compute the variable rate on the debt instrument.", "label": "us-gaap_DebtInstrumentBasisSpreadOnVariableRate1", "terseLabel": "Debt Instrument, Basis Spread on Variable Rate" } } }, "localname": "DebtInstrumentBasisSpreadOnVariableRate1", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-8-other-borrowings-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-9-subordinated-debt-details-textual" ], "xbrltype": "percentItemType" }, "us-gaap_DebtInstrumentFaceAmount": { "auth_ref": [ "r337", "r366", "r367", "r615", "r617", "r618" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Face (par) amount of debt instrument at time of issuance.", "label": "us-gaap_DebtInstrumentFaceAmount", "terseLabel": "Debt Instrument, Face Amount" } } }, "localname": "DebtInstrumentFaceAmount", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-26-subsequent-events-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-9-subordinated-debt-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtInstrumentInterestRateEffectivePercentage": { "auth_ref": [ "r28", "r365", "r615", "r617" ], "lang": { "en-us": { "role": { "documentation": "Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.", "label": "us-gaap_DebtInstrumentInterestRateEffectivePercentage", "terseLabel": "Debt Instrument, Interest Rate, Effective Percentage" } } }, "localname": "DebtInstrumentInterestRateEffectivePercentage", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-10-junior-subordinated-debt-details-textual" ], "xbrltype": "percentItemType" }, "us-gaap_DebtInstrumentInterestRateStatedPercentage": { "auth_ref": [ "r28", "r338" ], "lang": { "en-us": { "role": { "documentation": "Contractual interest rate for funds borrowed, under the debt agreement.", "label": "us-gaap_DebtInstrumentInterestRateStatedPercentage", "terseLabel": "Debt Instrument, Interest Rate, Stated Percentage" } } }, "localname": "DebtInstrumentInterestRateStatedPercentage", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-26-subsequent-events-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-9-subordinated-debt-details-textual" ], "xbrltype": "percentItemType" }, "us-gaap_DebtInstrumentMaturityDate": { "auth_ref": [ "r29", "r340", "r593" ], "lang": { "en-us": { "role": { "documentation": "Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.", "label": "us-gaap_DebtInstrumentMaturityDate", "terseLabel": "Debt Instrument, Maturity Date" } } }, "localname": "DebtInstrumentMaturityDate", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-26-subsequent-events-details-textual" ], "xbrltype": "dateItemType" }, "us-gaap_DebtInstrumentNameDomain": { "auth_ref": [ "r30", "r107", "r114", "r337", "r338", "r339", "r340", "r341", "r342", "r344", "r350", "r351", "r352", "r353", "r355", "r356", "r357", "r358", "r359", "r360", "r366", "r367", "r368", "r369", "r617" ], "lang": { "en-us": { "role": { "documentation": "The name for the particular debt instrument or borrowing that distinguishes it from other debt instruments or borrowings, including draws against credit facilities.", "label": "Debt Instrument, Name [Domain]" } } }, "localname": "DebtInstrumentNameDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-26-subsequent-events-", "http://www.fbvirginia.com/20211231/role/statement-note-26-subsequent-events-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-8-other-borrowings", "http://www.fbvirginia.com/20211231/role/statement-note-8-other-borrowings-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-9-subordinated-debt-", "http://www.fbvirginia.com/20211231/role/statement-note-9-subordinated-debt-details-textual" ], "xbrltype": "domainItemType" }, "us-gaap_DebtSecuritiesAvailableForSaleAndHeldToMaturityAmortizedCostBeforeAllowanceForCreditLoss": { "auth_ref": [ "r228", "r237" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amortized cost, before allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity) and investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).", "label": "us-gaap_DebtSecuritiesAvailableForSaleAndHeldToMaturityAmortizedCostBeforeAllowanceForCreditLoss", "terseLabel": "Amortized cost" } } }, "localname": "DebtSecuritiesAvailableForSaleAndHeldToMaturityAmortizedCostBeforeAllowanceForCreditLoss", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-summary-of-amortized-costs-and-fair-values-of-securities-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtSecuritiesAvailableForSaleAndHeldToMaturityCumulativeUnrecognizedGain": { "auth_ref": [ "r230", "r247" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of cumulative unrecognized gain on investment in debt security measured at amortized cost (held-to-maturity) and investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).", "label": "Gross unrealized gains" } } }, "localname": "DebtSecuritiesAvailableForSaleAndHeldToMaturityCumulativeUnrecognizedGain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-summary-of-amortized-costs-and-fair-values-of-securities-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtSecuritiesAvailableForSaleAndHeldToMaturityCumulativeUnrecognizedLoss": { "auth_ref": [ "r231", "r248" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of cumulative unrecognized loss on investment in debt security measured at amortized cost (held-to-maturity) and investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).", "label": "us-gaap_DebtSecuritiesAvailableForSaleAndHeldToMaturityCumulativeUnrecognizedLoss", "negatedLabel": "Gross unrealized losses" } } }, "localname": "DebtSecuritiesAvailableForSaleAndHeldToMaturityCumulativeUnrecognizedLoss", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-summary-of-amortized-costs-and-fair-values-of-securities-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtSecuritiesAvailableForSaleAndHeldToMaturityFairValue": { "auth_ref": [ "r229", "r246" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Fair value of investment in debt security measured at amortized cost (held-to-maturity) and investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).", "label": "us-gaap_DebtSecuritiesAvailableForSaleAndHeldToMaturityFairValue", "terseLabel": "Total securities, fair value" } } }, "localname": "DebtSecuritiesAvailableForSaleAndHeldToMaturityFairValue", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-summary-of-amortized-costs-and-fair-values-of-securities-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger": { "auth_ref": [ "r258", "r292", "r295" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.", "label": "us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger", "verboseLabel": "12 months or more, fair value, available for sale securities" } } }, "localname": "DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-investments-in-an-unrealized-loss-position-that-were-temporarily-impaired-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss": { "auth_ref": [ "r258", "r292" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for 12 months or longer, without allowance for credit loss. Includes beneficial interest in securitized financial asset.", "label": "us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss", "negatedLabel": "12 months or more, unrealized (loss), available for sale securities" } } }, "localname": "DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-investments-in-an-unrealized-loss-position-that-were-temporarily-impaired-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months": { "auth_ref": [ "r258", "r292", "r295" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.", "label": "Less than 12 months, fair value, available for sale securities" } } }, "localname": "DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-investments-in-an-unrealized-loss-position-that-were-temporarily-impaired-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss": { "auth_ref": [ "r258", "r292" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.", "label": "us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss", "negatedLabel": "Less than 12 months, unrealized (loss), available for sale securities" } } }, "localname": "DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-investments-in-an-unrealized-loss-position-that-were-temporarily-impaired-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtSecuritiesAvailableForSaleGainLoss": { "auth_ref": [], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-": { "order": 5.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 }, "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income": { "order": 5.0, "parentTag": "us-gaap_NoninterestIncome", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of unrealized and realized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).", "label": "Net gains on securities available for sale", "negatedLabel": "Gains on securities available for sale" } } }, "localname": "DebtSecuritiesAvailableForSaleGainLoss", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-", "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtSecuritiesAvailableForSaleRealizedGain": { "auth_ref": [ "r259" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of realized gain on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).", "label": "us-gaap_DebtSecuritiesAvailableForSaleRealizedGain", "terseLabel": "Debt Securities, Available-for-sale, Realized Gain" } } }, "localname": "DebtSecuritiesAvailableForSaleRealizedGain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtSecuritiesAvailableForSaleRestricted": { "auth_ref": [ "r665", "r816", "r817" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of restricted investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).", "label": "us-gaap_DebtSecuritiesAvailableForSaleRestricted", "terseLabel": "Debt Securities, Available-for-sale, Restricted" } } }, "localname": "DebtSecuritiesAvailableForSaleRestricted", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPosition": { "auth_ref": [ "r254", "r288", "r295" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position without allowance for credit loss.", "label": "Total, fair value, available for sale securities" } } }, "localname": "DebtSecuritiesAvailableForSaleUnrealizedLossPosition", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-investments-in-an-unrealized-loss-position-that-were-temporarily-impaired-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss": { "auth_ref": [ "r255", "r289" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset.", "label": "us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss", "negatedLabel": "Total, unrealized (loss), available for sale securities" } } }, "localname": "DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-investments-in-an-unrealized-loss-position-that-were-temporarily-impaired-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions": { "auth_ref": [ "r256", "r290" ], "lang": { "en-us": { "role": { "documentation": "Number of investments in debt securities measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset.", "label": "us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions", "terseLabel": "Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions" } } }, "localname": "DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-details-textual" ], "xbrltype": "integerItemType" }, "us-gaap_DeferredFinanceCostsNet": { "auth_ref": [ "r25", "r350", "r616" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.", "label": "us-gaap_DeferredFinanceCostsNet", "terseLabel": "Debt Issuance Costs, Net, Total" } } }, "localname": "DeferredFinanceCostsNet", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-9-subordinated-debt-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredIncomeTaxExpenseBenefit": { "auth_ref": [ "r95", "r109", "r520", "r526", "r527", "r528" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-": { "order": 13.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 }, "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-income-tax-expense-details": { "order": 1.0, "parentTag": "us-gaap_IncomeTaxExpenseBenefit", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.", "label": "Deferred income tax benefit" } } }, "localname": "DeferredIncomeTaxExpenseBenefit", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-", "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-income-tax-expense-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredIncomeTaxLiabilities": { "auth_ref": [ "r10", "r11", "r511", "r697", "r761" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details": { "order": 0.0, "parentTag": "us-gaap_DeferredTaxAssetsLiabilitiesNet", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of deferred tax liability attributable to taxable temporary differences.", "label": "us-gaap_DeferredIncomeTaxLiabilities", "totalLabel": "Total deferred tax liabilities" } } }, "localname": "DeferredIncomeTaxLiabilities", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets": { "auth_ref": [], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details": { "order": 5.0, "parentTag": "us-gaap_DeferredTaxAssetsGross", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from intangible assets including goodwill.", "label": "us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets", "verboseLabel": "Core deposit intangible" } } }, "localname": "DeferredTaxAssetsGoodwillAndIntangibleAssets", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsGross": { "auth_ref": [ "r512" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details": { "order": 1.0, "parentTag": "us-gaap_DeferredTaxAssetsLiabilitiesNet", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.", "label": "us-gaap_DeferredTaxAssetsGross", "totalLabel": "Total deferred tax assets" } } }, "localname": "DeferredTaxAssetsGross", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsInvestmentInSubsidiaries": { "auth_ref": [ "r517", "r518" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details": { "order": 4.0, "parentTag": "us-gaap_DeferredTaxAssetsGross", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from the entity's investment in its wholly-owned subsidiaries.", "label": "us-gaap_DeferredTaxAssetsInvestmentInSubsidiaries", "verboseLabel": "Limited partnership investments" } } }, "localname": "DeferredTaxAssetsInvestmentInSubsidiaries", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsLiabilitiesNet": { "auth_ref": [ "r513" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting.", "label": "us-gaap_DeferredTaxAssetsLiabilitiesNet", "totalLabel": "Net deferred tax assets" } } }, "localname": "DeferredTaxAssetsLiabilitiesNet", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsOperatingLossCarryforwards": { "auth_ref": [ "r517", "r518" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details": { "order": 11.0, "parentTag": "us-gaap_DeferredTaxAssetsGross", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards.", "label": "NOL carryover - acquired from Fincastle" } } }, "localname": "DeferredTaxAssetsOperatingLossCarryforwards", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsTaxCreditCarryforwards": { "auth_ref": [ "r516", "r517", "r518" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details": { "order": 2.0, "parentTag": "us-gaap_DeferredTaxAssetsGross", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount, before allocation of a valuation allowances, of deferred tax assets attributable to deductible tax credit carryforwards including, but not limited to, research, foreign, general business, alternative minimum tax, and other deductible tax credit carryforwards.", "label": "Housing tax credit" } } }, "localname": "DeferredTaxAssetsTaxCreditCarryforwards", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits": { "auth_ref": [ "r517" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details": { "order": 10.0, "parentTag": "us-gaap_DeferredTaxAssetsGross", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from postretirement benefits.", "label": "us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits", "verboseLabel": "Post-retirement benefits" } } }, "localname": "DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsLossReserves": { "auth_ref": [ "r517", "r518" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details": { "order": 3.0, "parentTag": "us-gaap_DeferredTaxAssetsGross", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from loss reserves other than estimated credit losses.", "label": "Reserve for letter of credit losses" } } }, "localname": "DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsLossReserves", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses": { "auth_ref": [ "r517", "r518" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details": { "order": 1.0, "parentTag": "us-gaap_DeferredTaxAssetsGross", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary difference from allowance for credit loss on financing receivable.", "label": "us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses", "verboseLabel": "Allowance for loan losses" } } }, "localname": "DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross": { "auth_ref": [ "r517" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details": { "order": 9.0, "parentTag": "us-gaap_DeferredTaxAssetsGross", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary difference from unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).", "label": "us-gaap_DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross", "verboseLabel": "Unrealized loss on securities available for sale" } } }, "localname": "DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxLiabilitiesDerivatives": { "auth_ref": [ "r517", "r518" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details": { "order": 3.0, "parentTag": "us-gaap_DeferredIncomeTaxLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of deferred tax liability attributable to taxable temporary differences from derivatives.", "label": "us-gaap_DeferredTaxLiabilitiesDerivatives", "verboseLabel": "Cash flow hedges" } } }, "localname": "DeferredTaxLiabilitiesDerivatives", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxLiabilitiesInvestments": { "auth_ref": [], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details": { "order": 4.0, "parentTag": "us-gaap_DeferredIncomeTaxLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of deferred tax liability attributable to taxable temporary differences from investments (excludes investments in subsidiaries and equity method investments).", "label": "us-gaap_DeferredTaxLiabilitiesInvestments", "verboseLabel": "Unrealized gains on securities available for sale" } } }, "localname": "DeferredTaxLiabilitiesInvestments", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment": { "auth_ref": [ "r517", "r518" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details": { "order": 2.0, "parentTag": "us-gaap_DeferredIncomeTaxLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment.", "label": "us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment", "verboseLabel": "Depreciation" } } }, "localname": "DeferredTaxLiabilitiesPropertyPlantAndEquipment", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_DefinedContributionPlanCostRecognized": { "auth_ref": [ "r462" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of cost for defined contribution plan.", "label": "us-gaap_DefinedContributionPlanCostRecognized", "terseLabel": "Defined Contribution Plan, Cost" } } }, "localname": "DefinedContributionPlanCostRecognized", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-13-benefit-plans-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Percentage employer matches of the employee's percentage contribution matched.", "label": "us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch", "terseLabel": "Defined Contribution Plan, Employer Matching Contribution, Percent of Match" } } }, "localname": "DefinedContributionPlanEmployerMatchingContributionPercentOfMatch", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-13-benefit-plans-details-textual" ], "xbrltype": "percentItemType" }, "us-gaap_DefinedContributionPlanNumberOfEmployees": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Number of employees eligible to participate in defined contribution plan.", "label": "us-gaap_DefinedContributionPlanNumberOfEmployees", "terseLabel": "Defined Contribution Plan, Number of Employees" } } }, "localname": "DefinedContributionPlanNumberOfEmployees", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-13-benefit-plans-details-textual" ], "xbrltype": "integerItemType" }, "us-gaap_DepositAccountMember": { "auth_ref": [ "r387" ], "lang": { "en-us": { "role": { "documentation": "Bank account at depository institution allowing money to be withdrawn or deposited by account holder.", "label": "Deposit Account [Member]" } } }, "localname": "DepositAccountMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income" ], "xbrltype": "domainItemType" }, "us-gaap_DepositLiabilitiesDisclosuresTextBlock": { "auth_ref": [ "r703", "r747", "r857", "r858" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for deposit liabilities including data and tables. It may include a description of the entity's deposit liabilities, the aggregate amount of time deposits (including certificates of deposit) in denominations of $100,000 or more at the balance sheet date; the aggregate amount of any demand deposits that have been reclassified as loan balances, such as overdrafts, at the balance sheet date; deposits that are received on terms other than those in the normal course of business, the amount of accrued interest on deposit liabilities; securities, mortgage loans or other financial instruments that serve as collateral for deposits; for time deposits having a remaining term of more than one year, the aggregate amount of maturities for each of the five years following the balance sheet date; and the weighted average interest rate for all deposit liabilities held by the entity.", "label": "Deposit Liabilities Disclosures [Text Block]" } } }, "localname": "DepositLiabilitiesDisclosuresTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-7-deposits" ], "xbrltype": "textBlockItemType" }, "us-gaap_Deposits": { "auth_ref": [ "r703" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets": { "order": 0.0, "parentTag": "us-gaap_Liabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others.", "label": "us-gaap_Deposits", "terseLabel": "Deposits, Total", "totalLabel": "Total deposits" } } }, "localname": "Deposits", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_DepositsFairValueDisclosure": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Fair value portion of deposit liabilities held by the entity, including, but not limited to, foreign and domestic, interest and noninterest bearing, demand deposits, saving deposits, negotiable orders of withdrawal (NOW) and time deposits.", "label": "us-gaap_DepositsFairValueDisclosure", "verboseLabel": "Deposits" } } }, "localname": "DepositsFairValueDisclosure", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-carrying-values-and-estimated-values-of-financial-instruments-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_Depreciation": { "auth_ref": [ "r95", "r309" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.", "label": "us-gaap_Depreciation", "terseLabel": "Depreciation, Total" } } }, "localname": "Depreciation", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-6-premises-and-equipment-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_DepreciationAmortizationAndAccretionNet": { "auth_ref": [ "r95" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-": { "order": 17.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The aggregate net amount of depreciation, amortization, and accretion recognized during an accounting period. As a noncash item, the net amount is added back to net income when calculating cash provided by or used in operations using the indirect method.", "label": "Depreciation and amortization of premises and equipment" } } }, "localname": "DepreciationAmortizationAndAccretionNet", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-" ], "xbrltype": "monetaryItemType" }, "us-gaap_DerivativeAssets": { "auth_ref": [ "r35", "r36", "r37", "r601" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.", "label": "Derivative Assets" } } }, "localname": "DerivativeAssets", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-derivative-instruments-components-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_DerivativeContractTypeDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Financial instrument or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.", "label": "Derivative Contract [Domain]" } } }, "localname": "DerivativeContractTypeDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-", "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-derivative-instruments-components-details", "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-details-textual" ], "xbrltype": "domainItemType" }, "us-gaap_DerivativeFixedInterestRate": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Fixed interest rate related to the interest rate derivative.", "label": "us-gaap_DerivativeFixedInterestRate", "terseLabel": "Derivative, Fixed Interest Rate" } } }, "localname": "DerivativeFixedInterestRate", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-details-textual" ], "xbrltype": "percentItemType" }, "us-gaap_DerivativeInstrumentRiskAxis": { "auth_ref": [ "r37", "r570", "r571", "r574", "r576" ], "lang": { "en-us": { "role": { "documentation": "Information by type of derivative contract.", "label": "Derivative Instrument [Axis]" } } }, "localname": "DerivativeInstrumentRiskAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-", "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-derivative-instruments-components-details", "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-details-textual" ], "xbrltype": "stringItemType" }, "us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock": { "auth_ref": [ "r584", "r588" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for derivative instruments and hedging activities including, but not limited to, risk management strategies, non-hedging derivative instruments, assets, liabilities, revenue and expenses, and methodologies and assumptions used in determining the amounts.", "label": "Derivative Instruments and Hedging Activities Disclosure [Text Block]" } } }, "localname": "DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-" ], "xbrltype": "textBlockItemType" }, "us-gaap_DerivativeLiabilities": { "auth_ref": [ "r35", "r36", "r37", "r601" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.", "label": "Derivative liabilities", "verboseLabel": "Derivatives - cash flow hedges" } } }, "localname": "DerivativeLiabilities", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-balances-of-assets-measured-at-fair-value-on-recurring-basis-details", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-carrying-values-and-estimated-values-of-financial-instruments-details", "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-derivative-instruments-components-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_DerivativeNotionalAmount": { "auth_ref": [ "r564", "r566" ], "lang": { "en-us": { "role": { "documentation": "Nominal or face amount used to calculate payment on derivative.", "label": "Notional amount", "terseLabel": "Derivative, Notional Amount" } } }, "localname": "DerivativeNotionalAmount", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-derivative-instruments-components-details", "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_DerivativeNumberOfInstrumentsHeld": { "auth_ref": [ "r564", "r566" ], "lang": { "en-us": { "role": { "documentation": "The number of derivative instruments of a particular group held by the entity.", "label": "us-gaap_DerivativeNumberOfInstrumentsHeld", "terseLabel": "Derivative, Number of Instruments Held, Total" } } }, "localname": "DerivativeNumberOfInstrumentsHeld", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-details-textual" ], "xbrltype": "integerItemType" }, "us-gaap_DerivativesPolicyTextBlock": { "auth_ref": [ "r113", "r563", "r565", "r567", "r568", "r580" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for its derivative instruments and hedging activities.", "label": "Derivatives, Policy [Policy Text Block]" } } }, "localname": "DerivativesPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-significant-accounting-policies-policies" ], "xbrltype": "textBlockItemType" }, "us-gaap_DesignatedAsHedgingInstrumentMember": { "auth_ref": [ "r567" ], "lang": { "en-us": { "role": { "documentation": "Derivative instrument designated as hedging instrument under Generally Accepted Accounting Principles (GAAP).", "label": "Designated as Hedging Instrument [Member]" } } }, "localname": "DesignatedAsHedgingInstrumentMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-derivative-instruments-components-details" ], "xbrltype": "domainItemType" }, "us-gaap_DisaggregationOfRevenueTableTextBlock": { "auth_ref": [ "r385" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.", "label": "Disaggregation of Revenue [Table Text Block]" } } }, "localname": "DisaggregationOfRevenueTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-23-revenue-recognition-tables" ], "xbrltype": "textBlockItemType" }, "us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock": { "auth_ref": [ "r501" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for share-based payment arrangement.", "label": "Share-based Payment Arrangement [Text Block]" } } }, "localname": "DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans" ], "xbrltype": "textBlockItemType" }, "us-gaap_DisclosureTextBlockAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "us-gaap_DisclosureTextBlockAbstract", "terseLabel": "Notes to Financial Statements" } } }, "localname": "DisclosureTextBlockAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies", "http://www.fbvirginia.com/20211231/role/statement-note-10-junior-subordinated-debt", "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes", "http://www.fbvirginia.com/20211231/role/statement-note-12-funds-restrictions-and-reserve-balance", "http://www.fbvirginia.com/20211231/role/statement-note-13-benefit-plans", "http://www.fbvirginia.com/20211231/role/statement-note-14-earnings-per-common-share", "http://www.fbvirginia.com/20211231/role/statement-note-15-commitments-and-unfunded-credits", "http://www.fbvirginia.com/20211231/role/statement-note-16-transactions-with-related-parties", "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments", "http://www.fbvirginia.com/20211231/role/statement-note-18-dividend-reinvestment-plan", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities", "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters", "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss", "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans", "http://www.fbvirginia.com/20211231/role/statement-note-23-revenue-recognition", "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions", "http://www.fbvirginia.com/20211231/role/statement-note-26-subsequent-events-", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses", "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned", "http://www.fbvirginia.com/20211231/role/statement-note-6-premises-and-equipment", "http://www.fbvirginia.com/20211231/role/statement-note-7-deposits", "http://www.fbvirginia.com/20211231/role/statement-note-8-other-borrowings", "http://www.fbvirginia.com/20211231/role/statement-note-9-subordinated-debt-" ], "xbrltype": "stringItemType" }, "us-gaap_DividendIncomeOperating": { "auth_ref": [ "r727" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income": { "order": 3.0, "parentTag": "us-gaap_InterestAndDividendIncomeOperating", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of operating dividend income on securities.", "label": "Dividends" } } }, "localname": "DividendIncomeOperating", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income" ], "xbrltype": "monetaryItemType" }, "us-gaap_DividendsCommonStockCash": { "auth_ref": [ "r375" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of paid and unpaid common stock dividends declared with the form of settlement in cash.", "label": "us-gaap_DividendsCommonStockCash", "negatedLabel": "Cash dividends on common stock" } } }, "localname": "DividendsCommonStockCash", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity" ], "xbrltype": "monetaryItemType" }, "us-gaap_DoubtfulMember": { "auth_ref": [ "r197", "r279" ], "lang": { "en-us": { "role": { "documentation": "A category of financing receivables that have all the weaknesses inherent in those classified as substandard, with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable.", "label": "Doubtful [Member]" } } }, "localname": "DoubtfulMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-analysis-of-the-credit-risk-profile-of-each-loan-class-details" ], "xbrltype": "domainItemType" }, "us-gaap_EarningsPerShareAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Earnings per common share" } } }, "localname": "EarningsPerShareAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income" ], "xbrltype": "stringItemType" }, "us-gaap_EarningsPerShareBasic": { "auth_ref": [ "r67", "r121", "r122", "r123", "r124", "r125", "r131", "r134", "r136", "r137", "r138", "r142", "r143", "r586", "r587", "r716", "r778" ], "lang": { "en-us": { "role": { "documentation": "The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.", "label": "Basic (in dollars per share)", "verboseLabel": "Basic (in dollars per share)" } } }, "localname": "EarningsPerShareBasic", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income", "http://www.fbvirginia.com/20211231/role/statement-note-14-earnings-per-common-share-basic-and-diluted-earnings-per-share-details" ], "xbrltype": "perShareItemType" }, "us-gaap_EarningsPerShareDiluted": { "auth_ref": [ "r67", "r121", "r122", "r123", "r124", "r125", "r134", "r136", "r137", "r138", "r142", "r143", "r586", "r587", "r716", "r778" ], "lang": { "en-us": { "role": { "documentation": "The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.", "label": "Diluted (in dollars per share)", "verboseLabel": "Diluted (in dollars per share)" } } }, "localname": "EarningsPerShareDiluted", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income", "http://www.fbvirginia.com/20211231/role/statement-note-14-earnings-per-common-share-basic-and-diluted-earnings-per-share-details" ], "xbrltype": "perShareItemType" }, "us-gaap_EarningsPerSharePolicyTextBlock": { "auth_ref": [ "r139", "r140" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for computing basic and diluted earnings or loss per share for each class of common stock and participating security. Addresses all significant policy factors, including any antidilutive items that have been excluded from the computation and takes into account stock dividends, splits and reverse splits that occur after the balance sheet date of the latest reporting period but before the issuance of the financial statements.", "label": "Earnings Per Share, Policy [Policy Text Block]" } } }, "localname": "EarningsPerSharePolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-significant-accounting-policies-policies" ], "xbrltype": "textBlockItemType" }, "us-gaap_EarningsPerShareTextBlock": { "auth_ref": [ "r139", "r140", "r141", "r144" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for earnings per share.", "label": "Earnings Per Share [Text Block]" } } }, "localname": "EarningsPerShareTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-14-earnings-per-common-share" ], "xbrltype": "textBlockItemType" }, "us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1": { "auth_ref": [ "r491" ], "lang": { "en-us": { "role": { "documentation": "Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.", "label": "us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1", "terseLabel": "Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)" } } }, "localname": "EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-details-textual" ], "xbrltype": "durationItemType" }, "us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions": { "auth_ref": [ "r491" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.", "label": "us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions", "terseLabel": "Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount" } } }, "localname": "EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_EquipmentExpense": { "auth_ref": [], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income": { "order": 9.0, "parentTag": "us-gaap_NoninterestExpense", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "This element represents equipment expense including depreciation, repairs, rentals, and service contract costs. This item also includes equipment purchases which do not qualify for capitalization in accordance with the entity's accounting policy. This item may also include furniture expenses.", "label": "Equipment" } } }, "localname": "EquipmentExpense", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income" ], "xbrltype": "monetaryItemType" }, "us-gaap_EquityComponentDomain": { "auth_ref": [ "r0", "r55", "r56", "r57", "r116", "r117", "r118", "r120", "r126", "r128", "r146", "r269", "r374", "r375", "r493", "r494", "r495", "r522", "r523", "r585", "r606", "r607", "r608", "r609", "r610", "r612", "r788", "r789", "r790", "r877" ], "lang": { "en-us": { "role": { "documentation": "Components of equity are the parts of the total Equity balance including that which is allocated to common, preferred, treasury stock, retained earnings, etc.", "label": "Equity Component [Domain]" } } }, "localname": "EquityComponentDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity", "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-changes-in-each-component-of-accumulated-other-comprehensive-income-loss-details", "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-changes-in-each-component-of-accumulated-other-comprehensive-income-loss-details-parentheticals" ], "xbrltype": "domainItemType" }, "us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount": { "auth_ref": [ "r262" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of investment in equity security without readily determinable fair value.", "label": "us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount", "terseLabel": "Equity Securities without Readily Determinable Fair Value, Amount" } } }, "localname": "EquitySecuritiesWithoutReadilyDeterminableFairValueAmount", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_EstimateOfFairValueFairValueDisclosureMember": { "auth_ref": [ "r352", "r366", "r367", "r601" ], "lang": { "en-us": { "role": { "documentation": "Measured as an estimate of fair value.", "label": "Estimate of Fair Value Measurement [Member]" } } }, "localname": "EstimateOfFairValueFairValueDisclosureMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-carrying-values-and-estimated-values-of-financial-instruments-details" ], "xbrltype": "domainItemType" }, "us-gaap_ExcessTaxBenefitFromShareBasedCompensationOperatingActivities": { "auth_ref": [ "r500" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-": { "order": 16.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of cash outflow for realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes.", "label": "us-gaap_ExcessTaxBenefitFromShareBasedCompensationOperatingActivities", "negatedLabel": "Excess tax benefits on stock-based compensation" } } }, "localname": "ExcessTaxBenefitFromShareBasedCompensationOperatingActivities", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-" ], "xbrltype": "monetaryItemType" }, "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock": { "auth_ref": [ "r591" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of input and valuation technique used to measure fair value and change in valuation approach and technique for each separate class of asset and liability measured on recurring and nonrecurring basis.", "label": "Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]" } } }, "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-tables" ], "xbrltype": "textBlockItemType" }, "us-gaap_FairValueAssetsMeasuredOnNonrecurringBasisTextBlock": { "auth_ref": [ "r589", "r590", "r591" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of assets and liabilities by class, including financial instruments measured at fair value that are classified in shareholders' equity, if any, that are measured at fair value on a nonrecurring basis in periods after initial recognition (for example, impaired assets). Disclosures may include, but are not limited to: (a) the fair value measurements recorded and the reasons for the measurements and (b) the level within the fair value hierarchy in which the fair value measurements are categorized in their entirety (levels 1, 2, 3).", "label": "Fair Value Measurements, Nonrecurring [Table Text Block]" } } }, "localname": "FairValueAssetsMeasuredOnNonrecurringBasisTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-tables" ], "xbrltype": "textBlockItemType" }, "us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock": { "auth_ref": [ "r589", "r590" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).", "label": "Fair Value, Assets Measured on Recurring Basis [Table Text Block]" } } }, "localname": "FairValueAssetsMeasuredOnRecurringBasisTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-tables" ], "xbrltype": "textBlockItemType" }, "us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain": { "auth_ref": [ "r594" ], "lang": { "en-us": { "role": { "documentation": "Class of asset.", "label": "Asset Class [Domain]" } } }, "localname": "FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-assets-measured-at-fair-value-on-a-nonrecurring-basis-details", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-quantitative-information-about-level-3-fair-value-measurements-details" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueByAssetClassAxis": { "auth_ref": [ "r589", "r597" ], "lang": { "en-us": { "role": { "documentation": "Information by class of asset.", "label": "Asset Class [Axis]" } } }, "localname": "FairValueByAssetClassAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-assets-measured-at-fair-value-on-a-nonrecurring-basis-details", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-quantitative-information-about-level-3-fair-value-measurements-details" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueByBalanceSheetGroupingTextBlock": { "auth_ref": [ "r589", "r602" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities.", "label": "Fair Value, by Balance Sheet Grouping [Table Text Block]" } } }, "localname": "FairValueByBalanceSheetGroupingTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-tables" ], "xbrltype": "textBlockItemType" }, "us-gaap_FairValueByFairValueHierarchyLevelAxis": { "auth_ref": [ "r352", "r366", "r367", "r414", "r416", "r417", "r418", "r419", "r420", "r421", "r457", "r590", "r651", "r652", "r653" ], "lang": { "en-us": { "role": { "documentation": "Information by level within fair value hierarchy and fair value measured at net asset value per share as practical expedient.", "label": "Fair Value Hierarchy and NAV [Axis]" } } }, "localname": "FairValueByFairValueHierarchyLevelAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-assets-measured-at-fair-value-on-a-nonrecurring-basis-details", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-balances-of-assets-measured-at-fair-value-on-recurring-basis-details", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-carrying-values-and-estimated-values-of-financial-instruments-details", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-quantitative-information-about-level-3-fair-value-measurements-details" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueByMeasurementBasisAxis": { "auth_ref": [ "r352", "r366", "r367", "r589", "r598" ], "lang": { "en-us": { "role": { "documentation": "Information by measurement basis.", "label": "Measurement Basis [Axis]" } } }, "localname": "FairValueByMeasurementBasisAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-carrying-values-and-estimated-values-of-financial-instruments-details" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueByMeasurementFrequencyAxis": { "auth_ref": [ "r589", "r590", "r592", "r593", "r599" ], "lang": { "en-us": { "role": { "documentation": "Information by measurement frequency.", "label": "Measurement Frequency [Axis]" } } }, "localname": "FairValueByMeasurementFrequencyAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-assets-measured-at-fair-value-on-a-nonrecurring-basis-details", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-balances-of-assets-measured-at-fair-value-on-recurring-basis-details", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-quantitative-information-about-level-3-fair-value-measurements-details" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueDisclosureOffbalanceSheetRisksAmountAsset": { "auth_ref": [ "r601" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The fair value of financial assets, which are not recognized in the financial statements (off-balance sheet) because they fail to meet some other criterion for recognition.", "label": "Contract amounts represent credit risk" } } }, "localname": "FairValueDisclosureOffbalanceSheetRisksAmountAsset", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-15-commitments-and-unfunded-credits-financial-instruments-representing-credit-risk-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_FairValueDisclosuresTextBlock": { "auth_ref": [ "r596" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.", "label": "Fair Value Disclosures [Text Block]" } } }, "localname": "FairValueDisclosuresTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements" ], "xbrltype": "textBlockItemType" }, "us-gaap_FairValueInputsLevel1Member": { "auth_ref": [ "r352", "r414", "r416", "r421", "r457", "r590", "r651" ], "lang": { "en-us": { "role": { "documentation": "Quoted prices in active markets for identical assets or liabilities that the reporting entity can access at the measurement date.", "label": "Fair Value, Inputs, Level 1 [Member]" } } }, "localname": "FairValueInputsLevel1Member", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-assets-measured-at-fair-value-on-a-nonrecurring-basis-details", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-balances-of-assets-measured-at-fair-value-on-recurring-basis-details", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-carrying-values-and-estimated-values-of-financial-instruments-details" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueInputsLevel2Member": { "auth_ref": [ "r352", "r366", "r367", "r414", "r416", "r421", "r457", "r590", "r652" ], "lang": { "en-us": { "role": { "documentation": "Inputs other than quoted prices included within level 1 that are observable for an asset or liability, either directly or indirectly, including, but not limited to, quoted prices for similar assets or liabilities in active markets, or quoted prices for identical or similar assets or liabilities in inactive markets.", "label": "Fair Value, Inputs, Level 2 [Member]" } } }, "localname": "FairValueInputsLevel2Member", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-assets-measured-at-fair-value-on-a-nonrecurring-basis-details", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-balances-of-assets-measured-at-fair-value-on-recurring-basis-details", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-carrying-values-and-estimated-values-of-financial-instruments-details" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueInputsLevel3Member": { "auth_ref": [ "r352", "r366", "r367", "r414", "r416", "r417", "r418", "r419", "r420", "r421", "r457", "r590", "r653" ], "lang": { "en-us": { "role": { "documentation": "Unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.", "label": "Fair Value, Inputs, Level 3 [Member]" } } }, "localname": "FairValueInputsLevel3Member", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-assets-measured-at-fair-value-on-a-nonrecurring-basis-details", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-balances-of-assets-measured-at-fair-value-on-recurring-basis-details", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-carrying-values-and-estimated-values-of-financial-instruments-details", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-quantitative-information-about-level-3-fair-value-measurements-details" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueMeasurementFrequencyDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Measurement frequency.", "label": "Measurement Frequency [Domain]" } } }, "localname": "FairValueMeasurementFrequencyDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-assets-measured-at-fair-value-on-a-nonrecurring-basis-details", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-balances-of-assets-measured-at-fair-value-on-recurring-basis-details", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-quantitative-information-about-level-3-fair-value-measurements-details" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueMeasurementsFairValueHierarchyDomain": { "auth_ref": [ "r352", "r366", "r367", "r414", "r416", "r417", "r418", "r419", "r420", "r421", "r457", "r651", "r652", "r653" ], "lang": { "en-us": { "role": { "documentation": "Categories used to prioritize the inputs to valuation techniques to measure fair value.", "label": "Fair Value Hierarchy and NAV [Domain]" } } }, "localname": "FairValueMeasurementsFairValueHierarchyDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-assets-measured-at-fair-value-on-a-nonrecurring-basis-details", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-balances-of-assets-measured-at-fair-value-on-recurring-basis-details", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-carrying-values-and-estimated-values-of-financial-instruments-details", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-quantitative-information-about-level-3-fair-value-measurements-details" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueMeasurementsNonrecurringMember": { "auth_ref": [ "r589", "r590", "r592", "r593", "r595", "r599" ], "lang": { "en-us": { "role": { "documentation": "Infrequent fair value measurement. Includes, but is not limited to, fair value adjustment for impairment of asset, liability or equity, not frequently measured at fair value.", "label": "Fair Value, Nonrecurring [Member]" } } }, "localname": "FairValueMeasurementsNonrecurringMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-assets-measured-at-fair-value-on-a-nonrecurring-basis-details", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-quantitative-information-about-level-3-fair-value-measurements-details" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueMeasurementsRecurringMember": { "auth_ref": [ "r596", "r599" ], "lang": { "en-us": { "role": { "documentation": "Frequent fair value measurement. Includes, but is not limited to, fair value adjustment for impairment of asset, liability or equity, frequently measured at fair value.", "label": "Fair Value, Recurring [Member]" } } }, "localname": "FairValueMeasurementsRecurringMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-balances-of-assets-measured-at-fair-value-on-recurring-basis-details" ], "xbrltype": "domainItemType" }, "us-gaap_FederalDepositInsuranceCorporationPremiumExpense": { "auth_ref": [ "r726" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income": { "order": 6.0, "parentTag": "us-gaap_NoninterestExpense", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of expense for Federal Deposit Insurance Corporation (FDIC) insurance.", "label": "FDIC assessment" } } }, "localname": "FederalDepositInsuranceCorporationPremiumExpense", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income" ], "xbrltype": "monetaryItemType" }, "us-gaap_FederalHomeLoanBankStock": { "auth_ref": [ "r745" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-composition-of-restricted-securities-details": { "order": 1.0, "parentTag": "us-gaap_RestrictedInvestments", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Federal Home Loan Bank (FHLB) stock represents an equity interest in a FHLB. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity).", "label": "Federal Home Loan Bank stock", "terseLabel": "Federal Home Loan Bank Stock" } } }, "localname": "FederalHomeLoanBankStock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-composition-of-restricted-securities-details", "http://www.fbvirginia.com/20211231/role/statement-note-8-other-borrowings-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_FederalReserveBankStock": { "auth_ref": [ "r745" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-composition-of-restricted-securities-details": { "order": 2.0, "parentTag": "us-gaap_RestrictedInvestments", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Federal Reserve Bank stock represents an equity interest in the Federal Reserve Bank. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity).", "label": "Federal Reserve Bank stock" } } }, "localname": "FederalReserveBankStock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-composition-of-restricted-securities-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLoanAndLeaseReceivablesHeldForSalePolicy": { "auth_ref": [ "r178", "r196", "r204", "r215" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for financing receivables classified as held-for-sale.", "label": "Financing Receivable, Held-for-sale [Policy Text Block]" } } }, "localname": "FinanceLoanAndLeaseReceivablesHeldForSalePolicy", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-significant-accounting-policies-policies" ], "xbrltype": "textBlockItemType" }, "us-gaap_FinanceLoansAndLeasesReceivablePolicy": { "auth_ref": [ "r178", "r190", "r196", "r204", "r209", "r216", "r217", "r219" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for financing receivable.", "label": "Financing Receivable [Policy Text Block]" } } }, "localname": "FinanceLoansAndLeasesReceivablePolicy", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-significant-accounting-policies-policies" ], "xbrltype": "textBlockItemType" }, "us-gaap_FinancialAssetAcquiredAndNoCreditDeteriorationMember": { "auth_ref": [ "r221" ], "lang": { "en-us": { "role": { "documentation": "Financial asset acquired with no deteriorated credit quality.", "label": "Financial Asset Acquired and No Credit Deterioration [Member]" } } }, "localname": "FinancialAssetAcquiredAndNoCreditDeteriorationMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-loans-acquired-in-business-combinations-details" ], "xbrltype": "domainItemType" }, "us-gaap_FinancialAssetNotPastDueMember": { "auth_ref": [ "r274", "r285" ], "lang": { "en-us": { "role": { "documentation": "Financial asset not past due.", "label": "Financial Asset, Not Past Due [Member]" } } }, "localname": "FinancialAssetNotPastDueMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loan-classes-and-an-aging-of-past-due-loans-details" ], "xbrltype": "domainItemType" }, "us-gaap_FinancialAssetPastDueMember": { "auth_ref": [ "r208", "r274", "r285" ], "lang": { "en-us": { "role": { "documentation": "Financial asset past due.", "label": "Financial Asset, Past Due [Member]" } } }, "localname": "FinancialAssetPastDueMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loan-classes-and-an-aging-of-past-due-loans-details" ], "xbrltype": "domainItemType" }, "us-gaap_FinancialInstrumentAxis": { "auth_ref": [ "r245", "r249", "r262", "r263", "r264", "r271", "r273", "r274", "r277", "r279", "r291", "r293", "r294", "r295", "r363", "r373", "r584", "r648", "r649", "r650", "r651", "r652", "r653", "r654", "r655", "r656", "r659", "r660", "r661", "r662", "r664", "r666", "r667", "r668", "r669", "r670", "r671", "r672", "r673", "r674", "r675", "r676", "r677", "r678", "r679", "r680", "r681", "r842", "r843", "r844", "r845", "r846", "r847", "r848" ], "lang": { "en-us": { "role": { "documentation": "Information by type of financial instrument.", "label": "Financial Instrument [Axis]" } } }, "localname": "FinancialInstrumentAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-15-commitments-and-unfunded-credits-financial-instruments-representing-credit-risk-details", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-details-textual" ], "xbrltype": "stringItemType" }, "us-gaap_FinancialInstrumentPerformanceStatusAxis": { "auth_ref": [ "r279" ], "lang": { "en-us": { "role": { "documentation": "Information by category of performance or non-performance status of financial instruments.", "label": "Financial Instrument Performance Status [Axis]" } } }, "localname": "FinancialInstrumentPerformanceStatusAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-details-textual" ], "xbrltype": "stringItemType" }, "us-gaap_FinancialInstrumentPerformanceStatusDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Category of performance or non-performance status of financial instruments, including but not limited to, financing receivables, loans, debt, and investments.", "label": "Financial Instrument Performance Status [Domain]" } } }, "localname": "FinancialInstrumentPerformanceStatusDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-details-textual" ], "xbrltype": "domainItemType" }, "us-gaap_FinancialServiceOtherMember": { "auth_ref": [ "r387" ], "lang": { "en-us": { "role": { "documentation": "Financial assistance, including, but not limited to, management and maintenance of depositor account, credit card, merchant discount, trust, investment and insurance, classified as other.", "label": "Financial Service, Other [Member]" } } }, "localname": "FinancialServiceOtherMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income" ], "xbrltype": "domainItemType" }, "us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment": { "auth_ref": [ "r183" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.", "label": "Collectively evaluated for impairment, allowance" } } }, "localname": "FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-allowance-by-impairment-methodology-and-loans-by-impairment-methodology-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1": { "auth_ref": [ "r183" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.", "label": "Individually evaluated for impairment, allowance" } } }, "localname": "FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-allowance-by-impairment-methodology-and-loans-by-impairment-methodology-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivableAllowanceForCreditLossesPeriodIncreaseDecrease": { "auth_ref": [ "r179", "r273" ], "lang": { "en-us": { "role": { "documentation": "Amount of increase (decrease) in allowance for credit loss on financing receivable.", "label": "us-gaap_FinancingReceivableAllowanceForCreditLossesPeriodIncreaseDecrease", "terseLabel": "Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease), Total" } } }, "localname": "FinancingReceivableAllowanceForCreditLossesPeriodIncreaseDecrease", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment": { "auth_ref": [ "r184" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The balance of financing receivables that were collectively evaluated for impairment.", "label": "Collectively evaluated for impairment, loans" } } }, "localname": "FinancingReceivableCollectivelyEvaluatedForImpairment", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-allowance-by-impairment-methodology-and-loans-by-impairment-methodology-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivableCreditQualityIndicatorsTableTextBlock": { "auth_ref": [ "r197", "r279" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of financing receivables by credit quality indicator. The credit quality indicator is a statistic about the credit quality of financing receivables. Examples include, but not limited to, consumer credit risk scores, credit-rating-agency ratings, an entity's internal credit risk grades, loan-to-value ratios, collateral, collection experience and other internal metrics.", "label": "Financing Receivable Credit Quality Indicators [Table Text Block]" } } }, "localname": "FinancingReceivableCreditQualityIndicatorsTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-tables" ], "xbrltype": "textBlockItemType" }, "us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment": { "auth_ref": [ "r184" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The balance of financing receivables that were individually evaluated for impairment.", "label": "Individually evaluated for impairment, loans" } } }, "localname": "FinancingReceivableIndividuallyEvaluatedForImpairment", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-allowance-by-impairment-methodology-and-loans-by-impairment-methodology-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivableModificationsNumberOfContracts2": { "auth_ref": [ "r199" ], "lang": { "en-us": { "role": { "documentation": "Number of financing receivables that have been modified by troubled debt restructurings.", "label": "us-gaap_FinancingReceivableModificationsNumberOfContracts2", "terseLabel": "Financing Receivable, Modifications, Number of Contracts" } } }, "localname": "FinancingReceivableModificationsNumberOfContracts2", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-details-textual" ], "xbrltype": "integerItemType" }, "us-gaap_FinancingReceivableModificationsRecordedInvestment": { "auth_ref": [ "r199", "r223" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of financing receivable modified as troubled debt restructuring.", "label": "us-gaap_FinancingReceivableModificationsRecordedInvestment", "terseLabel": "Financing Receivable, Troubled Debt Restructuring" } } }, "localname": "FinancingReceivableModificationsRecordedInvestment", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1": { "auth_ref": [ "r200" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of financing receivable modified as troubled debt restructuring within previous 12 months, with subsequent payment default.", "label": "us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1", "terseLabel": "Financing Receivable, Troubled Debt Restructuring, Subsequent Default" } } }, "localname": "FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivablePortfolioSegmentAxis": { "auth_ref": [ "r271", "r273", "r280", "r842", "r843", "r844", "r845", "r846", "r847", "r848", "r850", "r851", "r852", "r853", "r854", "r855", "r856" ], "lang": { "en-us": { "role": { "documentation": "Information by the level at which an entity develops and documents a systematic methodology to determine its allowance for credit losses.", "label": "Financing Receivable Portfolio Segment [Axis]" } } }, "localname": "FinancingReceivablePortfolioSegmentAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-3-loans", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-analysis-of-the-credit-risk-profile-of-each-loan-class-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-loans-acquired-in-business-combinations-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loan-classes-and-an-aging-of-past-due-loans-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loans-details", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-allowance-by-impairment-methodology-and-loans-by-impairment-methodology-details", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-impaired-loans-and-related-allowances-details" ], "xbrltype": "stringItemType" }, "us-gaap_FinancingReceivablePortfolioSegmentDomain": { "auth_ref": [ "r842", "r843", "r844", "r845", "r846", "r847", "r848", "r850", "r851", "r852", "r853", "r854", "r855", "r856" ], "lang": { "en-us": { "role": { "documentation": "Level at which an entity develops and documents a systematic methodology to determine its allowance for credit losses.", "label": "Financing Receivable Portfolio Segment [Domain]" } } }, "localname": "FinancingReceivablePortfolioSegmentDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-3-loans", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-analysis-of-the-credit-risk-profile-of-each-loan-class-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-loans-acquired-in-business-combinations-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loan-classes-and-an-aging-of-past-due-loans-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loans-details", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-allowance-by-impairment-methodology-and-loans-by-impairment-methodology-details", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-impaired-loans-and-related-allowances-details" ], "xbrltype": "domainItemType" }, "us-gaap_FinancingReceivablePurchasedWithCreditDeteriorationAmountAtPurchasePrice": { "auth_ref": [ "r278" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount at purchase price of financing receivable purchased with credit deterioration.", "label": "us-gaap_FinancingReceivablePurchasedWithCreditDeteriorationAmountAtPurchasePrice", "terseLabel": "Financing Receivable, Purchased with Credit Deterioration, Amount at Purchase Price, Total" } } }, "localname": "FinancingReceivablePurchasedWithCreditDeteriorationAmountAtPurchasePrice", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing": { "auth_ref": [ "r206", "r276", "r285" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of financing receivable 90 days or more past due and still accruing.", "label": "Accruing loans past due 90 days or more amounted" } } }, "localname": "FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loan-classes-and-an-aging-of-past-due-loans-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis": { "auth_ref": [ "r198", "r207", "r208", "r274", "r277", "r279", "r281", "r282", "r284", "r285", "r842", "r843", "r844", "r845", "r846", "r847", "r848", "r850", "r851", "r852", "r853", "r854", "r855", "r856" ], "lang": { "en-us": { "role": { "documentation": "Information by class of financing receivable determined on the basis of initial measurement attribute, risk characteristics and method of monitoring and assessing credit risk.", "label": "Class of Financing Receivable [Axis]" } } }, "localname": "FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-analysis-of-the-credit-risk-profile-of-each-loan-class-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-loans-acquired-in-business-combinations-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loan-classes-and-an-aging-of-past-due-loans-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loans-details", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-allowance-by-impairment-methodology-and-loans-by-impairment-methodology-details", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-impaired-loans-and-related-allowances-details" ], "xbrltype": "stringItemType" }, "us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain": { "auth_ref": [ "r842", "r843", "r844", "r845", "r846", "r847", "r848", "r850", "r851", "r852", "r853", "r854", "r855", "r856" ], "lang": { "en-us": { "role": { "documentation": "Financing receivables determined on the basis of initial measurement attribute, risk characteristics and method of monitoring and assessing credit risk.", "label": "Class of Financing Receivable [Domain]" } } }, "localname": "FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-analysis-of-the-credit-risk-profile-of-each-loan-class-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-loans-acquired-in-business-combinations-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loan-classes-and-an-aging-of-past-due-loans-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loans-details", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-allowance-by-impairment-methodology-and-loans-by-impairment-methodology-details", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-impaired-loans-and-related-allowances-details" ], "xbrltype": "domainItemType" }, "us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus": { "auth_ref": [ "r205", "r275", "r853", "r854" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of financing receivable on nonaccrual status.", "label": "Non-accrual loans" } } }, "localname": "FinancingReceivableRecordedInvestmentNonaccrualStatus", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loan-classes-and-an-aging-of-past-due-loans-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivables30To59DaysPastDueMember": { "auth_ref": [ "r285" ], "lang": { "en-us": { "role": { "documentation": "Financial asset more than 29 days past due but fewer than 60 days past due.", "label": "Financial Asset, 30 to 59 Days Past Due [Member]" } } }, "localname": "FinancingReceivables30To59DaysPastDueMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loan-classes-and-an-aging-of-past-due-loans-details" ], "xbrltype": "domainItemType" }, "us-gaap_FinancingReceivables60To89DaysPastDueMember": { "auth_ref": [ "r285" ], "lang": { "en-us": { "role": { "documentation": "Financial asset more than 59 days past due but fewer than 90 days past due.", "label": "Financial Asset, 60 to 89 Days Past Due [Member]" } } }, "localname": "FinancingReceivables60To89DaysPastDueMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loan-classes-and-an-aging-of-past-due-loans-details" ], "xbrltype": "domainItemType" }, "us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember": { "auth_ref": [ "r285" ], "lang": { "en-us": { "role": { "documentation": "Financial asset equal to or greater than 90 days past due.", "label": "Financial Asset, Equal to or Greater than 90 Days Past Due [Member]" } } }, "localname": "FinancingReceivablesEqualToGreaterThan90DaysPastDueMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loan-classes-and-an-aging-of-past-due-loans-details" ], "xbrltype": "domainItemType" }, "us-gaap_FinancingReceivablesPeriodPastDueAxis": { "auth_ref": [ "r208", "r274", "r285" ], "lang": { "en-us": { "role": { "documentation": "Information by period in which financial asset is past due or not past due.", "label": "Financial Asset, Aging [Axis]" } } }, "localname": "FinancingReceivablesPeriodPastDueAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loan-classes-and-an-aging-of-past-due-loans-details" ], "xbrltype": "stringItemType" }, "us-gaap_FinancingReceivablesPeriodPastDueDomain": { "auth_ref": [ "r208", "r274", "r285" ], "lang": { "en-us": { "role": { "documentation": "Period in which financial asset is past due or not past due. For past due, element name and standard label in Financial Asset, [numeric lower end] to [numeric higher end] [date measure] Past Due [Member] or Financial Asset, Greater than [low end numeric value] [date measure] Past Due [Member] or Financial Asset, Less than [high end numeric value] [date measure] Past Due [Member] formats.", "label": "Financial Asset, Aging [Domain]" } } }, "localname": "FinancingReceivablesPeriodPastDueDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loan-classes-and-an-aging-of-past-due-loans-details" ], "xbrltype": "domainItemType" }, "us-gaap_FiniteLivedIntangibleAssetUsefulLife": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.", "label": "us-gaap_FiniteLivedIntangibleAssetUsefulLife", "terseLabel": "Finite-Lived Intangible Asset, Useful Life (Year)" } } }, "localname": "FiniteLivedIntangibleAssetUsefulLife", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual" ], "xbrltype": "durationItemType" }, "us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis": { "auth_ref": [ "r301", "r302", "r306", "r308", "r687", "r688" ], "lang": { "en-us": { "role": { "documentation": "Information by major type or class of finite-lived intangible assets.", "label": "Finite-Lived Intangible Assets by Major Class [Axis]" } } }, "localname": "FiniteLivedIntangibleAssetsByMajorClassAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies", "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual" ], "xbrltype": "stringItemType" }, "us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain": { "auth_ref": [ "r301", "r305" ], "lang": { "en-us": { "role": { "documentation": "The major class of finite-lived intangible asset (for example, patents, trademarks, copyrights, etc.) A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.", "label": "Finite-Lived Intangible Assets, Major Class Name [Domain]" } } }, "localname": "FiniteLivedIntangibleAssetsMajorClassNameDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies", "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual" ], "xbrltype": "domainItemType" }, "us-gaap_FurnitureAndFixturesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Equipment commonly used in offices and stores that have no permanent connection to the structure of a building or utilities. Examples include, but are not limited to, desks, chairs, tables, and bookcases.", "label": "Furniture and Fixtures [Member]" } } }, "localname": "FurnitureAndFixturesMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-6-premises-and-equipment-premises-and-equipment-details" ], "xbrltype": "domainItemType" }, "us-gaap_GainLossOnSaleOfPropertyPlantEquipment": { "auth_ref": [ "r95" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-": { "order": 18.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 }, "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income": { "order": 3.0, "parentTag": "us-gaap_NoninterestIncome", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.", "label": "Net gains on disposal of premises and equipment", "negatedTerseLabel": "(Gains) on disposal of premises and equipment" } } }, "localname": "GainLossOnSaleOfPropertyPlantEquipment", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-", "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income" ], "xbrltype": "monetaryItemType" }, "us-gaap_GainLossOnSalesOfLoansNet": { "auth_ref": [ "r95", "r722", "r783" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-": { "order": 6.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 }, "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income": { "order": 2.0, "parentTag": "us-gaap_NoninterestIncome", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The net gain (loss) resulting from a sale of loans, including adjustments to record loans classified as held-for-sale at the lower-of-cost-or-market and fair value adjustments to loan held for investment purposes.", "label": "Net gains on sale of loans", "negatedLabel": "Net gains on sales of loans held for sale" } } }, "localname": "GainLossOnSalesOfLoansNet", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-", "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income" ], "xbrltype": "monetaryItemType" }, "us-gaap_GainsLossesOnSalesOfOtherRealEstate": { "auth_ref": [ "r725" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-": { "order": 2.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The net gain (loss) resulting from sales and other disposals of other real estate owned, increases (decreases) in the valuation allowance for foreclosed real estate, and write-downs of other real estate owned after acquisition or physical possession.", "label": "us-gaap_GainsLossesOnSalesOfOtherRealEstate", "negatedLabel": "Net gains on sale of other real estate owned", "terseLabel": "Gain on disposition" } } }, "localname": "GainsLossesOnSalesOfOtherRealEstate", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-", "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned-changes-in-balance-for-oreo-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_Goodwill": { "auth_ref": [ "r297", "r298", "r643", "r693" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets": { "order": 8.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.", "label": "Goodwill", "verboseLabel": "Goodwill resulting from acquisitions" } } }, "localname": "Goodwill", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_GoodwillAndIntangibleAssetsIntangibleAssetsPolicy": { "auth_ref": [ "r303" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for intangible assets. This accounting policy may address both intangible assets subject to amortization and those that are not. The following also may be disclosed: (1) a description of intangible assets (2) the estimated useful lives of those assets (3) the amortization method used (4) how the entity assesses and measures impairment of such assets (5) how future cash flows are estimated (6) how the fair values of such asset are determined.", "label": "Goodwill and Intangible Assets, Intangible Assets, Policy [Policy Text Block]" } } }, "localname": "GoodwillAndIntangibleAssetsIntangibleAssetsPolicy", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-significant-accounting-policies-policies" ], "xbrltype": "textBlockItemType" }, "us-gaap_HedgingDesignationAxis": { "auth_ref": [ "r567", "r577" ], "lang": { "en-us": { "role": { "documentation": "Information by designation of purpose of derivative instrument.", "label": "Hedging Designation [Axis]" } } }, "localname": "HedgingDesignationAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-derivative-instruments-components-details" ], "xbrltype": "stringItemType" }, "us-gaap_HedgingDesignationDomain": { "auth_ref": [ "r567" ], "lang": { "en-us": { "role": { "documentation": "Designation of purpose of derivative instrument.", "label": "Hedging Designation [Domain]" } } }, "localname": "HedgingDesignationDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-derivative-instruments-components-details" ], "xbrltype": "domainItemType" }, "us-gaap_HeldToMaturitySecurities": { "auth_ref": [ "r208", "r237", "r270", "r274" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount, before allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity).", "label": "Amortized cost, held to maturity securities", "verboseLabel": "Securities held to maturity" } } }, "localname": "HeldToMaturitySecurities", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-carrying-values-and-estimated-values-of-financial-instruments-details", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-amortized-cost-and-fair-value-of-securities-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain": { "auth_ref": [ "r239", "r247" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of accumulated unrecognized gain on investment in debt security measured at amortized cost (held-to-maturity).", "label": "Gross unrealized gains, held to maturity securities" } } }, "localname": "HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-summary-of-amortized-costs-and-fair-values-of-securities-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss": { "auth_ref": [ "r240", "r248" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of accumulated unrealized loss on investment in debt security measured at amortized cost (held-to-maturity).", "label": "us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss", "negatedLabel": "Gross unrealized losses, held to maturity securities" } } }, "localname": "HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-summary-of-amortized-costs-and-fair-values-of-securities-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment": { "auth_ref": [], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets": { "order": 3.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount, before other-than-temporary impairment (OTTI) accretion, of investment in debt securities measured at amortized cost (held-to-maturity).", "label": "Securities held to maturity, at amortized cost (fair value, 2021, $33,617; 2020, $14,743)", "terseLabel": "Amortized cost, held to maturity securities" } } }, "localname": "HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-summary-of-amortized-costs-and-fair-values-of-securities-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss": { "auth_ref": [ "r255", "r258" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of accumulated unrealized loss on investment in debt security measured at amortized cost (held-to-maturity), in continuous loss position for 12 months or longer.", "label": "us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss", "negatedLabel": "12 months or more, unrealized (loss), available for sale securities" } } }, "localname": "HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-investments-in-an-unrealized-loss-position-that-were-temporarily-impaired-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss": { "auth_ref": [ "r255" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of accumulated unrealized loss on investment in debt security measured at amortized cost (held-to-maturity), in unrealized loss position.", "label": "us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss", "negatedLabel": "Total, unrealized (loss), held to maturity securities" } } }, "localname": "HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-investments-in-an-unrealized-loss-position-that-were-temporarily-impaired-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue": { "auth_ref": [ "r254" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Fair value of investment in debt security measured at amortized cost (held-to-maturity), in unrealized loss position.", "label": "Total, fair value, held to maturity securities" } } }, "localname": "HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-investments-in-an-unrealized-loss-position-that-were-temporarily-impaired-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss": { "auth_ref": [ "r255", "r258" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of accumulated unrealized loss on investment in debt security measured at amortized cost (held-to-maturity), in continuous loss position for less than 12 months.", "label": "us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss", "negatedLabel": "Less than 12 months, fair value, held to maturity securities" } } }, "localname": "HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-investments-in-an-unrealized-loss-position-that-were-temporarily-impaired-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue": { "auth_ref": [ "r258" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Fair value of investment in debt security measured at amortized cost (held-to-maturity), in continuous unrealized loss position for less than 12 months.", "label": "Less than 12 months, fair value, held to maturity securities" } } }, "localname": "HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-investments-in-an-unrealized-loss-position-that-were-temporarily-impaired-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue": { "auth_ref": [ "r258" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Fair value of investment in debt security measured at amortized cost (held-to-maturity), in continuous unrealized loss position for 12 months or longer.", "label": "12 months or more, fair value, held to maturity securities" } } }, "localname": "HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-investments-in-an-unrealized-loss-position-that-were-temporarily-impaired-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue": { "auth_ref": [ "r243", "r252", "r738", "r742" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Fair value of investment in debt security measured at amortized cost (held-to-maturity), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Due after five years through ten years, fair value, held to maturity securities" } } }, "localname": "HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-amortized-cost-and-fair-value-of-securities-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount": { "auth_ref": [ "r243", "r738" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount, after allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity) with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Due after five years through ten years, amortized cost, held to maturity securities" } } }, "localname": "HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-amortized-cost-and-fair-value-of-securities-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue": { "auth_ref": [ "r242", "r251", "r737", "r741" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Fair value of investment in debt security measured at amortized cost (held-to-maturity), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Due after one year through five years, fair value, held to maturity securities" } } }, "localname": "HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-amortized-cost-and-fair-value-of-securities-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount": { "auth_ref": [ "r242", "r737" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount, after allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity) with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Due after one year through five years, amortized cost, held to maturity securities" } } }, "localname": "HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-amortized-cost-and-fair-value-of-securities-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue": { "auth_ref": [ "r244", "r253", "r739", "r743" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Fair value of investment in debt security measured at amortized cost (held-to-maturity), with single maturity date and allocated without single maturity date, maturing after tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Due after ten years, fair value, held to maturity securities" } } }, "localname": "HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-amortized-cost-and-fair-value-of-securities-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount": { "auth_ref": [ "r244", "r739" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount, after allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity) with single maturity date and allocated without single maturity date, maturing after tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Due after ten years, amortized cost, held to maturity securities" } } }, "localname": "HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-amortized-cost-and-fair-value-of-securities-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue": { "auth_ref": [ "r241", "r250", "r736", "r740" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Fair value of investment in debt security measured at amortized cost (held-to-maturity), with single maturity date and allocated without single maturity date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Due within one year, fair value, held to maturity securities" } } }, "localname": "HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-amortized-cost-and-fair-value-of-securities-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount": { "auth_ref": [ "r241", "r736" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount, after allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity) with single maturity date and allocated without single maturity date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Due within one year, amortized cost, held to maturity securities" } } }, "localname": "HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-amortized-cost-and-fair-value-of-securities-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_HeldToMaturitySecuritiesFairValue": { "auth_ref": [ "r238", "r246", "r700" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Fair value of investment in debt security measured at amortized cost (held-to-maturity).", "label": "Securities, fair value", "terseLabel": "Fair value, held to maturity securities" } } }, "localname": "HeldToMaturitySecuritiesFairValue", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets-parentheticals", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-amortized-cost-and-fair-value-of-securities-details", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-summary-of-amortized-costs-and-fair-values-of-securities-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment": { "auth_ref": [ "r192", "r195" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.", "label": "Impaired loans, average recorded investment" } } }, "localname": "ImpairedFinancingReceivableAverageRecordedInvestment", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-impaired-loans-and-related-allowances-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_ImpairedFinancingReceivableInterestIncomeCashBasisMethod": { "auth_ref": [ "r193" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of interest income recognized on a cash-basis method of accounting that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired.", "label": "Impaired loans, interest income recognized" } } }, "localname": "ImpairedFinancingReceivableInterestIncomeCashBasisMethod", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-impaired-loans-and-related-allowances-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_ImpairedFinancingReceivablePolicyPolicyTextBlock": { "auth_ref": [ "r186", "r191" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for recognizing interest income on impaired financing receivables, including how cash receipts are recorded, the policy for determining which loans the entity assess for impairment, and the factors the creditor considered in determining that the financing receivable is impaired.", "label": "Impaired Financing Receivable, Policy [Policy Text Block]" } } }, "localname": "ImpairedFinancingReceivablePolicyPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-significant-accounting-policies-policies" ], "xbrltype": "textBlockItemType" }, "us-gaap_ImpairedFinancingReceivableRecordedInvestment": { "auth_ref": [ "r187" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.", "label": "Impaired loans, total recorded investment" } } }, "localname": "ImpairedFinancingReceivableRecordedInvestment", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-impaired-loans-and-related-allowances-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_ImpairedFinancingReceivableRelatedAllowance": { "auth_ref": [ "r188" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of allowance for credit losses related to recorded investment.", "label": "Impaired loans, related allowance" } } }, "localname": "ImpairedFinancingReceivableRelatedAllowance", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-impaired-loans-and-related-allowances-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance": { "auth_ref": [ "r189" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of unpaid principal balance of impaired financing receivables with related allowance for credit losses and without related allowance for credit losses.", "label": "Impaired loans, unpaid principal balance" } } }, "localname": "ImpairedFinancingReceivableUnpaidPrincipalBalance", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-impaired-loans-and-related-allowances-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment": { "auth_ref": [ "r187" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of investment in impaired financing receivables for which there is no related allowance for credit losses.", "label": "Impaired loans, recorded investment with no allowance" } } }, "localname": "ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-impaired-loans-and-related-allowances-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment": { "auth_ref": [ "r187" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of investment in impaired financing receivables for which there is a related allowance for credit losses.", "label": "Impaired loans, recorded investment with allowance" } } }, "localname": "ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-impaired-loans-and-related-allowances-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_ImpairedFinancingReceivablesTableTextBlock": { "auth_ref": [ "r194" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of impaired financing receivables.", "label": "Impaired Financing Receivables [Table Text Block]" } } }, "localname": "ImpairedFinancingReceivablesTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-tables" ], "xbrltype": "textBlockItemType" }, "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest": { "auth_ref": [ "r62", "r161", "r163", "r166", "r169", "r171", "r689", "r712", "r734", "r781" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income": { "order": 0.0, "parentTag": "us-gaap_NetIncomeLoss", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.", "label": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest", "totalLabel": "Income before income taxes" } } }, "localname": "IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments": { "auth_ref": [ "r161", "r163", "r166", "r169", "r171" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments.", "label": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments", "verboseLabel": "Income before allocated tax benefits and undistributed income of subsidiary" } } }, "localname": "IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-income-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeLossFromEquityMethodInvestments": { "auth_ref": [ "r63", "r95", "r159", "r265", "r710", "r774" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of income (loss) for proportionate share of equity method investee's income (loss).", "label": "us-gaap_IncomeLossFromEquityMethodInvestments", "verboseLabel": "Equity in undistributed income of subsidiary" } } }, "localname": "IncomeLossFromEquityMethodInvestments", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-income-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions": { "auth_ref": [ "r95" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "This element represents the undistributed income (or loss) of equity method investments, net of dividends or other distributions received from unconsolidated subsidiaries, certain corporate joint ventures, and certain noncontrolled corporations; such investments are accounted for under the equity method of accounting. This element excludes distributions that constitute a return of investment, which are classified as investing activities.", "label": "us-gaap_IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions", "verboseLabel": "Equity in undistributed income of subsidiary" } } }, "localname": "IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-cash-flows-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeStatementAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Income Statement [Abstract]" } } }, "localname": "IncomeStatementAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "xbrltype": "stringItemType" }, "us-gaap_IncomeTaxDisclosureTextBlock": { "auth_ref": [ "r110", "r508", "r509", "r515", "r524", "r529", "r531", "r532", "r533" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.", "label": "Income Tax Disclosure [Text Block]" } } }, "localname": "IncomeTaxDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes" ], "xbrltype": "textBlockItemType" }, "us-gaap_IncomeTaxExpenseBenefit": { "auth_ref": [ "r111", "r127", "r128", "r160", "r506", "r525", "r530", "r782" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income": { "order": 1.0, "parentTag": "us-gaap_NetIncomeLoss", "weight": -1.0 }, "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-income-tax-expense-details": { "order": null, "parentTag": null, "root": true, "weight": null }, "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-income-tax-rate-reconciliation-details": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.", "label": "Income tax expense", "totalLabel": "Income Tax Expense (Benefit), Total", "verboseLabel": "Allocated income tax benefit" } } }, "localname": "IncomeTaxExpenseBenefit", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income", "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-income-tax-expense-details", "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-income-tax-rate-reconciliation-details", "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-reclassifications-from-accumulated-other-comprehensive-loss-details", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-income-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeTaxPolicyTextBlock": { "auth_ref": [ "r54", "r504", "r505", "r509", "r510", "r514", "r521" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for income taxes, which may include its accounting policies for recognizing and measuring deferred tax assets and liabilities and related valuation allowances, recognizing investment tax credits, operating loss carryforwards, tax credit carryforwards, and other carryforwards, methodologies for determining its effective income tax rate and the characterization of interest and penalties in the financial statements.", "label": "Income Tax, Policy [Policy Text Block]" } } }, "localname": "IncomeTaxPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-significant-accounting-policies-policies" ], "xbrltype": "textBlockItemType" }, "us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate": { "auth_ref": [ "r507" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-income-tax-rate-reconciliation-details": { "order": 3.0, "parentTag": "us-gaap_IncomeTaxExpenseBenefit", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.", "label": "Computed tax expense at statutory federal rate" } } }, "localname": "IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-income-tax-rate-reconciliation-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeTaxReconciliationNondeductibleExpenseRestructuringCharges": { "auth_ref": [ "r507" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-income-tax-rate-reconciliation-details": { "order": 4.0, "parentTag": "us-gaap_IncomeTaxExpenseBenefit", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible restructuring charges.", "label": "Merger expenses" } } }, "localname": "IncomeTaxReconciliationNondeductibleExpenseRestructuringCharges", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-income-tax-rate-reconciliation-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeTaxReconciliationOtherAdjustments": { "auth_ref": [ "r507" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-income-tax-rate-reconciliation-details": { "order": 2.0, "parentTag": "us-gaap_IncomeTaxExpenseBenefit", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments.", "label": "Other" } } }, "localname": "IncomeTaxReconciliationOtherAdjustments", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-income-tax-rate-reconciliation-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeTaxReconciliationTaxExemptIncome": { "auth_ref": [ "r507" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-income-tax-rate-reconciliation-details": { "order": 0.0, "parentTag": "us-gaap_IncomeTaxExpenseBenefit", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to income (loss) exempt from income taxes.", "label": "us-gaap_IncomeTaxReconciliationTaxExemptIncome", "negatedLabel": "Tax-exempt interest and dividend income" } } }, "localname": "IncomeTaxReconciliationTaxExemptIncome", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-income-tax-rate-reconciliation-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeTaxesPaidNet": { "auth_ref": [ "r99" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.", "label": "Income taxes" } } }, "localname": "IncomeTaxesPaidNet", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInAccruedInterestReceivableNet": { "auth_ref": [ "r94" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-": { "order": 15.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The increase (decrease) during the reporting period in the amount due from borrowers for interest payments.", "label": "us-gaap_IncreaseDecreaseInAccruedInterestReceivableNet", "negatedLabel": "Decrease (increase) in interest receivable" } } }, "localname": "IncreaseDecreaseInAccruedInterestReceivableNet", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities": { "auth_ref": [ "r94" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-": { "order": 11.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of increase (decrease) in accrued expenses, and obligations classified as other.", "label": "(Decrease) increase in accrued expenses and other liabilities", "verboseLabel": "Increase in other liabilities" } } }, "localname": "IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-cash-flows-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInOperatingCapitalAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Changes in assets and liabilities:" } } }, "localname": "IncreaseDecreaseInOperatingCapitalAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-" ], "xbrltype": "stringItemType" }, "us-gaap_IncreaseDecreaseInOtherOperatingAssets": { "auth_ref": [ "r94" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-": { "order": 9.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of increase (decrease) in operating assets classified as other.", "label": "us-gaap_IncreaseDecreaseInOtherOperatingAssets", "negatedLabel": "(Increase) decrease in other assets", "verboseLabel": "(Increase) decrease in other assets" } } }, "localname": "IncreaseDecreaseInOtherOperatingAssets", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-cash-flows-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInTimeDeposits": { "auth_ref": [ "r732" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-": { "order": 3.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Net cash inflow (outflow) of time deposits.", "label": "Net decrease in time deposits" } } }, "localname": "IncreaseDecreaseInTimeDeposits", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-" ], "xbrltype": "monetaryItemType" }, "us-gaap_InformationTechnologyAndDataProcessing": { "auth_ref": [ "r75" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income": { "order": 4.0, "parentTag": "us-gaap_NoninterestExpense", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of expenses incurred in the period for information technology and data processing products and services.", "label": "Data processing expense", "verboseLabel": "Data processing" } } }, "localname": "InformationTechnologyAndDataProcessing", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-income-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_IntangibleAssetsFiniteLivedPolicy": { "auth_ref": [ "r105", "r305", "r683", "r684", "r685", "r687" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for finite-lived intangible assets. This accounting policy also might address: (1) the amortization method used; (2) the useful lives of such assets; and (3) how the entity assesses and measures impairment of such assets.", "label": "Intangible Assets, Finite-Lived, Policy [Policy Text Block]" } } }, "localname": "IntangibleAssetsFiniteLivedPolicy", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-significant-accounting-policies-policies" ], "xbrltype": "textBlockItemType" }, "us-gaap_IntangibleAssetsNetExcludingGoodwill": { "auth_ref": [ "r299", "r304" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets": { "order": 7.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.", "label": "Core deposit intangibles, net" } } }, "localname": "IntangibleAssetsNetExcludingGoodwill", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestAndDividendIncomeOperating": { "auth_ref": [ "r718" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Represents the total of interest and dividend income, including any amortization and accretion (as applicable) of discounts and premiums, earned from (1) loans and leases whether held-for-sale or held-in-portfolio; (2) investment securities; (3) federal funds sold; (4) securities purchased under agreements to resell; (5) investments in banker's acceptances, commercial paper, or certificates of deposit; (6) dividend income; or (7) other investments not otherwise specified herein.", "label": "us-gaap_InterestAndDividendIncomeOperating", "totalLabel": "Total interest and dividend income" } } }, "localname": "InterestAndDividendIncomeOperating", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestAndDividendIncomeOperatingAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Interest and Dividend Income" } } }, "localname": "InterestAndDividendIncomeOperatingAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income" ], "xbrltype": "stringItemType" }, "us-gaap_InterestAndFeeIncomeLoansAndLeases": { "auth_ref": [ "r717" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income": { "order": 0.0, "parentTag": "us-gaap_InterestAndDividendIncomeOperating", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The aggregate interest and fee income generated by: (1) loans the Entity has positive intent and ability to hold for the foreseeable future, or until maturity or payoff, including commercial and consumer loans, whether domestic or foreign, which may consist of: (a) industrial and agricultural; (b) real estate; and (c) real estate construction loans; (d) trade financing; (e) lease financing; (f) home equity lines-of-credit; (g) automobile and other vehicle loans; and (h) credit card and other revolving-type loans and (2) loans and leases held-for-sale which may include mortgage loans, direct financing, and sales-type leases.", "label": "Interest and fees on loans" } } }, "localname": "InterestAndFeeIncomeLoansAndLeases", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestBearingDepositLiabilities": { "auth_ref": [ "r703" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets": { "order": 0.0, "parentTag": "us-gaap_Deposits", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The aggregate of all domestic and foreign interest-bearing deposit liabilities.", "label": "Savings and interest-bearing demand deposits" } } }, "localname": "InterestBearingDepositLiabilities", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestBearingDepositsInBanks": { "auth_ref": [ "r691", "r707" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets": { "order": 6.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "For banks and other depository institutions (including Federal Reserve Banks, if applicable): Interest-bearing deposits in other financial institutions for relatively short periods of time including, for example, certificates of deposits, which are presented separately from cash on the balance sheet.", "label": "Interest-bearing deposits in banks" } } }, "localname": "InterestBearingDepositsInBanks", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestExpense": { "auth_ref": [ "r60", "r158", "r613", "r616", "r731" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of the cost of borrowed funds accounted for as interest expense.", "label": "us-gaap_InterestExpense", "totalLabel": "Total interest expense", "verboseLabel": "Interest expense" } } }, "localname": "InterestExpense", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-income-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestExpenseAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Interest Expense" } } }, "localname": "InterestExpenseAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income" ], "xbrltype": "stringItemType" }, "us-gaap_InterestExpenseDeposits": { "auth_ref": [ "r729" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income": { "order": 0.0, "parentTag": "us-gaap_InterestExpense", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Aggregate amount of interest expense on all deposits.", "label": "Interest on deposits" } } }, "localname": "InterestExpenseDeposits", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestExpenseJuniorSubordinatedDebentures": { "auth_ref": [ "r730" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income": { "order": 2.0, "parentTag": "us-gaap_InterestExpense", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Interest expense incurred during the reporting period on junior subordinated debentures. Includes amortization of expenses incurred in the issuance of subordinated notes and debentures.", "label": "Interest on junior subordinated debt" } } }, "localname": "InterestExpenseJuniorSubordinatedDebentures", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestExpenseSubordinatedNotesAndDebentures": { "auth_ref": [ "r730" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income": { "order": 1.0, "parentTag": "us-gaap_InterestExpense", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Interest expense incurred during the reporting period on subordinated notes and debentures. Includes amortization of expenses incurred in the issuance of subordinated notes and debentures.", "label": "Interest on subordinated debt" } } }, "localname": "InterestExpenseSubordinatedNotesAndDebentures", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestIncomeDebtSecuritiesOperatingAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Interest and dividends on securities:" } } }, "localname": "InterestIncomeDebtSecuritiesOperatingAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income" ], "xbrltype": "stringItemType" }, "us-gaap_InterestIncomeDepositsWithFinancialInstitutions": { "auth_ref": [ "r728", "r842", "r843" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income": { "order": 1.0, "parentTag": "us-gaap_InterestAndDividendIncomeOperating", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Interest income derived from funds deposited with both domestic and foreign financial institutions including funds in money market and other accounts.", "label": "Interest on deposits in banks" } } }, "localname": "InterestIncomeDepositsWithFinancialInstitutions", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss": { "auth_ref": [ "r721" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income": { "order": 2.0, "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of interest income or expense, including any amortization and accretion (as applicable) of discounts and premiums, including consideration of the provisions for loan, lease, credit, and other related losses.", "label": "us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss", "totalLabel": "Net interest income after (recovery of) provision for loan losses" } } }, "localname": "InterestIncomeExpenseAfterProvisionForLoanLoss", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestIncomeExpenseNet": { "auth_ref": [ "r719" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income": { "order": 0.0, "parentTag": "us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The net amount of operating interest income (expense).", "label": "Net interest income" } } }, "localname": "InterestIncomeExpenseNet", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestIncomeFederalFundsSold": { "auth_ref": [ "r728", "r842", "r843" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income": { "order": 4.0, "parentTag": "us-gaap_InterestAndDividendIncomeOperating", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Interest income on federal funds sold. Federal funds sold represent the excess federal funds held by one commercial bank which it lends to another commercial bank, usually at an agreed-upon (federal funds) rate of interest. Such loans generally are of short-duration (overnight).", "label": "Interest on federal funds sold" } } }, "localname": "InterestIncomeFederalFundsSold", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestIncomeSecuritiesTaxExempt": { "auth_ref": [ "r727", "r842", "r843" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income": { "order": 2.0, "parentTag": "us-gaap_InterestAndDividendIncomeOperating", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of operating interest income, including amortization and accretion of premiums and discounts, on securities exempt from state, federal and other income tax.", "label": "Tax-exempt interest" } } }, "localname": "InterestIncomeSecuritiesTaxExempt", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestIncomeSecuritiesTaxable": { "auth_ref": [ "r727", "r842", "r843" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income": { "order": 5.0, "parentTag": "us-gaap_InterestAndDividendIncomeOperating", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of operating interest income, including amortization and accretion of premiums and discounts, on securities subject to state, federal and other income tax.", "label": "Taxable interest" } } }, "localname": "InterestIncomeSecuritiesTaxable", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestPaidNet": { "auth_ref": [ "r89", "r92", "r99" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount.", "label": "Interest" } } }, "localname": "InterestPaidNet", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestRateSwapMember": { "auth_ref": [ "r575" ], "lang": { "en-us": { "role": { "documentation": "Forward based contracts in which two parties agree to swap periodic payments that are fixed at the outset of the swap contract with variable payments based on a market interest rate (index rate) over a specified period.", "label": "Interest Rate Swap [Member]" } } }, "localname": "InterestRateSwapMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-", "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-derivative-instruments-components-details", "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-details-textual" ], "xbrltype": "domainItemType" }, "us-gaap_InterestReceivable": { "auth_ref": [ "r34" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Carrying amount as of the balance sheet date of interest earned but not received. Also called accrued interest or accrued interest receivable.", "label": "us-gaap_InterestReceivable", "verboseLabel": "Accrued interest receivable" } } }, "localname": "InterestReceivable", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-carrying-values-and-estimated-values-of-financial-instruments-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterimPeriodCostsNotAllocableDomain": { "auth_ref": [ "r145" ], "lang": { "en-us": { "role": { "documentation": "This element represents the type of costs and expenses incurred during an interim period that cannot be readily identified with the activities or benefits of other interim periods and are charged to the interim period in which incurred.", "label": "Interim Period, Costs Not Allocable [Domain]" } } }, "localname": "InterimPeriodCostsNotAllocableDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-details-textual" ], "xbrltype": "domainItemType" }, "us-gaap_InternalCreditAssessmentAxis": { "auth_ref": [ "r197", "r279", "r283", "r284", "r321", "r578" ], "lang": { "en-us": { "role": { "documentation": "Information by entity-defined rating.", "label": "Internal Credit Assessment [Axis]" } } }, "localname": "InternalCreditAssessmentAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-analysis-of-the-credit-risk-profile-of-each-loan-class-details" ], "xbrltype": "stringItemType" }, "us-gaap_InternalCreditAssessmentDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Entity defined credit risk rating.", "label": "Internal Credit Assessment [Domain]" } } }, "localname": "InternalCreditAssessmentDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-analysis-of-the-credit-risk-profile-of-each-loan-class-details" ], "xbrltype": "domainItemType" }, "us-gaap_InvestmentIncomeDividend": { "auth_ref": [ "r76" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of dividend income on nonoperating securities.", "label": "us-gaap_InvestmentIncomeDividend", "verboseLabel": "Dividends from subsidiary" } } }, "localname": "InvestmentIncomeDividend", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-income-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_InvestmentPolicyTextBlock": { "auth_ref": [ "r266", "r779" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for investment in financial asset.", "label": "Investment, Policy [Policy Text Block]" } } }, "localname": "InvestmentPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-significant-accounting-policies-policies" ], "xbrltype": "textBlockItemType" }, "us-gaap_InvestmentTypeAxis": { "auth_ref": [ "r798", "r799", "r800", "r801", "r802", "r803", "r804", "r805", "r806", "r807", "r808", "r809", "r810", "r811", "r812" ], "lang": { "en-us": { "role": { "documentation": "Information by type of investments.", "label": "Investment Type [Axis]" } } }, "localname": "InvestmentTypeAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-balances-of-assets-measured-at-fair-value-on-recurring-basis-details", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-investments-in-an-unrealized-loss-position-that-were-temporarily-impaired-details", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-summary-of-amortized-costs-and-fair-values-of-securities-details" ], "xbrltype": "stringItemType" }, "us-gaap_InvestmentTypeCategorizationMember": { "auth_ref": [ "r798", "r799", "r800", "r801", "r802", "r803", "r804", "r805", "r806", "r807", "r808", "r809", "r810", "r811", "r812" ], "lang": { "en-us": { "role": { "documentation": "Asset obtained to generate income or appreciate in value.", "label": "Investments [Domain]" } } }, "localname": "InvestmentTypeCategorizationMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-balances-of-assets-measured-at-fair-value-on-recurring-basis-details", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-investments-in-an-unrealized-loss-position-that-were-temporarily-impaired-details", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-summary-of-amortized-costs-and-fair-values-of-securities-details" ], "xbrltype": "domainItemType" }, "us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments.", "label": "Investments Classified by Contractual Maturity Date [Table Text Block]" } } }, "localname": "InvestmentsClassifiedByContractualMaturityDateTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-tables" ], "xbrltype": "textBlockItemType" }, "us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures": { "auth_ref": [ "r21" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of investment in equity method investee and investment in and advance to affiliate.", "label": "us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures", "verboseLabel": "Investment in subsidiaries, at cost, plus undistributed net income" } } }, "localname": "InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-balance-sheet-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock": { "auth_ref": [ "r261", "r690", "r744", "r813", "r849" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for investments in certain debt and equity securities.", "label": "Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]" } } }, "localname": "InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities" ], "xbrltype": "textBlockItemType" }, "us-gaap_JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust": { "auth_ref": [ "r705", "r773" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Including the current and noncurrent portions, the carrying value of junior subordinated long-term debt owed to unconsolidated subsidiary trusts as of the balance sheet date. Such debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets and was initially scheduled to be repaid after one year or beyond the normal operating cycle if longer.", "label": "us-gaap_JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust", "terseLabel": "Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust, Total" } } }, "localname": "JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-10-junior-subordinated-debt-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_JuniorSubordinatedNotes": { "auth_ref": [ "r9", "r698", "r762" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets": { "order": 2.0, "parentTag": "us-gaap_Liabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Including the current and noncurrent portions, carrying value as of the balance sheet date of long-term debt (with maturities initially due after one year or beyond the operating cycle if longer) identified as Junior Subordinated Notes, which have a lower priority than senior instruments.", "label": "Junior subordinated debt", "verboseLabel": "Junior subordinated debt" } } }, "localname": "JuniorSubordinatedNotes", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-balance-sheet-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_LaborAndRelatedExpense": { "auth_ref": [ "r71" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income": { "order": 11.0, "parentTag": "us-gaap_NoninterestExpense", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of expense for salary, wage, profit sharing; incentive and equity-based compensation; and other employee benefit.", "label": "Salaries and employee benefits" } } }, "localname": "LaborAndRelatedExpense", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income" ], "xbrltype": "monetaryItemType" }, "us-gaap_LandMember": { "auth_ref": [ "r387" ], "lang": { "en-us": { "role": { "documentation": "Part of earth's surface not covered by water.", "label": "Land [Member]" } } }, "localname": "LandMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-6-premises-and-equipment-premises-and-equipment-details" ], "xbrltype": "domainItemType" }, "us-gaap_LeaseContractualTermAxis": { "auth_ref": [ "r624" ], "lang": { "en-us": { "role": { "documentation": "Information by contractual term of lease arrangement.", "label": "Lease Contractual Term [Axis]" } } }, "localname": "LeaseContractualTermAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments", "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-details-textual" ], "xbrltype": "stringItemType" }, "us-gaap_LeaseContractualTermDomain": { "auth_ref": [ "r624" ], "lang": { "en-us": { "role": { "documentation": "Contractual term of lease arrangement.", "label": "Lease Contractual Term [Domain]" } } }, "localname": "LeaseContractualTermDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments", "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-details-textual" ], "xbrltype": "domainItemType" }, "us-gaap_LeaseCost": { "auth_ref": [ "r630", "r632" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-schedule-of-lease-cost-and-additional-information-related-to-operating-leases-details": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of lease cost recognized by lessee for lease contract.", "label": "us-gaap_LeaseCost", "totalLabel": "Total lease expense (1)" } } }, "localname": "LeaseCost", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-schedule-of-lease-cost-and-additional-information-related-to-operating-leases-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_LeaseCostTableTextBlock": { "auth_ref": [ "r630" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income.", "label": "Lease, Cost [Table Text Block]" } } }, "localname": "LeaseCostTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-tables" ], "xbrltype": "textBlockItemType" }, "us-gaap_LegalFees": { "auth_ref": [ "r73" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of expense provided in the period for legal costs incurred on or before the balance sheet date pertaining to resolved, pending or threatened litigation, including arbitration and mediation proceedings.", "label": "us-gaap_LegalFees", "terseLabel": "Legal Fees" } } }, "localname": "LegalFees", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock": { "auth_ref": [ "r631" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position.", "label": "Lessee, Operating Lease, Liability, Maturity [Table Text Block]" } } }, "localname": "LesseeOperatingLeaseLiabilityMaturityTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-tables" ], "xbrltype": "textBlockItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue": { "auth_ref": [ "r631" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-schedule-of-undiscounted-cash-flows-that-contribute-to-the-operating-lease-liability-details": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease.", "label": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "totalLabel": "Total undiscounted cash flows" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsDue", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-schedule-of-undiscounted-cash-flows-that-contribute-to-the-operating-lease-liability-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths": { "auth_ref": [ "r631" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Twelve months ending December 31, 2022" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-schedule-of-undiscounted-cash-flows-that-contribute-to-the-operating-lease-liability-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive": { "auth_ref": [ "r631" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Twelve months ending December 31, 2026" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearFive", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-schedule-of-undiscounted-cash-flows-that-contribute-to-the-operating-lease-liability-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour": { "auth_ref": [ "r631" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Twelve months ending December 31, 2025" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearFour", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-schedule-of-undiscounted-cash-flows-that-contribute-to-the-operating-lease-liability-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree": { "auth_ref": [ "r631" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Twelve months ending December 31, 2024" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearThree", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-schedule-of-undiscounted-cash-flows-that-contribute-to-the-operating-lease-liability-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo": { "auth_ref": [ "r631" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Twelve months ending December 31, 2023" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearTwo", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-schedule-of-undiscounted-cash-flows-that-contribute-to-the-operating-lease-liability-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount": { "auth_ref": [ "r631" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-schedule-of-undiscounted-cash-flows-that-contribute-to-the-operating-lease-liability-details": { "order": 0.0, "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for operating lease.", "label": "us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount", "negatedLabel": "Less: discount" } } }, "localname": "LesseeOperatingLeaseLiabilityUndiscountedExcessAmount", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-schedule-of-undiscounted-cash-flows-that-contribute-to-the-operating-lease-liability-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeasesTextBlock": { "auth_ref": [ "r633" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for operating leases of lessee. Includes, but is not limited to, description of operating lease and maturity analysis of operating lease liability.", "label": "Lessee, Operating Leases [Text Block]" } } }, "localname": "LesseeOperatingLeasesTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments" ], "xbrltype": "textBlockItemType" }, "us-gaap_Liabilities": { "auth_ref": [ "r27", "r108", "r165", "r267", "r326", "r327", "r328", "r330", "r331", "r332", "r333", "r334", "r335", "r336", "r556", "r560", "r561", "r604", "r641", "r642" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets": { "order": 1.0, "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future.", "label": "us-gaap_Liabilities", "totalLabel": "Total liabilities", "verboseLabel": "Total liabilities" } } }, "localname": "Liabilities", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-balance-sheet-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_LiabilitiesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Liabilities" } } }, "localname": "LiabilitiesAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets" ], "xbrltype": "stringItemType" }, "us-gaap_LiabilitiesAndStockholdersEquity": { "auth_ref": [ "r20", "r108", "r267", "r604", "r643", "r699", "r769" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any.", "label": "us-gaap_LiabilitiesAndStockholdersEquity", "totalLabel": "Total liabilities and shareholders\u2019 equity", "verboseLabel": "Total liabilities and shareholders\u2019 equity" } } }, "localname": "LiabilitiesAndStockholdersEquity", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-balance-sheet-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_LifeInsuranceCorporateOrBankOwnedChangeInValue": { "auth_ref": [ "r268" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-": { "order": 3.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The change in cash surrender or contract value during the period which adjusted the amount of premiums paid in determining the expense or income recognized under the contract for the period.", "label": "us-gaap_LifeInsuranceCorporateOrBankOwnedChangeInValue", "negatedLabel": "Increase in cash value of bank owned life insurance" } } }, "localname": "LifeInsuranceCorporateOrBankOwnedChangeInValue", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-" ], "xbrltype": "monetaryItemType" }, "us-gaap_LineOfCredit": { "auth_ref": [ "r9", "r698", "r763" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.", "label": "us-gaap_LineOfCredit", "terseLabel": "Long-term Line of Credit, Total" } } }, "localname": "LineOfCredit", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-8-other-borrowings-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity": { "auth_ref": [ "r26" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.", "label": "us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity", "terseLabel": "Line of Credit Facility, Maximum Borrowing Capacity" } } }, "localname": "LineOfCreditFacilityMaximumBorrowingCapacity", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-8-other-borrowings-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity": { "auth_ref": [ "r26" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).", "label": "us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity", "terseLabel": "Line of Credit Facility, Remaining Borrowing Capacity" } } }, "localname": "LineOfCreditFacilityRemainingBorrowingCapacity", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-8-other-borrowings-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_LineOfCreditMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "A contractual arrangement with a lender under which borrowings can be made up to a specific amount at any point in time, and under which borrowings outstanding may be either short-term or long-term, depending upon the particulars.", "label": "Line of Credit [Member]" } } }, "localname": "LineOfCreditMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-8-other-borrowings", "http://www.fbvirginia.com/20211231/role/statement-note-8-other-borrowings-details-textual" ], "xbrltype": "domainItemType" }, "us-gaap_LoansAndLeasesReceivableAllowance": { "auth_ref": [ "r180", "r183", "r211", "r220" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loans-details": { "order": 0.0, "parentTag": "us-gaap_LoansAndLeasesReceivableNetReportedAmount", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.", "label": "Allowance for loan losses", "negatedLabel": "Allowance for loan losses", "periodEndLabel": "Ending balance", "periodStartLabel": "Beginning balance" } } }, "localname": "LoansAndLeasesReceivableAllowance", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets-parentheticals", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loans-details", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-allowance-by-impairment-methodology-and-loans-by-impairment-methodology-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_LoansAndLeasesReceivableAllowanceForLoanLossesPolicy": { "auth_ref": [ "r209" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for estimating the allowance for losses on loans and lease receivables. The disclosure may include (a) how the entity determines each element of the allowance, (b) which loans are evaluated individually and which loans are evaluated as a group, (c) how the entity determines both the allocated and unallocated portions of the allowance, (d) how the entity determines the loss factors applied to graded loans in order to develop a general allowance, and (e) what self-correcting mechanism the entity uses to reduce differences between estimated and actual losses.", "label": "Loans and Leases Receivable, Allowance for Loan Losses Policy [Policy Text Block]" } } }, "localname": "LoansAndLeasesReceivableAllowanceForLoanLossesPolicy", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-significant-accounting-policies-policies" ], "xbrltype": "textBlockItemType" }, "us-gaap_LoansAndLeasesReceivableDeferredIncome": { "auth_ref": [ "r202", "r218", "r620", "r709" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of deferred interest and fee income, unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of acquired loans. Excludes amounts for loans and leases covered under loss sharing agreements.", "label": "us-gaap_LoansAndLeasesReceivableDeferredIncome", "terseLabel": "Loans and Leases Receivable, Deferred Income, Total" } } }, "localname": "LoansAndLeasesReceivableDeferredIncome", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_LoansAndLeasesReceivableGrossCarryingAmount": { "auth_ref": [ "r176" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loans-details": { "order": 1.0, "parentTag": "us-gaap_LoansAndLeasesReceivableNetReportedAmount", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.", "label": "Loans", "terseLabel": "Loans and Leases Receivable, Gross, Total", "verboseLabel": "Outstanding principal balance" } } }, "localname": "LoansAndLeasesReceivableGrossCarryingAmount", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-analysis-of-the-credit-risk-profile-of-each-loan-class-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-loans-acquired-in-business-combinations-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loan-classes-and-an-aging-of-past-due-loans-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loans-details", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-allowance-by-impairment-methodology-and-loans-by-impairment-methodology-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans": { "auth_ref": [ "r222" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Reflects the amount of additional interest income that would have been recorded if impaired or nonperforming loans were instead current, in compliance with their original terms, and outstanding throughout the reporting period or since origination (if held for part of the period).", "label": "us-gaap_LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans", "terseLabel": "Loans and Leases Receivable, Impaired, Interest Lost on Nonaccrual Loans" } } }, "localname": "LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_LoansAndLeasesReceivableNetReportedAmount": { "auth_ref": [ "r176", "r709" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets": { "order": 0.0, "parentTag": "us-gaap_Assets", "weight": 1.0 }, "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loans-details": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.", "label": "Loans, net of allowance for loan losses, 2021, $5,710, 2020, $7,485", "terseLabel": "Loans and Leases Receivable, Net Amount, Total", "totalLabel": "Loans, net", "verboseLabel": "Carrying amount" } } }, "localname": "LoansAndLeasesReceivableNetReportedAmount", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets", "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-loans-acquired-in-business-combinations-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loans-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_LoansAndLeasesReceivableRealEstateAcquiredThroughForeclosurePolicy": { "auth_ref": [ "r212" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for real estate acquired through foreclosure.", "label": "Financing Receivable, Real Estate Acquired Through Foreclosure [Policy Text Block]" } } }, "localname": "LoansAndLeasesReceivableRealEstateAcquiredThroughForeclosurePolicy", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-significant-accounting-policies-policies" ], "xbrltype": "textBlockItemType" }, "us-gaap_LoansAndLeasesReceivableRelatedParties": { "auth_ref": [ "r636", "r708" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "For an unclassified balance sheet, reflects the carrying amount of unpaid loan amounts due from related parties at the balance sheet date.", "label": "us-gaap_LoansAndLeasesReceivableRelatedParties", "terseLabel": "Loans and Leases Receivable, Related Parties, Ending Balance" } } }, "localname": "LoansAndLeasesReceivableRelatedParties", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-16-transactions-with-related-parties-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_LoansAndLeasesReceivableRelatedPartiesAdditions": { "auth_ref": [ "r636", "r708" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Reflects the amount of new advances made to related parties in the form of loan and lease receivables.", "label": "us-gaap_LoansAndLeasesReceivableRelatedPartiesAdditions", "terseLabel": "Loans and Leases Receivable, Related Parties, Additions" } } }, "localname": "LoansAndLeasesReceivableRelatedPartiesAdditions", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-16-transactions-with-related-parties-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_LoansAndLeasesReceivableRelatedPartiesProceeds": { "auth_ref": [ "r80", "r701" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of cash inflow from related parties which reduce the amount of loans and leases receivable due from related parties.", "label": "us-gaap_LoansAndLeasesReceivableRelatedPartiesProceeds", "terseLabel": "Loans and Leases Receivable, Related Parties, Proceeds" } } }, "localname": "LoansAndLeasesReceivableRelatedPartiesProceeds", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-16-transactions-with-related-parties-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_LoansAndLeasesReceivableTroubledDebtRestructuringPolicy": { "auth_ref": [ "r224" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for troubled debt restructuring.", "label": "Troubled Debt Restructuring [Policy Text Block]" } } }, "localname": "LoansAndLeasesReceivableTroubledDebtRestructuringPolicy", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-significant-accounting-policies-policies" ], "xbrltype": "textBlockItemType" }, "us-gaap_LoansHeldForSaleFairValueDisclosure": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Fair value portion of loans held-for-sale including, but not limited to, mortgage loans and finance receivables.", "label": "us-gaap_LoansHeldForSaleFairValueDisclosure", "verboseLabel": "Loans held for sale" } } }, "localname": "LoansHeldForSaleFairValueDisclosure", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-carrying-values-and-estimated-values-of-financial-instruments-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesAxis": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Information by US and non-US government sponsored enterprise, authority, agency and program guarantees for government insured loans.", "label": "Loans Insured or Guaranteed by Government Authorities [Axis]" } } }, "localname": "LoansInsuredOrGuaranteedByGovernmentAuthoritiesAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies", "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual" ], "xbrltype": "stringItemType" }, "us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Guarantee by US and non-US government sponsored enterprises, authorities, agencies and programs for government insured loans.", "label": "Loans Insured or Guaranteed by Government Authorities [Domain]" } } }, "localname": "LoansInsuredOrGuaranteedByGovernmentAuthoritiesDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies", "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual" ], "xbrltype": "domainItemType" }, "us-gaap_LoansNotesTradeAndOtherReceivablesExcludingAllowanceForCreditLossesTextBlock": { "auth_ref": [ "r212" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for claims held for amounts due a company, excluding disclosure for allowance for credit losses. Examples include, but are not limited to, trade accounts receivables, notes receivables, loans receivables. Also excludes disclosure for financing receivables.", "label": "Loans, Notes, Trade and Other Receivables, Excluding Allowance for Credit Losses [Text Block]" } } }, "localname": "LoansNotesTradeAndOtherReceivablesExcludingAllowanceForCreditLossesTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-3-loans" ], "xbrltype": "textBlockItemType" }, "us-gaap_LoansPledgedAsCollateral": { "auth_ref": [ "r203", "r664" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Carrying amount as of the balance sheet date of loans that have been pledged as collateral for borrowings. If the secured party has the right by contract or custom to sell or re-pledge the collateral, then the debtor reclassifies that asset and report that asset in its statement of financial position separately from other assets not so encumbered.", "label": "us-gaap_LoansPledgedAsCollateral", "terseLabel": "Loans Pledged as Collateral" } } }, "localname": "LoansPledgedAsCollateral", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-8-other-borrowings-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_LoansReceivableFairValueDisclosure": { "auth_ref": [ "r212" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.", "label": "us-gaap_LoansReceivableFairValueDisclosure", "verboseLabel": "Loans, net" } } }, "localname": "LoansReceivableFairValueDisclosure", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-carrying-values-and-estimated-values-of-financial-instruments-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_LoansReceivableHeldForSaleAmount": { "auth_ref": [ "r176", "r814" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets": { "order": 13.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount, before valuation allowance, of financing receivable classified as held-for-sale.", "label": "Loans held for sale", "terseLabel": "Financing Receivable, Held-for-Sale" } } }, "localname": "LoansReceivableHeldForSaleAmount", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets", "http://www.fbvirginia.com/20211231/role/statement-note-15-commitments-and-unfunded-credits-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_LongtermDebtTypeAxis": { "auth_ref": [ "r30" ], "lang": { "en-us": { "role": { "documentation": "Information by type of long-term debt.", "label": "Long-term Debt, Type [Axis]" } } }, "localname": "LongtermDebtTypeAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies", "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual" ], "xbrltype": "stringItemType" }, "us-gaap_LongtermDebtTypeDomain": { "auth_ref": [ "r30", "r325" ], "lang": { "en-us": { "role": { "documentation": "Type of long-term debt arrangement, such as notes, line of credit, commercial paper, asset-based financing, project financing, letter of credit financing. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the company, if longer.", "label": "Long-term Debt, Type [Domain]" } } }, "localname": "LongtermDebtTypeDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies", "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual" ], "xbrltype": "domainItemType" }, "us-gaap_ManagementAndInvestmentAdvisoryFeesPolicy": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for the recognition of fees for investment advise, research, administrative and investment account management services provided to customers by broker dealers. This fee is generally based on the net assets of the fund or the account.", "label": "Management and Investment Advisory Fees, Policy [Policy Text Block]" } } }, "localname": "ManagementAndInvestmentAdvisoryFeesPolicy", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-significant-accounting-policies-policies" ], "xbrltype": "textBlockItemType" }, "us-gaap_MarketableSecuritiesTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of marketable securities. This may consist of investments in certain debt and equity securities, short-term investments and other assets.", "label": "Marketable Securities [Table Text Block]" } } }, "localname": "MarketableSecuritiesTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-tables" ], "xbrltype": "textBlockItemType" }, "us-gaap_MarketingExpense": { "auth_ref": [ "r74" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income": { "order": 10.0, "parentTag": "us-gaap_NoninterestExpense", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Expenditures for planning and executing the conception, pricing, promotion, and distribution of ideas, goods, and services. Costs of public relations and corporate promotions are typically considered to be marketing costs.", "label": "Marketing" } } }, "localname": "MarketingExpense", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income" ], "xbrltype": "monetaryItemType" }, "us-gaap_MeasurementInputCostToSellMember": { "auth_ref": [ "r591" ], "lang": { "en-us": { "role": { "documentation": "Measurement input using expense incurred to sell asset.", "label": "Measurement Input, Cost to Sell [Member]" } } }, "localname": "MeasurementInputCostToSellMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-quantitative-information-about-level-3-fair-value-measurements-details" ], "xbrltype": "domainItemType" }, "us-gaap_MeasurementInputTypeAxis": { "auth_ref": [ "r591" ], "lang": { "en-us": { "role": { "documentation": "Information by type of measurement input used to determine value of asset and liability.", "label": "Measurement Input Type [Axis]" } } }, "localname": "MeasurementInputTypeAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-quantitative-information-about-level-3-fair-value-measurements-details" ], "xbrltype": "stringItemType" }, "us-gaap_MeasurementInputTypeDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Measurement input used to determine value of asset and liability.", "label": "Measurement Input Type [Domain]" } } }, "localname": "MeasurementInputTypeDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-quantitative-information-about-level-3-fair-value-measurements-details" ], "xbrltype": "domainItemType" }, "us-gaap_MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember": { "auth_ref": [ "r414" ], "lang": { "en-us": { "role": { "documentation": "Debt securities collateralized by real estate mortgage loans (mortgages), issued by US Government Sponsored Enterprises, such as Federal Home Loan Mortgage Corporation (FHLMC or Freddie Mac).", "label": "Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]" } } }, "localname": "MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-details-textual" ], "xbrltype": "domainItemType" }, "us-gaap_MortgageBankingMember": { "auth_ref": [ "r387" ], "lang": { "en-us": { "role": { "documentation": "Origination or servicing of loan secured by real property.", "label": "Mortgage Banking [Member]" } } }, "localname": "MortgageBankingMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income", "http://www.fbvirginia.com/20211231/role/statement-note-23-revenue-recognition-disaggregation-of-revenue-details" ], "xbrltype": "domainItemType" }, "us-gaap_MortgageLoansInProcessOfForeclosureAmount": { "auth_ref": [ "r201" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Recorded investment of consumer mortgage loan receivables secured by residential real estate properties for which formal foreclosure proceedings are in process.", "label": "us-gaap_MortgageLoansInProcessOfForeclosureAmount", "terseLabel": "Mortgage Loans in Process of Foreclosure, Amount" } } }, "localname": "MortgageLoansInProcessOfForeclosureAmount", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_MunicipalBondsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Long-term debt securities issued by state, city or local governments or the agencies operated by state, city or local governments.", "label": "Municipal Bonds [Member]" } } }, "localname": "MunicipalBondsMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-balances-of-assets-measured-at-fair-value-on-recurring-basis-details" ], "xbrltype": "domainItemType" }, "us-gaap_NatureOfExpenseAxis": { "auth_ref": [ "r145" ], "lang": { "en-us": { "role": { "documentation": "Information by type of cost or expense.", "label": "Nature of Expense [Axis]" } } }, "localname": "NatureOfExpenseAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-details-textual" ], "xbrltype": "stringItemType" }, "us-gaap_NetCashProvidedByUsedInFinancingActivities": { "auth_ref": [ "r91" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-": { "order": 1.0, "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.", "label": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "totalLabel": "Net cash provided by financing activities", "verboseLabel": "Net cash (used in) provided by financing activities" } } }, "localname": "NetCashProvidedByUsedInFinancingActivities", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-cash-flows-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Cash Flows from Financing Activities" } } }, "localname": "NetCashProvidedByUsedInFinancingActivitiesAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-" ], "xbrltype": "stringItemType" }, "us-gaap_NetCashProvidedByUsedInInvestingActivities": { "auth_ref": [ "r91" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-": { "order": 0.0, "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.", "label": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "totalLabel": "Net cash used in investing activities", "verboseLabel": "Net cash used in investing activities" } } }, "localname": "NetCashProvidedByUsedInInvestingActivities", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-cash-flows-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Cash Flows from Investing Activities" } } }, "localname": "NetCashProvidedByUsedInInvestingActivitiesAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-" ], "xbrltype": "stringItemType" }, "us-gaap_NetCashProvidedByUsedInOperatingActivities": { "auth_ref": [ "r91", "r93", "r96" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-": { "order": 2.0, "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect", "weight": 1.0 } }, "lang": { "en-us": { "role": { "documentation": "Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.", "label": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "totalLabel": "Net cash provided by operating activities", "verboseLabel": "Net cash (used in) provided by operating activities" } } }, "localname": "NetCashProvidedByUsedInOperatingActivities", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-cash-flows-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Cash Flows from Operating Activities" } } }, "localname": "NetCashProvidedByUsedInOperatingActivitiesAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-" ], "xbrltype": "stringItemType" }, "us-gaap_NetIncomeLoss": { "auth_ref": [ "r2", "r48", "r51", "r57", "r64", "r96", "r108", "r119", "r121", "r122", "r123", "r124", "r127", "r128", "r135", "r161", "r163", "r166", "r169", "r171", "r267", "r326", "r327", "r328", "r330", "r331", "r332", "r333", "r334", "r335", "r336", "r587", "r604", "r713", "r775" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-": { "order": 21.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 }, "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-comprehensive-income": { "order": 1.0, "parentTag": "us-gaap_ComprehensiveIncomeNetOfTax", "weight": 1.0 }, "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.", "label": "Net income", "terseLabel": "Net income", "totalLabel": "Net income", "verboseLabel": "Net income" } } }, "localname": "NetIncomeLoss", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-", "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity", "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-comprehensive-income", "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income", "http://www.fbvirginia.com/20211231/role/statement-note-14-earnings-per-common-share-basic-and-diluted-earnings-per-share-details", "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-reclassifications-from-accumulated-other-comprehensive-loss-details", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-cash-flows-details", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-income-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy pertaining to new accounting pronouncements that may impact the entity's financial reporting. Includes, but is not limited to, quantification of the expected or actual impact.", "label": "New Accounting Pronouncements, Policy [Policy Text Block]" } } }, "localname": "NewAccountingPronouncementsPolicyPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-significant-accounting-policies-policies" ], "xbrltype": "textBlockItemType" }, "us-gaap_NoncashOrPartNoncashAcquisitionNetNonmonetaryAssetsAcquiredLiabilitiesAssumedAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Supplemental Disclosures of Noncash Transactions Related to Acquisitions" } } }, "localname": "NoncashOrPartNoncashAcquisitionNetNonmonetaryAssetsAcquiredLiabilitiesAssumedAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-" ], "xbrltype": "stringItemType" }, "us-gaap_NoncashOrPartNoncashAcquisitionValueOfAssetsAcquired1": { "auth_ref": [ "r100", "r101", "r102" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The value of an asset or business acquired in a noncash (or part noncash) acquisition. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. \"Part noncash\" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.", "label": "Assets acquired" } } }, "localname": "NoncashOrPartNoncashAcquisitionValueOfAssetsAcquired1", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-" ], "xbrltype": "monetaryItemType" }, "us-gaap_NoncashOrPartNoncashAcquisitionValueOfLiabilitiesAssumed1": { "auth_ref": [ "r100", "r101", "r102" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The total amount of [all] liabilities that an Entity assumes in acquiring a business or in consideration for an asset received in a noncash (or part noncash) acquisition. Noncash is defined as transactions during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. \"Part noncash\" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.", "label": "Liabilities assumed" } } }, "localname": "NoncashOrPartNoncashAcquisitionValueOfLiabilitiesAssumed1", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-" ], "xbrltype": "monetaryItemType" }, "us-gaap_NoninterestBearingDepositLiabilities": { "auth_ref": [ "r703" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets": { "order": 2.0, "parentTag": "us-gaap_Deposits", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The aggregate amount of all domestic and foreign noninterest-bearing deposits liabilities held by the entity.", "label": "Noninterest-bearing demand deposits" } } }, "localname": "NoninterestBearingDepositLiabilities", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_NoninterestExpense": { "auth_ref": [ "r726" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income": { "order": 0.0, "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Total aggregate amount of all noninterest expense.", "label": "us-gaap_NoninterestExpense", "totalLabel": "Total noninterest expense" } } }, "localname": "NoninterestExpense", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income" ], "xbrltype": "monetaryItemType" }, "us-gaap_NoninterestExpenseAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Noninterest Expense" } } }, "localname": "NoninterestExpenseAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income" ], "xbrltype": "stringItemType" }, "us-gaap_NoninterestIncome": { "auth_ref": [ "r723" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income": { "order": 1.0, "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The total amount of noninterest income which may be derived from: (1) fees and commissions; (2) premiums earned; (3) insurance policy charges; (4) the sale or disposal of assets; and (5) other sources not otherwise specified.", "label": "us-gaap_NoninterestIncome", "terseLabel": "Total noninterest income", "totalLabel": "Total noninterest income" } } }, "localname": "NoninterestIncome", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income", "http://www.fbvirginia.com/20211231/role/statement-note-23-revenue-recognition-disaggregation-of-revenue-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_NoninterestIncomeAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Noninterest Income" } } }, "localname": "NoninterestIncomeAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income" ], "xbrltype": "stringItemType" }, "us-gaap_NoninterestIncomeOtherOperatingIncome": { "auth_ref": [ "r59", "r711", "r780" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income": { "order": 1.0, "parentTag": "us-gaap_NoninterestIncome", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of revenue earned, classified as other, excluding interest income.", "label": "Other operating income" } } }, "localname": "NoninterestIncomeOtherOperatingIncome", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income" ], "xbrltype": "monetaryItemType" }, "us-gaap_OccupancyNet": { "auth_ref": [ "r75", "r619", "r724" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income": { "order": 12.0, "parentTag": "us-gaap_NoninterestExpense", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of net occupancy expense that may include items, such as depreciation of facilities and equipment, lease expenses, property taxes and property and casualty insurance expense.", "label": "Occupancy" } } }, "localname": "OccupancyNet", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseCost": { "auth_ref": [ "r625", "r632" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-schedule-of-lease-cost-and-additional-information-related-to-operating-leases-details": { "order": 1.0, "parentTag": "us-gaap_LeaseCost", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.", "label": "Operating lease expense" } } }, "localname": "OperatingLeaseCost", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-schedule-of-lease-cost-and-additional-information-related-to-operating-leases-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseLiability": { "auth_ref": [ "r622" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-schedule-of-undiscounted-cash-flows-that-contribute-to-the-operating-lease-liability-details": { "order": 1.0, "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Present value of lessee's discounted obligation for lease payments from operating lease.", "label": "Operating lease liability" } } }, "localname": "OperatingLeaseLiability", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-operating-lease-rightofuse-asset-and-operating-lease-liability-details", "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-schedule-of-undiscounted-cash-flows-that-contribute-to-the-operating-lease-liability-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeasePayments": { "auth_ref": [ "r623", "r627" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.", "label": "Cash paid for amounts included in lease liability" } } }, "localname": "OperatingLeasePayments", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-schedule-of-lease-cost-and-additional-information-related-to-operating-leases-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseRightOfUseAsset": { "auth_ref": [ "r621" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of lessee's right to use underlying asset under operating lease.", "label": "Operating lease right-of-use asset" } } }, "localname": "OperatingLeaseRightOfUseAsset", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-operating-lease-rightofuse-asset-and-operating-lease-liability-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent": { "auth_ref": [ "r629", "r632" ], "lang": { "en-us": { "role": { "documentation": "Weighted average discount rate for operating lease calculated at point in time.", "label": "Weighted average discount rate" } } }, "localname": "OperatingLeaseWeightedAverageDiscountRatePercent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-schedule-of-lease-cost-and-additional-information-related-to-operating-leases-details" ], "xbrltype": "percentItemType" }, "us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1": { "auth_ref": [ "r628", "r632" ], "lang": { "en-us": { "role": { "documentation": "Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.", "label": "Weighted average remaining lease term, in years (Year)" } } }, "localname": "OperatingLeaseWeightedAverageRemainingLeaseTerm1", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-schedule-of-lease-cost-and-additional-information-related-to-operating-leases-details" ], "xbrltype": "durationItemType" }, "us-gaap_OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock": { "auth_ref": [ "r115", "r130", "r155", "r562" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for the general note to the financial statements for the reporting entity which may include, descriptions of the basis of presentation, business description, significant accounting policies, consolidations, reclassifications, new pronouncements not yet adopted and changes in accounting principles.", "label": "Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block]" } } }, "localname": "OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies" ], "xbrltype": "textBlockItemType" }, "us-gaap_OtherAssets": { "auth_ref": [ "r6", "r694", "r764" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets": { "order": 5.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of assets classified as other.", "label": "Other assets", "verboseLabel": "Other assets" } } }, "localname": "OtherAssets", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-balance-sheet-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherAssetsMember": { "auth_ref": [ "r569", "r582" ], "lang": { "en-us": { "role": { "documentation": "Primary financial statement caption encompassing other assets.", "label": "Other Assets [Member]" } } }, "localname": "OtherAssetsMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-operating-lease-rightofuse-asset-and-operating-lease-liability-details", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-details-textual" ], "xbrltype": "domainItemType" }, "us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent": { "auth_ref": [ "r42" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-comprehensive-income": { "order": 0.0, "parentTag": "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent", "weight": 1.0 }, "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-changes-in-each-component-of-accumulated-other-comprehensive-income-loss-details": { "order": 2.0, "parentTag": "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount, after tax and reclassification, of gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness, attributable to parent.", "label": "Change in fair value of cash flow hedges, net of tax $107 and $91, respectively", "terseLabel": "Change in fair value of cash flow hedges, net of tax" } } }, "localname": "OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-comprehensive-income", "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-changes-in-each-component-of-accumulated-other-comprehensive-income-loss-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTaxParent": { "auth_ref": [ "r42" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount, before tax and after reclassification, of gain (loss) from derivative instrument designated and qualifying cash flow hedge included in assessment of hedge effectiveness, attributable to parent.", "label": "Change in fair value of cash flow hedges" } } }, "localname": "OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTaxParent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent": { "auth_ref": [ "r43" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount, after reclassification, of tax expense (benefit) for gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness, attributable to parent.", "label": "Change in fair value of cash flow hedges, tax", "terseLabel": "Change in fair value of cash flow hedges, tax" } } }, "localname": "OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-comprehensive-income-parentheticals", "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-changes-in-each-component-of-accumulated-other-comprehensive-income-loss-details-parentheticals" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Other comprehensive income, net of tax:" } } }, "localname": "OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-comprehensive-income" ], "xbrltype": "stringItemType" }, "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent": { "auth_ref": [ "r49", "r52", "r553", "r554", "r558" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-comprehensive-income": { "order": 0.0, "parentTag": "us-gaap_ComprehensiveIncomeNetOfTax", "weight": 1.0 }, "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-changes-in-each-component-of-accumulated-other-comprehensive-income-loss-details": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount after tax of other comprehensive income (loss) attributable to parent entity.", "label": "Other comprehensive income (loss)", "totalLabel": "Total other comprehensive (loss) income" } } }, "localname": "OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity", "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-comprehensive-income", "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-changes-in-each-component-of-accumulated-other-comprehensive-income-loss-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax": { "auth_ref": [ "r42", "r46", "r47", "r260" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-comprehensive-income": { "order": 1.0, "parentTag": "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent", "weight": -1.0 }, "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-changes-in-each-component-of-accumulated-other-comprehensive-income-loss-details": { "order": 0.0, "parentTag": "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount after tax of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities.", "label": "us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax", "negatedLabel": "Reclassification adjustment for (losses) included in net income, net of tax ($8) and ($8), respectively", "negatedTerseLabel": "Reclassification adjustment" } } }, "localname": "OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-comprehensive-income", "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-changes-in-each-component-of-accumulated-other-comprehensive-income-loss-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax": { "auth_ref": [ "r43", "r260" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities.", "label": "Reclassification adjustment for losses included in net income, tax", "negatedTerseLabel": "Reclassification adjustment, tax", "terseLabel": "Reclassification adjustment, tax" } } }, "localname": "OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-comprehensive-income-parentheticals", "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-changes-in-each-component-of-accumulated-other-comprehensive-income-loss-details-parentheticals" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeLossTransfersFromHeldToMaturityToAvailableForSaleSecuritiesNetOfTax": { "auth_ref": [ "r42" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-comprehensive-income": { "order": 2.0, "parentTag": "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount, after tax and before adjustment, of unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).", "label": "Unrealized holding (loss) gains on available for sale securities, net of tax ($923) and $629, respectively" } } }, "localname": "OtherComprehensiveIncomeLossTransfersFromHeldToMaturityToAvailableForSaleSecuritiesNetOfTax", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-comprehensive-income" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeReclassificationAdjustmentForHeldToMaturityTransferredToAvailableForSaleSecuritiesTax": { "auth_ref": [ "r39", "r43", "r46" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount, before adjustment, of tax expense (benefit) for unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).", "label": "Unrealized holding losses on securities transferred from held to maturity to available for sale, tax" } } }, "localname": "OtherComprehensiveIncomeReclassificationAdjustmentForHeldToMaturityTransferredToAvailableForSaleSecuritiesTax", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-comprehensive-income-parentheticals" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax": { "auth_ref": [ "r38", "r42", "r260" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount, before tax and adjustment, of unrealized holding gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Excludes unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale.", "label": "us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax", "terseLabel": "Unrealized (losses) gains on securities available for sale" } } }, "localname": "OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax": { "auth_ref": [ "r38", "r42" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-changes-in-each-component-of-accumulated-other-comprehensive-income-loss-details": { "order": 1.0, "parentTag": "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount, after tax and before adjustment, of unrealized holding gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Excludes unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale.", "label": "us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax", "terseLabel": "Unrealized holding gains, net of tax" } } }, "localname": "OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-changes-in-each-component-of-accumulated-other-comprehensive-income-loss-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax": { "auth_ref": [ "r39", "r43" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount, before adjustment, of tax expense (benefit) for unrealized holding gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Excludes tax expense (benefit) for unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale.", "label": "us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax", "terseLabel": "Unrealized holding gains, tax" } } }, "localname": "OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-changes-in-each-component-of-accumulated-other-comprehensive-income-loss-details-parentheticals" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherGeneralExpense": { "auth_ref": [ "r75" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of general expenses not normally included in Other Operating Costs and Expenses.", "label": "us-gaap_OtherGeneralExpense", "verboseLabel": "Other expense" } } }, "localname": "OtherGeneralExpense", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-income-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherLiabilities": { "auth_ref": [ "r704" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of liabilities classified as other.", "label": "us-gaap_OtherLiabilities", "verboseLabel": "Other liabilities" } } }, "localname": "OtherLiabilities", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-balance-sheet-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherNoninterestExpense": { "auth_ref": [ "r726" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income": { "order": 0.0, "parentTag": "us-gaap_NoninterestExpense", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of noninterest expense classified as other.", "label": "Other operating expense" } } }, "localname": "OtherNoninterestExpense", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherRealEstate": { "auth_ref": [ "r702" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets": { "order": 12.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Carrying amount of other real estate not separately disclosed, including, but not limited to, real estate investments, real estate loans that qualify as investments in real estate, and premises that are no longer used in operations may also be included in real estate owned. This does not include real estate assets taken in settlement of troubled loans through surrender or foreclosure.", "label": "Other real estate owned, net of valuation allowance, 2021, $139, 2020, $0", "terseLabel": "Other Real Estate, Ending Balance", "verboseLabel": "Balance at the end of period, net" } } }, "localname": "OtherRealEstate", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets", "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned-changes-in-balance-for-oreo-details", "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherRealEstateAdditions": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Additions of other real estate not separately disclosed, including, but not limited to, real estate investments, real estate loans that qualify as investments in real estate, and premises that are no longer used in operations may also be included in real estate owned. This excludes real estate assets taken in settlement of troubled loans through surrender or foreclosure.", "label": "Acquired in merger", "terseLabel": "Other Real Estate, Additions" } } }, "localname": "OtherRealEstateAdditions", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned-changes-in-balance-for-oreo-details", "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherRealEstateDisposals": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Disposals of other real estate not separately disclosed, including, but not limited to, real estate investments, real estate loans that qualify as investments in real estate, and premises that are no longer used in operations may also be included in real estate owned. This excludes real estate assets taken in settlement of troubled loans through surrender or foreclosure.", "label": "us-gaap_OtherRealEstateDisposals", "negatedLabel": "Sales proceeds" } } }, "localname": "OtherRealEstateDisposals", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned-changes-in-balance-for-oreo-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherRealEstateRollForwardTableTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of the change in other real estate on properties owned. Excludes real estate assets taken in settlement of troubled loans through surrender or foreclosure by banks.", "label": "Other Real Estate, Roll Forward [Table Text Block]" } } }, "localname": "OtherRealEstateRollForwardTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned-tables" ], "xbrltype": "textBlockItemType" }, "us-gaap_OtherRealEstateValuationAdjustments": { "auth_ref": [], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-": { "order": 4.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Valuation adjustments made to other real estate not separately disclosed, including, but not limited to, real estate investments, real estate loans that qualify as investments in real estate, and premises that are no longer used in operations may also be included in real estate owned. This excludes real estate assets taken in settlement of troubled loans through surrender or foreclosure.", "label": "us-gaap_OtherRealEstateValuationAdjustments", "negatedLabel": "Fair value adjustments on other real estate owned" } } }, "localname": "OtherRealEstateValuationAdjustments", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-" ], "xbrltype": "monetaryItemType" }, "us-gaap_PassMember": { "auth_ref": [ "r197", "r279" ], "lang": { "en-us": { "role": { "documentation": "A category of financing receivables not considered to be special mention, substandard, doubtful, and loss receivables.", "label": "Pass [Member]" } } }, "localname": "PassMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-analysis-of-the-credit-risk-profile-of-each-loan-class-details" ], "xbrltype": "domainItemType" }, "us-gaap_PastDueFinancingReceivablesTableTextBlock": { "auth_ref": [ "r207", "r208", "r274", "r285" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of aging analysis for financing receivable.", "label": "Financing Receivable, Past Due [Table Text Block]" } } }, "localname": "PastDueFinancingReceivablesTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-tables" ], "xbrltype": "textBlockItemType" }, "us-gaap_PaymentsForOriginationAndPurchasesOfLoansHeldForSale": { "auth_ref": [ "r90" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-": { "order": 8.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The aggregate amount of cash outflow for loans purchased and created with the intention to resell them in the near future.", "label": "us-gaap_PaymentsForOriginationAndPurchasesOfLoansHeldForSale", "negatedLabel": "Origination of loans held for sale" } } }, "localname": "PaymentsForOriginationAndPurchasesOfLoansHeldForSale", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsForProceedsFromLoansAndLeases": { "auth_ref": [ "r733" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-": { "order": 3.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The net cash outflow or inflow for the increase (decrease) in the beginning and end of period of loan and lease balances which are not originated or purchased specifically for resale. Includes cash payments and proceeds associated with (a) loans held-for-investment, (b) leases held-for-investment, and (c) both.", "label": "us-gaap_PaymentsForProceedsFromLoansAndLeases", "negatedLabel": "Net (decrease) increase in loans" } } }, "localname": "PaymentsForProceedsFromLoansAndLeases", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsForRepurchaseOfCommonStock": { "auth_ref": [ "r87" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-": { "order": 1.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The cash outflow to reacquire common stock during the period.", "label": "us-gaap_PaymentsForRepurchaseOfCommonStock", "negatedLabel": "Repurchase of common stock", "verboseLabel": "Repurchase of common stock" } } }, "localname": "PaymentsForRepurchaseOfCommonStock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-cash-flows-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsOfDividendsCommonStock": { "auth_ref": [ "r87" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-": { "order": 2.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity.", "label": "us-gaap_PaymentsOfDividendsCommonStock", "negatedLabel": "Cash dividends paid on common stock, net of reinvestment", "verboseLabel": "Cash dividends paid on common stock, net of reinvestment" } } }, "localname": "PaymentsOfDividendsCommonStock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-cash-flows-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt": { "auth_ref": [ "r79", "r83", "r227" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-": { "order": 2.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of cash outflow to acquire investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).", "label": "us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt", "negatedLabel": "Purchases of securities available for sale" } } }, "localname": "PaymentsToAcquireAvailableForSaleSecuritiesDebt", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsToAcquireBusinessesGross": { "auth_ref": [ "r84", "r545" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details": { "order": 0.0, "parentTag": "us-gaap_BusinessCombinationConsiderationTransferred1", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.", "label": "Cash paid", "terseLabel": "Payments to Acquire Businesses, Gross" } } }, "localname": "PaymentsToAcquireBusinessesGross", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired": { "auth_ref": [ "r84" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-": { "order": 6.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.", "label": "us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired", "negatedLabel": "Net cash paid in acquisition", "negatedTerseLabel": "Net cash paid in acquisition of The Bank of Fincastle" } } }, "localname": "PaymentsToAcquireBusinessesNetOfCashAcquired", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-cash-flows-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsToAcquireHeldToMaturitySecurities": { "auth_ref": [ "r83", "r227" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-": { "order": 4.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of cash outflow through purchase of long-term held-to-maturity securities.", "label": "us-gaap_PaymentsToAcquireHeldToMaturitySecurities", "negatedLabel": "Purchases of securities held to maturity" } } }, "localname": "PaymentsToAcquireHeldToMaturitySecurities", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsToAcquireProductiveAssets": { "auth_ref": [ "r85", "r547", "r548", "r549" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-": { "order": 1.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets.", "label": "us-gaap_PaymentsToAcquireProductiveAssets", "negatedLabel": "Purchase of premises and equipment, net" } } }, "localname": "PaymentsToAcquireProductiveAssets", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-" ], "xbrltype": "monetaryItemType" }, "us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock": { "auth_ref": [ "r413", "r415", "r421", "r438", "r440", "r441", "r442", "r443", "r444", "r457", "r459", "r461", "r462", "r476" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for retirement benefits.", "label": "Retirement Benefits [Text Block]" } } }, "localname": "PensionAndOtherPostretirementBenefitsDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-13-benefit-plans" ], "xbrltype": "textBlockItemType" }, "us-gaap_PensionAndOtherPostretirementPlansPensionsPolicy": { "auth_ref": [ "r445", "r460", "r462", "r468" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for pension plans. This accounting policy may address (1) the types of plans sponsored by the entity (2) groups that participate in (or are covered by) each plan (3) how plan assets, liabilities and expenses are measured, including the use of any actuaries and (4) significant assumptions used by the entity to value plan assets and liabilities and how such assumptions are derived.", "label": "Pension and Other Postretirement Plans, Pensions, Policy [Policy Text Block]" } } }, "localname": "PensionAndOtherPostretirementPlansPensionsPolicy", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-significant-accounting-policies-policies" ], "xbrltype": "textBlockItemType" }, "us-gaap_PerformingFinancingReceivableMember": { "auth_ref": [ "r197", "r279" ], "lang": { "en-us": { "role": { "documentation": "Category status of financial instruments in which payments are received or paid on a timely basis in accordance with the terms of the contract. Financial instruments include, but are not limited to, financing receivables, loans, debt instruments, and investments.", "label": "Performing Financial Instruments [Member]" } } }, "localname": "PerformingFinancingReceivableMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-details-textual" ], "xbrltype": "domainItemType" }, "us-gaap_PlanNameAxis": { "auth_ref": [ "r480", "r492" ], "lang": { "en-us": { "role": { "documentation": "Information by plan name for share-based payment arrangement.", "label": "Plan Name [Axis]" } } }, "localname": "PlanNameAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-", "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity", "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity-parentheticals", "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans", "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-details-textual" ], "xbrltype": "stringItemType" }, "us-gaap_PlanNameDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Plan name for share-based payment arrangement.", "label": "Plan Name [Domain]" } } }, "localname": "PlanNameDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-", "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity", "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity-parentheticals", "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans", "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-details-textual" ], "xbrltype": "domainItemType" }, "us-gaap_PolicyTextBlockAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "us-gaap_PolicyTextBlockAbstract", "terseLabel": "Accounting Policies" } } }, "localname": "PolicyTextBlockAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-significant-accounting-policies-policies" ], "xbrltype": "stringItemType" }, "us-gaap_PortionAtFairValueFairValueDisclosureMember": { "auth_ref": [ "r600" ], "lang": { "en-us": { "role": { "documentation": "Measured at fair value for financial reporting purposes.", "label": "Portion at Fair Value Measurement [Member] [Default]" } } }, "localname": "PortionAtFairValueFairValueDisclosureMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-carrying-values-and-estimated-values-of-financial-instruments-details" ], "xbrltype": "domainItemType" }, "us-gaap_PreferredStockParOrStatedValuePerShare": { "auth_ref": [ "r12", "r371" ], "lang": { "en-us": { "role": { "documentation": "Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.", "label": "Preferred stock, par value (in dollars per share)" } } }, "localname": "PreferredStockParOrStatedValuePerShare", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets-parentheticals" ], "xbrltype": "perShareItemType" }, "us-gaap_PreferredStockSharesAuthorized": { "auth_ref": [ "r12" ], "lang": { "en-us": { "role": { "documentation": "The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.", "label": "Preferred stock, shares authorized (in shares)" } } }, "localname": "PreferredStockSharesAuthorized", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets-parentheticals" ], "xbrltype": "sharesItemType" }, "us-gaap_PreferredStockSharesIssued": { "auth_ref": [ "r12", "r371" ], "lang": { "en-us": { "role": { "documentation": "Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt.", "label": "Preferred stock, shares issued (in shares)" } } }, "localname": "PreferredStockSharesIssued", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets-parentheticals" ], "xbrltype": "sharesItemType" }, "us-gaap_PreferredStockSharesOutstanding": { "auth_ref": [ "r12" ], "lang": { "en-us": { "role": { "documentation": "Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased.", "label": "Preferred stock, shares outstanding (in shares)" } } }, "localname": "PreferredStockSharesOutstanding", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets-parentheticals" ], "xbrltype": "sharesItemType" }, "us-gaap_PreferredStockValue": { "auth_ref": [ "r12", "r643" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets": { "order": 1.0, "parentTag": "us-gaap_StockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Aggregate par or stated value of issued nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable preferred shares, par value and other disclosure concepts are in another section within stockholders' equity.", "label": "Preferred stock, par value $1.25 per share; authorized 1,000,000 shares; none issued and outstanding", "verboseLabel": "Preferred stock" } } }, "localname": "PreferredStockValue", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-balance-sheet-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromIssuanceOfDebt": { "auth_ref": [ "r86" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.", "label": "us-gaap_ProceedsFromIssuanceOfDebt", "terseLabel": "Proceeds from Issuance of Debt" } } }, "localname": "ProceedsFromIssuanceOfDebt", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromIssuanceOfSubordinatedLongTermDebt": { "auth_ref": [ "r86" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-": { "order": 4.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The cash inflow from a borrowing where a lender is placed in a lien position behind debt having a higher priority of repayment (senior) in liquidation of the entity's assets or underlying collateral.", "label": "Proceeds from subordinated debt, net of issuance costs", "verboseLabel": "Proceeds from subordinated debt, net of issuance costs" } } }, "localname": "ProceedsFromIssuanceOfSubordinatedLongTermDebt", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-cash-flows-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromIssuanceOfTrustPreferredSecurities": { "auth_ref": [ "r86" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The cash inflow from issuance of preferred stocks by a business trust or other special purpose entity, mainly established by a bank holding entity, to third party investors. The trust's assets are deeply subordinated debentures of the bank holding entity. Most trust preferred securities are subject to a mandatory redemption upon the repayment of the debentures.", "label": "us-gaap_ProceedsFromIssuanceOfTrustPreferredSecurities", "terseLabel": "Proceeds from Issuance of Trust Preferred Securities" } } }, "localname": "ProceedsFromIssuanceOfTrustPreferredSecurities", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-10-junior-subordinated-debt-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities": { "auth_ref": [ "r80", "r227" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The cash inflow associated with the maturity, prepayments and calls (requests for early payments) of debt securities designated as held-to-maturity.", "label": "us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities", "terseLabel": "Proceeds from Maturities, Prepayments and Calls of Held-to-maturity Securities" } } }, "localname": "ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities": { "auth_ref": [ "r79", "r80", "r227" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-": { "order": 5.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of cash inflow from sale, maturity, prepayment and call of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).", "label": "Proceeds from maturities, calls, principal payments, and sales of securities available for sale", "terseLabel": "Proceeds from Sale and Maturity of Debt Securities, Available-for-sale, Total" } } }, "localname": "ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities": { "auth_ref": [ "r80", "r227" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-": { "order": 7.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of cash inflow from the sale or maturity of long-term held-to-maturity securities.", "label": "Proceeds from maturities, calls, and principal payments of securities held to maturity" } } }, "localname": "ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromSaleOfHeldToMaturitySecurities": { "auth_ref": [ "r80", "r227" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The cash inflow associated with the sale of securities that had been designated as held-to-maturity. Excludes proceeds from maturities, prepayments and calls by the issuer.", "label": "us-gaap_ProceedsFromSaleOfHeldToMaturitySecurities", "terseLabel": "Proceeds from Sale of Held-to-maturity Securities" } } }, "localname": "ProceedsFromSaleOfHeldToMaturitySecurities", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromSaleOfLoansHeldForSale": { "auth_ref": [ "r88", "r90" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-": { "order": 10.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The cash inflow resulting from the sale of loans classified as held-for-sale, including proceeds from loans sold through mortgage securitization.", "label": "Proceeds from sale of loans held for sale" } } }, "localname": "ProceedsFromSaleOfLoansHeldForSale", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromSaleOfOtherRealEstate": { "auth_ref": [ "r82" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-": { "order": 9.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The cash inflow associated with the sale of other real estate not otherwise defined in the taxonomy.", "label": "Proceeds from sale of other real estate owned" } } }, "localname": "ProceedsFromSaleOfOtherRealEstate", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment": { "auth_ref": [ "r81" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-": { "order": 8.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.", "label": "Proceeds from sale of premises and equipment" } } }, "localname": "ProceedsFromSaleOfPropertyPlantAndEquipment", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProfessionalFees": { "auth_ref": [ "r796", "r797" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income": { "order": 8.0, "parentTag": "us-gaap_NoninterestExpense", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "A fee charged for services from professionals such as doctors, lawyers and accountants. The term is often expanded to include other professions, for example, pharmacists charging to maintain a medicinal profile of a client or customer.", "label": "Legal and professional fees", "verboseLabel": "Legal and professional fees" } } }, "localname": "ProfessionalFees", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-income-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProfitLossFromRealEstateOperations": { "auth_ref": [ "r725" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income": { "order": 2.0, "parentTag": "us-gaap_NoninterestExpense", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The net cost of operation of other real estate (including provisions for real estate losses, rental income, and gains and losses on sales of real estate).", "label": "us-gaap_ProfitLossFromRealEstateOperations", "negatedLabel": "Other real estate owned expense, net" } } }, "localname": "ProfitLossFromRealEstateOperations", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income" ], "xbrltype": "monetaryItemType" }, "us-gaap_PropertyPlantAndEquipmentByTypeAxis": { "auth_ref": [ "r24", "r312" ], "lang": { "en-us": { "role": { "documentation": "Information by type of long-lived, physical assets used to produce goods and services and not intended for resale.", "label": "Long-Lived Tangible Asset [Axis]" } } }, "localname": "PropertyPlantAndEquipmentByTypeAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies", "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-6-premises-and-equipment-premises-and-equipment-details" ], "xbrltype": "stringItemType" }, "us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock": { "auth_ref": [ "r313", "r820", "r821", "r822" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections.", "label": "Property, Plant and Equipment Disclosure [Text Block]" } } }, "localname": "PropertyPlantAndEquipmentDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-6-premises-and-equipment" ], "xbrltype": "textBlockItemType" }, "us-gaap_PropertyPlantAndEquipmentGross": { "auth_ref": [ "r23", "r310" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-6-premises-and-equipment-premises-and-equipment-details": { "order": 0.0, "parentTag": "us-gaap_PropertyPlantAndEquipmentNet", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.", "label": "us-gaap_PropertyPlantAndEquipmentGross", "verboseLabel": "Property, Plant and Equipment, Gross" } } }, "localname": "PropertyPlantAndEquipmentGross", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-6-premises-and-equipment-premises-and-equipment-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_PropertyPlantAndEquipmentNet": { "auth_ref": [ "r4", "r5", "r312", "r643", "r746", "r771" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets": { "order": 11.0, "parentTag": "us-gaap_Assets", "weight": 1.0 }, "http://www.fbvirginia.com/20211231/role/statement-note-6-premises-and-equipment-premises-and-equipment-details": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.", "label": "Premises and equipment, net", "totalLabel": "Property, Plant and Equipment, Net" } } }, "localname": "PropertyPlantAndEquipmentNet", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets", "http://www.fbvirginia.com/20211231/role/statement-note-6-premises-and-equipment-premises-and-equipment-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_PropertyPlantAndEquipmentPolicyTextBlock": { "auth_ref": [ "r22", "r312", "r820", "r821" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections.", "label": "Property, Plant and Equipment, Policy [Policy Text Block]" } } }, "localname": "PropertyPlantAndEquipmentPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-significant-accounting-policies-policies" ], "xbrltype": "textBlockItemType" }, "us-gaap_PropertyPlantAndEquipmentTextBlock": { "auth_ref": [ "r4", "r312" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.", "label": "Property, Plant and Equipment [Table Text Block]" } } }, "localname": "PropertyPlantAndEquipmentTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-6-premises-and-equipment-tables" ], "xbrltype": "textBlockItemType" }, "us-gaap_PropertyPlantAndEquipmentTypeDomain": { "auth_ref": [ "r4", "r310" ], "lang": { "en-us": { "role": { "documentation": "Listing of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.", "label": "Long-Lived Tangible Asset [Domain]" } } }, "localname": "PropertyPlantAndEquipmentTypeDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies", "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-6-premises-and-equipment-premises-and-equipment-details" ], "xbrltype": "domainItemType" }, "us-gaap_PropertyPlantAndEquipmentUsefulLife": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.", "label": "us-gaap_PropertyPlantAndEquipmentUsefulLife", "terseLabel": "Property, Plant and Equipment, Useful Life (Year)" } } }, "localname": "PropertyPlantAndEquipmentUsefulLife", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual" ], "xbrltype": "durationItemType" }, "us-gaap_ProvisionForLoanAndLeaseLosses": { "auth_ref": [ "r94", "r181", "r720" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-": { "order": 7.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of expense related to estimated loss from loan and lease transactions.", "label": "us-gaap_ProvisionForLoanAndLeaseLosses", "terseLabel": "(Recovery of) provision for loan losses" } } }, "localname": "ProvisionForLoanAndLeaseLosses", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-allowance-by-impairment-methodology-and-loans-by-impairment-methodology-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProvisionForLoanLeaseAndOtherLosses": { "auth_ref": [ "r94", "r181", "r720" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income": { "order": 1.0, "parentTag": "us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value.", "label": "(Recovery of) provision for loan losses" } } }, "localname": "ProvisionForLoanLeaseAndOtherLosses", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income" ], "xbrltype": "monetaryItemType" }, "us-gaap_RealEstateOwnedTextBlock": { "auth_ref": [ "r177" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for real estate owned (as defined). Generally, the largest component of real estate owned by lenders is assets taken in settlement of troubled loans through surrender or foreclosure. Real estate investments, real estate loans that qualify as investments in real estate, and premises that are no longer used in operations may also be included in real estate owned.", "label": "Real Estate Owned [Text Block]" } } }, "localname": "RealEstateOwnedTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned" ], "xbrltype": "textBlockItemType" }, "us-gaap_RealEstateOwnedValuationAllowance": { "auth_ref": [ "r702" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "For each period for which an income statement is required, disclosure of the changes in the allowance, including balances at end of period.", "label": "Other real estate owned, valuation allowance", "negatedTerseLabel": "Less: valuation allowance" } } }, "localname": "RealEstateOwnedValuationAllowance", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets-parentheticals", "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned-changes-in-balance-for-oreo-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis": { "auth_ref": [ "r57" ], "lang": { "en-us": { "role": { "documentation": "Information by item reclassified out of accumulated other comprehensive income (loss).", "label": "Reclassification out of Accumulated Other Comprehensive Income [Axis]" } } }, "localname": "ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-reclassifications-from-accumulated-other-comprehensive-loss-details" ], "xbrltype": "stringItemType" }, "us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain": { "auth_ref": [ "r57" ], "lang": { "en-us": { "role": { "documentation": "Item reclassified out of accumulated other comprehensive income (loss).", "label": "Reclassification out of Accumulated Other Comprehensive Income [Domain]" } } }, "localname": "ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-reclassifications-from-accumulated-other-comprehensive-loss-details" ], "xbrltype": "domainItemType" }, "us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember": { "auth_ref": [ "r57" ], "lang": { "en-us": { "role": { "documentation": "Identifies item reclassified out of accumulated other comprehensive income (loss).", "label": "Reclassification out of Accumulated Other Comprehensive Income [Member]" } } }, "localname": "ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-reclassifications-from-accumulated-other-comprehensive-loss-details" ], "xbrltype": "domainItemType" }, "us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of information about items reclassified out of accumulated other comprehensive income (loss).", "label": "Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]" } } }, "localname": "ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-tables" ], "xbrltype": "textBlockItemType" }, "us-gaap_RegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock": { "auth_ref": [ "r750", "r751", "r752", "r754", "r755", "r756", "r758", "r759" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for regulatory capital requirement for depository and lending institutions. Institutions include, but not are not limited to, finance company, insured depository institution, bank holding company, savings and loan association holding company, bank and savings institution not federally insured, mortgage company, foreign financial institution and credit union.", "label": "Regulatory Capital Requirements under Banking Regulations [Text Block]" } } }, "localname": "RegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters" ], "xbrltype": "textBlockItemType" }, "us-gaap_RelatedPartyTransactionsDisclosureTextBlock": { "auth_ref": [ "r634", "r635", "r636", "r638", "r639" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.", "label": "Related Party Transactions Disclosure [Text Block]" } } }, "localname": "RelatedPartyTransactionsDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-16-transactions-with-related-parties" ], "xbrltype": "textBlockItemType" }, "us-gaap_RestrictedInvestments": { "auth_ref": [ "r816", "r817" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets": { "order": 1.0, "parentTag": "us-gaap_Assets", "weight": 1.0 }, "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-composition-of-restricted-securities-details": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Investments which are not defined as or included in marketable (debt, equity, or other) securities whose use is restricted in whole or in part, generally by contractual agreements or regulatory requirements. For use in an unclassified balance sheet.", "label": "Restricted securities, at cost", "totalLabel": "Total restricted securities", "verboseLabel": "Restricted securities" } } }, "localname": "RestrictedInvestments", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-carrying-values-and-estimated-values-of-financial-instruments-details", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-composition-of-restricted-securities-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_RestrictedStockUnitsRSUMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Share instrument which is convertible to stock or an equivalent amount of cash, after a specified period of time or when specified performance conditions are met.", "label": "Restricted Stock Units (RSUs) [Member]" } } }, "localname": "RestrictedStockUnitsRSUMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans", "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-summary-of-restricted-stock-unit-activity-details" ], "xbrltype": "domainItemType" }, "us-gaap_RetainedEarningsAccumulatedDeficit": { "auth_ref": [ "r16", "r375", "r496", "r643", "r768", "r791", "r793" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets": { "order": 3.0, "parentTag": "us-gaap_StockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The cumulative amount of the reporting entity's undistributed earnings or deficit.", "label": "Retained earnings", "verboseLabel": "Retained earnings" } } }, "localname": "RetainedEarningsAccumulatedDeficit", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-balance-sheet-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_RetainedEarningsMember": { "auth_ref": [ "r0", "r116", "r117", "r118", "r120", "r126", "r128", "r269", "r493", "r494", "r495", "r522", "r523", "r585", "r788", "r790" ], "lang": { "en-us": { "role": { "documentation": "The cumulative amount of the reporting entity's undistributed earnings or deficit.", "label": "Retained Earnings [Member]" } } }, "localname": "RetainedEarningsMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity" ], "xbrltype": "domainItemType" }, "us-gaap_RetirementPlanTypeAxis": { "auth_ref": [ "r389", "r390", "r391", "r392", "r393", "r394", "r395", "r396", "r397", "r398", "r399", "r400", "r401", "r402", "r403", "r404", "r405", "r406", "r407", "r408", "r409", "r410", "r411", "r412", "r413", "r414", "r416", "r417", "r418", "r419", "r420", "r421", "r422", "r423", "r424", "r425", "r426", "r427", "r428", "r429", "r430", "r431", "r432", "r433", "r434", "r435", "r436", "r437", "r439", "r442", "r446", "r447", "r448", "r449", "r450", "r451", "r452", "r453", "r454", "r455", "r456", "r457", "r458", "r462", "r463", "r464", "r465", "r466", "r467", "r471", "r472", "r473", "r474" ], "lang": { "en-us": { "role": { "documentation": "Information by type of retirement benefit plan. Includes, but is not limited to, retirement benefit arrangement for defined benefit pension and other postretirement plans, retirement benefit arrangement for defined contribution pension and other postretirement plans, and special and contractual termination benefits payable upon retirement.", "label": "Retirement Plan Type [Axis]" } } }, "localname": "RetirementPlanTypeAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-13-benefit-plans", "http://www.fbvirginia.com/20211231/role/statement-note-13-benefit-plans-details-textual" ], "xbrltype": "stringItemType" }, "us-gaap_RetirementPlanTypeDomain": { "auth_ref": [ "r389", "r390", "r391", "r392", "r393", "r394", "r395", "r396", "r397", "r398", "r399", "r400", "r401", "r402", "r403", "r404", "r405", "r406", "r407", "r408", "r409", "r410", "r411", "r412", "r413", "r414", "r416", "r417", "r418", "r419", "r420", "r421", "r422", "r423", "r424", "r425", "r426", "r427", "r428", "r429", "r430", "r431", "r432", "r433", "r434", "r435", "r436", "r437", "r439", "r442", "r446", "r447", "r448", "r449", "r450", "r451", "r452", "r453", "r454", "r455", "r456", "r457", "r458", "r462", "r463", "r464", "r465", "r466", "r467", "r471", "r472", "r473", "r474" ], "lang": { "en-us": { "role": { "documentation": "Type of plan designed to provide participants with retirement benefits. Includes, but is not limited to, retirement benefit arrangement for defined benefit pension and other postretirement plans, retirement benefit arrangement for defined contribution pension and other postretirement plans, and special and contractual termination benefits payable upon retirement.", "label": "Retirement Plan Type [Domain]" } } }, "localname": "RetirementPlanTypeDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-13-benefit-plans", "http://www.fbvirginia.com/20211231/role/statement-note-13-benefit-plans-details-textual" ], "xbrltype": "domainItemType" }, "us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax": { "auth_ref": [ "r156", "r157", "r162", "r167", "r168", "r172", "r173", "r174", "r384", "r385", "r686" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income": { "order": 0.0, "parentTag": "us-gaap_NoninterestIncome", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.", "label": "Noninterest income", "terseLabel": "Noninterest income" } } }, "localname": "RevenueFromContractWithCustomerIncludingAssessedTax", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income", "http://www.fbvirginia.com/20211231/role/statement-note-23-revenue-recognition-disaggregation-of-revenue-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_RevenueFromContractWithCustomerTextBlock": { "auth_ref": [ "r376", "r377", "r378", "r379", "r380", "r381", "r382", "r383", "r386", "r388" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.", "label": "Revenue from Contract with Customer [Text Block]" } } }, "localname": "RevenueFromContractWithCustomerTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-23-revenue-recognition" ], "xbrltype": "textBlockItemType" }, "us-gaap_Revenues": { "auth_ref": [ "r61", "r108", "r156", "r157", "r162", "r167", "r168", "r172", "r173", "r174", "r267", "r326", "r327", "r328", "r330", "r331", "r332", "r333", "r334", "r335", "r336", "r604", "r734" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).", "label": "us-gaap_Revenues", "verboseLabel": "Total income" } } }, "localname": "Revenues", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-income-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock": { "auth_ref": [ "r33" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables.", "label": "Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]" } } }, "localname": "ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-tables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock": { "auth_ref": [ "r45", "r611", "r612" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of the components of accumulated other comprehensive income (loss).", "label": "Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]" } } }, "localname": "ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-tables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTextBlock": { "auth_ref": [ "r538", "r539" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of a material business combination completed during the period, including background, timing, and recognized assets and liabilities. This table does not include leveraged buyouts.", "label": "Schedule of Business Acquisitions, by Acquisition [Table Text Block]" } } }, "localname": "ScheduleOfBusinessAcquisitionsByAcquisitionTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-tables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock": { "auth_ref": [ "r753", "r757" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of the capital amounts and ratios as of the balance sheet date, indicating whether the entity or entities are in compliance with regulatory capital requirements, by entity.", "label": "Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block]" } } }, "localname": "ScheduleOfComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters-tables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock": { "auth_ref": [ "r521" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years.", "label": "Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]" } } }, "localname": "ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-tables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock": { "auth_ref": [ "r513" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets.", "label": "Schedule of Deferred Tax Assets and Liabilities [Table Text Block]" } } }, "localname": "ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-tables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfDerivativeInstrumentsTextBlock": { "auth_ref": [ "r563", "r565", "r566", "r567", "r568", "r573", "r574", "r579", "r581" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of pertinent information about a derivative or group of derivatives on a disaggregated basis, such as for individual instruments, or small groups of similar instruments. May include a combination of the type of instrument, risks being hedged, notional amount, hedge designation, related hedged item, inception date, maturity date, or other relevant item.", "label": "Schedule of Derivative Instruments [Table Text Block]" } } }, "localname": "ScheduleOfDerivativeInstrumentsTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-tables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock": { "auth_ref": [ "r138" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.", "label": "Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]" } } }, "localname": "ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-14-earnings-per-common-share-tables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock": { "auth_ref": [ "r507" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations.", "label": "Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]" } } }, "localname": "ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-tables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfFairValueOffBalanceSheetRisksTextBlock": { "auth_ref": [ "r601", "r602" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined) which are not recognized in the financial statements (off-balance sheet) because they fail to meet some other criterion for recognition.", "label": "Schedule of Fair Value, Off-balance Sheet Risks [Table Text Block]" } } }, "localname": "ScheduleOfFairValueOffBalanceSheetRisksTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-15-commitments-and-unfunded-credits-tables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock": { "auth_ref": [ "r484" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year.", "label": "Share-based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]" } } }, "localname": "ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-tables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfTemporaryImpairmentLossesInvestmentsTableTextBlock": { "auth_ref": [ "r257" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of investments in an unrealized loss position for which other-than-temporary impairments have not been recognized in earnings (including investments for which a portion of an other-than-temporary impairment has been recognized in other comprehensive income), including: (a) the aggregate related fair value of investments with unrealized losses, (b) the aggregate amount of unrealized losses (that is, the amount by which amortized cost basis exceeds fair value).", "label": "Schedule of Temporary Impairment Losses, Investments [Table Text Block]" } } }, "localname": "ScheduleOfTemporaryImpairmentLossesInvestmentsTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-tables" ], "xbrltype": "textBlockItemType" }, "us-gaap_SecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember": { "auth_ref": [ "r583" ], "lang": { "en-us": { "role": { "documentation": "Fixed rate on U.S. dollar, constant-notional interest rate swap that has its variable-rate leg referenced to Secured Overnight Financing Rate (SOFR) with no additional spread over SOFR on variable-rate leg.", "label": "Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]" } } }, "localname": "SecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-9-subordinated-debt-", "http://www.fbvirginia.com/20211231/role/statement-note-9-subordinated-debt-details-textual" ], "xbrltype": "domainItemType" }, "us-gaap_ShareBasedCompensation": { "auth_ref": [ "r94" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-": { "order": 20.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of noncash expense for share-based payment arrangement.", "label": "Stock-based compensation", "verboseLabel": "Stock-based compensation" } } }, "localname": "ShareBasedCompensation", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-cash-flows-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1": { "auth_ref": [ "r481" ], "lang": { "en-us": { "role": { "documentation": "Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.", "label": "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1", "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-details-textual" ], "xbrltype": "durationItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod": { "auth_ref": [ "r485" ], "lang": { "en-us": { "role": { "documentation": "The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.", "label": "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod", "negatedLabel": "Forfeited, shares (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-summary-of-restricted-stock-unit-activity-details" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue": { "auth_ref": [ "r489" ], "lang": { "en-us": { "role": { "documentation": "Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.", "label": "Forfeited, weighted average grant date fair value (in dollars per share)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-summary-of-restricted-stock-unit-activity-details" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod": { "auth_ref": [ "r487" ], "lang": { "en-us": { "role": { "documentation": "The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).", "label": "Granted, shares (in shares)", "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-summary-of-restricted-stock-unit-activity-details" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue": { "auth_ref": [ "r487" ], "lang": { "en-us": { "role": { "documentation": "The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).", "label": "Granted, weighted average grant date fair value (in dollars per share)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-summary-of-restricted-stock-unit-activity-details" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber": { "auth_ref": [ "r486" ], "lang": { "en-us": { "role": { "documentation": "The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.", "label": "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber", "periodEndLabel": "Unvested, Balance (in shares)", "periodStartLabel": "Unvested, Balance (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-summary-of-restricted-stock-unit-activity-details" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue": { "auth_ref": [ "r486" ], "lang": { "en-us": { "role": { "documentation": "Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.", "label": "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue", "periodEndLabel": "Unvested, weighted average grant date fair value, balance (in dollars per share)", "periodStartLabel": "Unvested, weighted average grant date fair value, balance (in dollars per share)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-summary-of-restricted-stock-unit-activity-details" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod": { "auth_ref": [ "r488" ], "lang": { "en-us": { "role": { "documentation": "The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.", "label": "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod", "negatedLabel": "Vested, shares (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-summary-of-restricted-stock-unit-activity-details" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue": { "auth_ref": [ "r488" ], "lang": { "en-us": { "role": { "documentation": "The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.", "label": "Vested, weighted average grant date fair value (in dollars per share)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-summary-of-restricted-stock-unit-activity-details" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant": { "auth_ref": [ "r492" ], "lang": { "en-us": { "role": { "documentation": "The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.", "label": "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant", "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-details-textual" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod": { "auth_ref": [ "r492" ], "lang": { "en-us": { "role": { "documentation": "Number of shares issued under share-based payment arrangement.", "label": "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod", "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-details-textual" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain": { "auth_ref": [ "r478", "r482" ], "lang": { "en-us": { "role": { "documentation": "Award under share-based payment arrangement.", "label": "Award Type [Domain]" } } }, "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans", "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-summary-of-restricted-stock-unit-activity-details" ], "xbrltype": "domainItemType" }, "us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy": { "auth_ref": [ "r480", "r483" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for award under share-based payment arrangement. Includes, but is not limited to, methodology and assumption used in measuring cost.", "label": "Share-based Payment Arrangement [Policy Text Block]" } } }, "localname": "ShareBasedCompensationOptionAndIncentivePlansPolicy", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-significant-accounting-policies-policies" ], "xbrltype": "textBlockItemType" }, "us-gaap_ShortTermLeaseCost": { "auth_ref": [ "r626", "r632" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-schedule-of-lease-cost-and-additional-information-related-to-operating-leases-details": { "order": 0.0, "parentTag": "us-gaap_LeaseCost", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of short-term lease cost, excluding expense for lease with term of one month or less.", "label": "Short-term lease expense" } } }, "localname": "ShortTermLeaseCost", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-schedule-of-lease-cost-and-additional-information-related-to-operating-leases-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_SoftwareAndSoftwareDevelopmentCostsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Purchased software applications and internally developed software for sale, licensing or long-term internal use.", "label": "Software and Software Development Costs [Member]" } } }, "localname": "SoftwareAndSoftwareDevelopmentCostsMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies", "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual" ], "xbrltype": "domainItemType" }, "us-gaap_SpecialMentionMember": { "auth_ref": [ "r197", "r279" ], "lang": { "en-us": { "role": { "documentation": "A category of financing receivables considered to have potential weaknesses that deserve management's close attention. If left uncorrected, those potential weaknesses may result in a deterioration of the repayment prospects for the asset or of the creditor's position at some future date.", "label": "Special Mention [Member]" } } }, "localname": "SpecialMentionMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-analysis-of-the-credit-risk-profile-of-each-loan-class-details" ], "xbrltype": "domainItemType" }, "us-gaap_StandbyLettersOfCreditMember": { "auth_ref": [ "r320", "r323", "r551", "r795" ], "lang": { "en-us": { "role": { "documentation": "An irrevocable undertaking (typically by a financial institution) to guarantee payment of a specified financial obligation.", "label": "Standby Letters of Credit [Member]" } } }, "localname": "StandbyLettersOfCreditMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-15-commitments-and-unfunded-credits-financial-instruments-representing-credit-risk-details" ], "xbrltype": "domainItemType" }, "us-gaap_StatementEquityComponentsAxis": { "auth_ref": [ "r0", "r32", "r55", "r56", "r57", "r116", "r117", "r118", "r120", "r126", "r128", "r146", "r269", "r374", "r375", "r493", "r494", "r495", "r522", "r523", "r585", "r606", "r607", "r608", "r609", "r610", "r612", "r788", "r789", "r790", "r877" ], "lang": { "en-us": { "role": { "documentation": "Information by component of equity.", "label": "Equity Components [Axis]" } } }, "localname": "StatementEquityComponentsAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity", "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-changes-in-each-component-of-accumulated-other-comprehensive-income-loss-details", "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-changes-in-each-component-of-accumulated-other-comprehensive-income-loss-details-parentheticals" ], "xbrltype": "stringItemType" }, "us-gaap_StatementLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Statement [Line Items]" } } }, "localname": "StatementLineItems", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets", "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets-parentheticals", "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-", "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity", "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity-parentheticals", "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-comprehensive-income", "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-comprehensive-income-parentheticals", "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income", "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies", "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-10-junior-subordinated-debt", "http://www.fbvirginia.com/20211231/role/statement-note-10-junior-subordinated-debt-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes", "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-income-tax-expense-details", "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-income-tax-rate-reconciliation-details", "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details", "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-tables", "http://www.fbvirginia.com/20211231/role/statement-note-12-funds-restrictions-and-reserve-balance", "http://www.fbvirginia.com/20211231/role/statement-note-12-funds-restrictions-and-reserve-balance-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-13-benefit-plans", "http://www.fbvirginia.com/20211231/role/statement-note-13-benefit-plans-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-14-earnings-per-common-share", "http://www.fbvirginia.com/20211231/role/statement-note-14-earnings-per-common-share-basic-and-diluted-earnings-per-share-details", "http://www.fbvirginia.com/20211231/role/statement-note-14-earnings-per-common-share-tables", "http://www.fbvirginia.com/20211231/role/statement-note-15-commitments-and-unfunded-credits", "http://www.fbvirginia.com/20211231/role/statement-note-15-commitments-and-unfunded-credits-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-15-commitments-and-unfunded-credits-financial-instruments-representing-credit-risk-details", "http://www.fbvirginia.com/20211231/role/statement-note-15-commitments-and-unfunded-credits-tables", "http://www.fbvirginia.com/20211231/role/statement-note-16-transactions-with-related-parties", "http://www.fbvirginia.com/20211231/role/statement-note-16-transactions-with-related-parties-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments", "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-operating-lease-rightofuse-asset-and-operating-lease-liability-details", "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-schedule-of-lease-cost-and-additional-information-related-to-operating-leases-details", "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-schedule-of-undiscounted-cash-flows-that-contribute-to-the-operating-lease-liability-details", "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-tables", "http://www.fbvirginia.com/20211231/role/statement-note-18-dividend-reinvestment-plan", "http://www.fbvirginia.com/20211231/role/statement-note-18-dividend-reinvestment-plan-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-assets-measured-at-fair-value-on-a-nonrecurring-basis-details", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-balances-of-assets-measured-at-fair-value-on-recurring-basis-details", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-carrying-values-and-estimated-values-of-financial-instruments-details", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-quantitative-information-about-level-3-fair-value-measurements-details", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-tables", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-amortized-cost-and-fair-value-of-securities-details", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-composition-of-restricted-securities-details", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-investments-in-an-unrealized-loss-position-that-were-temporarily-impaired-details", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-summary-of-amortized-costs-and-fair-values-of-securities-details", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-tables", "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters", "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters-comparison-of-capital-of-company-and-bank-with-minimum-regulatory-guidelines-details", "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters-tables", "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss", "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-changes-in-each-component-of-accumulated-other-comprehensive-income-loss-details", "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-changes-in-each-component-of-accumulated-other-comprehensive-income-loss-details-parentheticals", "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-reclassifications-from-accumulated-other-comprehensive-loss-details", "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-tables", "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans", "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-summary-of-restricted-stock-unit-activity-details", "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-tables", "http://www.fbvirginia.com/20211231/role/statement-note-23-revenue-recognition", "http://www.fbvirginia.com/20211231/role/statement-note-23-revenue-recognition-disaggregation-of-revenue-details", "http://www.fbvirginia.com/20211231/role/statement-note-23-revenue-recognition-tables", "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-", "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-derivative-instruments-components-details", "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-tables", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-tables", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-unaudited-pro-forma-amounts-details", "http://www.fbvirginia.com/20211231/role/statement-note-26-subsequent-events-", "http://www.fbvirginia.com/20211231/role/statement-note-26-subsequent-events-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-balance-sheet-details", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-cash-flows-details", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-income-details", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-tables", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-analysis-of-the-credit-risk-profile-of-each-loan-class-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-loans-acquired-in-business-combinations-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loan-classes-and-an-aging-of-past-due-loans-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loans-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-tables", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-allowance-by-impairment-methodology-and-loans-by-impairment-methodology-details", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-impaired-loans-and-related-allowances-details", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-tables", "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned", "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned-changes-in-balance-for-oreo-details", "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned-tables", "http://www.fbvirginia.com/20211231/role/statement-note-6-premises-and-equipment", "http://www.fbvirginia.com/20211231/role/statement-note-6-premises-and-equipment-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-6-premises-and-equipment-premises-and-equipment-details", "http://www.fbvirginia.com/20211231/role/statement-note-6-premises-and-equipment-tables", "http://www.fbvirginia.com/20211231/role/statement-note-7-deposits", "http://www.fbvirginia.com/20211231/role/statement-note-7-deposits-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-7-deposits-scheduled-maturities-of-time-deposits-details", "http://www.fbvirginia.com/20211231/role/statement-note-7-deposits-tables", "http://www.fbvirginia.com/20211231/role/statement-note-8-other-borrowings", "http://www.fbvirginia.com/20211231/role/statement-note-8-other-borrowings-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-9-subordinated-debt-", "http://www.fbvirginia.com/20211231/role/statement-note-9-subordinated-debt-details-textual", "http://www.fbvirginia.com/20211231/role/statement-significant-accounting-policies-policies" ], "xbrltype": "stringItemType" }, "us-gaap_StatementOfCashFlowsAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Statement of Cash Flows [Abstract]" } } }, "localname": "StatementOfCashFlowsAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "xbrltype": "stringItemType" }, "us-gaap_StatementOfFinancialPositionAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Statement of Financial Position [Abstract]" } } }, "localname": "StatementOfFinancialPositionAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "xbrltype": "stringItemType" }, "us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Statement of Comprehensive Income [Abstract]" } } }, "localname": "StatementOfIncomeAndComprehensiveIncomeAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "xbrltype": "stringItemType" }, "us-gaap_StatementOfStockholdersEquityAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Statement of Stockholders' Equity [Abstract]" } } }, "localname": "StatementOfStockholdersEquityAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "xbrltype": "stringItemType" }, "us-gaap_StatementTable": { "auth_ref": [ "r116", "r117", "r118", "r146", "r686" ], "lang": { "en-us": { "role": { "documentation": "Schedule reflecting a Statement of Income, Statement of Cash Flows, Statement of Financial Position, Statement of Shareholders' Equity and Other Comprehensive Income, or other statement as needed.", "label": "Statement [Table]" } } }, "localname": "StatementTable", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets", "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets-parentheticals", "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-", "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity", "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity-parentheticals", "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-comprehensive-income", "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-comprehensive-income-parentheticals", "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income", "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies", "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-10-junior-subordinated-debt", "http://www.fbvirginia.com/20211231/role/statement-note-10-junior-subordinated-debt-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes", "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-income-tax-expense-details", "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-income-tax-rate-reconciliation-details", "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-net-deferred-tax-assets-details", "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-tables", "http://www.fbvirginia.com/20211231/role/statement-note-12-funds-restrictions-and-reserve-balance", "http://www.fbvirginia.com/20211231/role/statement-note-12-funds-restrictions-and-reserve-balance-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-13-benefit-plans", "http://www.fbvirginia.com/20211231/role/statement-note-13-benefit-plans-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-14-earnings-per-common-share", "http://www.fbvirginia.com/20211231/role/statement-note-14-earnings-per-common-share-basic-and-diluted-earnings-per-share-details", "http://www.fbvirginia.com/20211231/role/statement-note-14-earnings-per-common-share-tables", "http://www.fbvirginia.com/20211231/role/statement-note-15-commitments-and-unfunded-credits", "http://www.fbvirginia.com/20211231/role/statement-note-15-commitments-and-unfunded-credits-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-15-commitments-and-unfunded-credits-financial-instruments-representing-credit-risk-details", "http://www.fbvirginia.com/20211231/role/statement-note-15-commitments-and-unfunded-credits-tables", "http://www.fbvirginia.com/20211231/role/statement-note-16-transactions-with-related-parties", "http://www.fbvirginia.com/20211231/role/statement-note-16-transactions-with-related-parties-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments", "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-operating-lease-rightofuse-asset-and-operating-lease-liability-details", "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-schedule-of-lease-cost-and-additional-information-related-to-operating-leases-details", "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-schedule-of-undiscounted-cash-flows-that-contribute-to-the-operating-lease-liability-details", "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-tables", "http://www.fbvirginia.com/20211231/role/statement-note-18-dividend-reinvestment-plan", "http://www.fbvirginia.com/20211231/role/statement-note-18-dividend-reinvestment-plan-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-assets-measured-at-fair-value-on-a-nonrecurring-basis-details", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-balances-of-assets-measured-at-fair-value-on-recurring-basis-details", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-carrying-values-and-estimated-values-of-financial-instruments-details", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-quantitative-information-about-level-3-fair-value-measurements-details", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-tables", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-amortized-cost-and-fair-value-of-securities-details", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-composition-of-restricted-securities-details", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-investments-in-an-unrealized-loss-position-that-were-temporarily-impaired-details", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-summary-of-amortized-costs-and-fair-values-of-securities-details", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-tables", "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters", "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters-comparison-of-capital-of-company-and-bank-with-minimum-regulatory-guidelines-details", "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters-tables", "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss", "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-changes-in-each-component-of-accumulated-other-comprehensive-income-loss-details", "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-changes-in-each-component-of-accumulated-other-comprehensive-income-loss-details-parentheticals", "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-reclassifications-from-accumulated-other-comprehensive-loss-details", "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-tables", "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans", "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-summary-of-restricted-stock-unit-activity-details", "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-tables", "http://www.fbvirginia.com/20211231/role/statement-note-23-revenue-recognition", "http://www.fbvirginia.com/20211231/role/statement-note-23-revenue-recognition-disaggregation-of-revenue-details", "http://www.fbvirginia.com/20211231/role/statement-note-23-revenue-recognition-tables", "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-", "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-derivative-instruments-components-details", "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-tables", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-consideration-paid-and-the-assets-acquired-and-liabilities-assumed-details", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-tables", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-unaudited-pro-forma-amounts-details", "http://www.fbvirginia.com/20211231/role/statement-note-26-subsequent-events-", "http://www.fbvirginia.com/20211231/role/statement-note-26-subsequent-events-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-balance-sheet-details", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-cash-flows-details", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-income-details", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-tables", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-analysis-of-the-credit-risk-profile-of-each-loan-class-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-loans-acquired-in-business-combinations-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loan-classes-and-an-aging-of-past-due-loans-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-summary-of-loans-details", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-tables", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-allowance-by-impairment-methodology-and-loans-by-impairment-methodology-details", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-impaired-loans-and-related-allowances-details", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-tables", "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned", "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned-changes-in-balance-for-oreo-details", "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned-tables", "http://www.fbvirginia.com/20211231/role/statement-note-6-premises-and-equipment", "http://www.fbvirginia.com/20211231/role/statement-note-6-premises-and-equipment-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-6-premises-and-equipment-premises-and-equipment-details", "http://www.fbvirginia.com/20211231/role/statement-note-6-premises-and-equipment-tables", "http://www.fbvirginia.com/20211231/role/statement-note-7-deposits", "http://www.fbvirginia.com/20211231/role/statement-note-7-deposits-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-7-deposits-scheduled-maturities-of-time-deposits-details", "http://www.fbvirginia.com/20211231/role/statement-note-7-deposits-tables", "http://www.fbvirginia.com/20211231/role/statement-note-8-other-borrowings", "http://www.fbvirginia.com/20211231/role/statement-note-8-other-borrowings-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-9-subordinated-debt-", "http://www.fbvirginia.com/20211231/role/statement-note-9-subordinated-debt-details-textual", "http://www.fbvirginia.com/20211231/role/statement-significant-accounting-policies-policies" ], "xbrltype": "stringItemType" }, "us-gaap_StockIssued1": { "auth_ref": [ "r100", "r101", "r102" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The fair value of stock issued in noncash financing activities.", "label": "us-gaap_StockIssued1", "terseLabel": "Issuance of common stock, dividend reinvestment plan" } } }, "localname": "StockIssued1", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockIssuedDuringPeriodSharesAcquisitions": { "auth_ref": [ "r12", "r13", "r375" ], "lang": { "en-us": { "role": { "documentation": "Number of shares of stock issued during the period pursuant to acquisitions.", "label": "Shares issued, acquisition (in shares)" } } }, "localname": "StockIssuedDuringPeriodSharesAcquisitions", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity-parentheticals" ], "xbrltype": "sharesItemType" }, "us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan": { "auth_ref": [ "r374" ], "lang": { "en-us": { "role": { "documentation": "Number of shares issued during the period from a dividend reinvestment plan (DRIP). A dividend reinvestment plan allows the shareholders to reinvest dividends paid to them by the entity on new issues of stock by the entity.", "label": "Issuance of common stock, dividend reinvestment plan, shares (in shares)", "terseLabel": "Stock Issued During Period, Shares, Dividend Reinvestment Plan (in shares)" } } }, "localname": "StockIssuedDuringPeriodSharesDividendReinvestmentPlan", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity-parentheticals", "http://www.fbvirginia.com/20211231/role/statement-note-18-dividend-reinvestment-plan-details-textual" ], "xbrltype": "sharesItemType" }, "us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationGross": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Number, before forfeiture, of shares issued under share-based payment arrangement. Excludes employee stock ownership plan (ESOP).", "label": "Issuance of common stock, stock incentive plan, shares (in shares)" } } }, "localname": "StockIssuedDuringPeriodSharesShareBasedCompensationGross", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity-parentheticals" ], "xbrltype": "sharesItemType" }, "us-gaap_StockIssuedDuringPeriodValueAcquisitions": { "auth_ref": [ "r32", "r374", "r375" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Value of stock issued pursuant to acquisitions during the period.", "label": "Shares issued to shareholders of The Bank of Fincastle, net of costs (1,348,065 shares)" } } }, "localname": "StockIssuedDuringPeriodValueAcquisitions", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockIssuedDuringPeriodValueDividendReinvestmentPlan": { "auth_ref": [ "r374" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Value of stock issued during the period from a dividend reinvestment plan (DRIP). A dividend reinvestment plan allows the holder of the stock to reinvest dividends paid to them by the entity on new issues of stock by the entity.", "label": "Issuance of common stock, dividend reinvestment plan" } } }, "localname": "StockIssuedDuringPeriodValueDividendReinvestmentPlan", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockIssuedDuringPeriodValueShareBasedCompensationGross": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Value, before forfeiture, of shares issued under share-based payment arrangement. Excludes employee stock ownership plan (ESOP).", "label": "Issuance of 12,492 shares common stock, stock incentive plan" } } }, "localname": "StockIssuedDuringPeriodValueShareBasedCompensationGross", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockRepurchasedDuringPeriodShares": { "auth_ref": [ "r12", "r13", "r374", "r375" ], "lang": { "en-us": { "role": { "documentation": "Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.", "label": "Repurchase of common stock shares (in shares)" } } }, "localname": "StockRepurchasedDuringPeriodShares", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity-parentheticals" ], "xbrltype": "sharesItemType" }, "us-gaap_StockRepurchasedDuringPeriodValue": { "auth_ref": [ "r12", "r13", "r374", "r375" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.", "label": "us-gaap_StockRepurchasedDuringPeriodValue", "negatedLabel": "Repurchase of common stock" } } }, "localname": "StockRepurchasedDuringPeriodValue", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockholdersEquity": { "auth_ref": [ "r13", "r18", "r19", "r108", "r210", "r267", "r604", "r643" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets": { "order": 2.0, "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.", "label": "us-gaap_StockholdersEquity", "periodEndLabel": "Balance", "periodStartLabel": "Balance", "totalLabel": "Total shareholders\u2019 equity", "verboseLabel": "Total shareholders\u2019 equity" } } }, "localname": "StockholdersEquity", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets", "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity", "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-changes-in-each-component-of-accumulated-other-comprehensive-income-loss-details", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-balance-sheet-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockholdersEquityAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Shareholders\u2019 Equity" } } }, "localname": "StockholdersEquityAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets" ], "xbrltype": "stringItemType" }, "us-gaap_SubordinatedBorrowingsDisclosureTextBlock": { "auth_ref": [ "r748" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for borrowings under subordinated debt agreements that qualify as available in computing net capital under SEC's uniform net capital rule, including restrictive covenants, collateral, interest rates and due dates, amounts due by date and amount owed in total.", "label": "Subordinated Borrowings Disclosure [Text Block]" } } }, "localname": "SubordinatedBorrowingsDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-9-subordinated-debt-" ], "xbrltype": "textBlockItemType" }, "us-gaap_SubordinatedDebt": { "auth_ref": [ "r7", "r9", "r698", "r766" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets": { "order": 1.0, "parentTag": "us-gaap_Liabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Including the current and noncurrent portions, carrying value as of the balance sheet date of subordinated debt (with initial maturities beyond one year or beyond the operating cycle if longer). Subordinated debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets.", "label": "Subordinated debt", "verboseLabel": "Subordinated debt" } } }, "localname": "SubordinatedDebt", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-balance-sheet-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_SubordinatedDebtMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This element represents domestic or foreign subordinated debt. Subordinated debt has a lower priority of repayment in liquidation of the entity's assets.", "label": "Subordinated Debt [Member]" } } }, "localname": "SubordinatedDebtMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies", "http://www.fbvirginia.com/20211231/role/statement-note-1-nature-of-banking-activities-and-significant-accounting-policies-details-textual" ], "xbrltype": "domainItemType" }, "us-gaap_SubsequentEventsTextBlock": { "auth_ref": [ "r644", "r646" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.", "label": "Subsequent Events [Text Block]" } } }, "localname": "SubsequentEventsTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-26-subsequent-events-" ], "xbrltype": "textBlockItemType" }, "us-gaap_SubstandardMember": { "auth_ref": [ "r197", "r279" ], "lang": { "en-us": { "role": { "documentation": "A category of financing receivables that are inadequately protected by the current sound worth and paying capacity of the obligor or of the collateral pledged, if any. Loans so classified have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that the creditor will sustain some loss if the deficiencies are not corrected.", "label": "Substandard [Member]" } } }, "localname": "SubstandardMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-analysis-of-the-credit-risk-profile-of-each-loan-class-details" ], "xbrltype": "domainItemType" }, "us-gaap_SupplementalCashFlowInformationAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Supplemental Disclosures of Cash Flow Information" } } }, "localname": "SupplementalCashFlowInformationAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-" ], "xbrltype": "stringItemType" }, "us-gaap_SupplementalEmployeeRetirementPlanDefinedBenefitMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Plan designed to provide limited group of employees with supplemental retirement benefits, in addition to other pension benefits. Includes, but is not limited to, defined benefit and defined contribution plans.", "label": "Supplemental Employee Retirement Plan [Member]" } } }, "localname": "SupplementalEmployeeRetirementPlanDefinedBenefitMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-13-benefit-plans", "http://www.fbvirginia.com/20211231/role/statement-note-13-benefit-plans-details-textual" ], "xbrltype": "domainItemType" }, "us-gaap_SuppliesExpense": { "auth_ref": [ "r726" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income": { "order": 7.0, "parentTag": "us-gaap_NoninterestExpense", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of expense associated with supplies that were used during the current accounting period.", "label": "Supplies", "verboseLabel": "Supplies" } } }, "localname": "SuppliesExpense", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-income", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-statements-of-income-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_TableTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "us-gaap_TableTextBlock", "terseLabel": "Notes Tables" } } }, "localname": "TableTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-11-income-taxes-tables", "http://www.fbvirginia.com/20211231/role/statement-note-14-earnings-per-common-share-tables", "http://www.fbvirginia.com/20211231/role/statement-note-15-commitments-and-unfunded-credits-tables", "http://www.fbvirginia.com/20211231/role/statement-note-17-lease-commitments-tables", "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-tables", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-tables", "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters-tables", "http://www.fbvirginia.com/20211231/role/statement-note-21-accumulated-other-comprehensive-income-loss-tables", "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-tables", "http://www.fbvirginia.com/20211231/role/statement-note-23-revenue-recognition-tables", "http://www.fbvirginia.com/20211231/role/statement-note-24-derivative-financial-instruments-tables", "http://www.fbvirginia.com/20211231/role/statement-note-25-acquisitions-tables", "http://www.fbvirginia.com/20211231/role/statement-note-27-parent-company-only-financial-statements-tables", "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-tables", "http://www.fbvirginia.com/20211231/role/statement-note-4-allowance-for-loan-losses-tables", "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned-tables", "http://www.fbvirginia.com/20211231/role/statement-note-6-premises-and-equipment-tables", "http://www.fbvirginia.com/20211231/role/statement-note-7-deposits-tables" ], "xbrltype": "stringItemType" }, "us-gaap_TierOneLeverageCapital": { "auth_ref": [ "r753" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of Tier 1 leverage capital as defined by regulatory framework.", "label": "Tier 1 Capital (to Average Assets), actual amount" } } }, "localname": "TierOneLeverageCapital", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters-comparison-of-capital-of-company-and-bank-with-minimum-regulatory-guidelines-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_TierOneLeverageCapitalRequiredForCapitalAdequacy": { "auth_ref": [ "r753", "r757" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of minimum Tier 1 leverage capital required for capital adequacy as defined by regulatory framework.", "label": "Tier 1 Capital (to Average Assets), minimum capital requirement amount" } } }, "localname": "TierOneLeverageCapitalRequiredForCapitalAdequacy", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters-comparison-of-capital-of-company-and-bank-with-minimum-regulatory-guidelines-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets": { "auth_ref": [ "r753", "r757" ], "lang": { "en-us": { "role": { "documentation": "Ratio of minimum Tier 1 leverage capital to average assets required for capital adequacy as defined by regulatory framework.", "label": "Tier 1 Capital (to Average Assets), minimum capital requirement ratio" } } }, "localname": "TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters-comparison-of-capital-of-company-and-bank-with-minimum-regulatory-guidelines-details" ], "xbrltype": "pureItemType" }, "us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalized": { "auth_ref": [ "r753" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of minimum Tier 1 leverage capital categorized as well capitalized as defined by regulatory framework for prompt corrective action.", "label": "Tier 1 Capital (to Average Assets), minimum to be well capitalized under prompt corrective action provisions, amount" } } }, "localname": "TierOneLeverageCapitalRequiredToBeWellCapitalized", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters-comparison-of-capital-of-company-and-bank-with-minimum-regulatory-guidelines-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets": { "auth_ref": [ "r753" ], "lang": { "en-us": { "role": { "documentation": "Ratio of minimum Tier 1 leverage capital to average assets categorized as well capitalized as defined by regulatory framework for prompt corrective action.", "label": "Tier 1 Capital (to Average Assets), minimum to be well capitalized under prompt corrective action provisions, ratio" } } }, "localname": "TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters-comparison-of-capital-of-company-and-bank-with-minimum-regulatory-guidelines-details" ], "xbrltype": "pureItemType" }, "us-gaap_TierOneLeverageCapitalToAverageAssets": { "auth_ref": [ "r753" ], "lang": { "en-us": { "role": { "documentation": "Ratio of Tier 1 capital to average assets as defined by regulatory framework.", "label": "Tier 1 Capital (to Average Assets), actual ratio" } } }, "localname": "TierOneLeverageCapitalToAverageAssets", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters-comparison-of-capital-of-company-and-bank-with-minimum-regulatory-guidelines-details" ], "xbrltype": "pureItemType" }, "us-gaap_TierOneRiskBasedCapital": { "auth_ref": [ "r753" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of Tier 1 risk-based capital as defined by regulatory framework.", "label": "Tier 1 Capital (to Risk-Weighted Assets), actual amount" } } }, "localname": "TierOneRiskBasedCapital", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters-comparison-of-capital-of-company-and-bank-with-minimum-regulatory-guidelines-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_TierOneRiskBasedCapitalRequiredForCapitalAdequacy": { "auth_ref": [ "r753", "r757" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of minimum Tier 1 risk-based capital required for capital adequacy as defined by regulatory framework.", "label": "Tier 1 Capital (to Risk-Weighted Assets), minimum capital requirement amount" } } }, "localname": "TierOneRiskBasedCapitalRequiredForCapitalAdequacy", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters-comparison-of-capital-of-company-and-bank-with-minimum-regulatory-guidelines-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets": { "auth_ref": [ "r753", "r757" ], "lang": { "en-us": { "role": { "documentation": "Ratio of minimum Tier 1 risk-based capital to risk-weighted assets required for capital adequacy as defined by regulatory framework.", "label": "Tier 1 Capital (to Risk-Weighted Assets), minimum capital requirement ratio" } } }, "localname": "TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters-comparison-of-capital-of-company-and-bank-with-minimum-regulatory-guidelines-details" ], "xbrltype": "pureItemType" }, "us-gaap_TierOneRiskBasedCapitalRequiredToBeWellCapitalized": { "auth_ref": [ "r753" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of minimum Tier 1 risk-based capital categorized as well capitalized as defined by regulatory framework for prompt corrective action.", "label": "Tier 1 Capital (to Risk-Weighted Assets), minimum to be well capitalized under prompt corrective action provisions, amount" } } }, "localname": "TierOneRiskBasedCapitalRequiredToBeWellCapitalized", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters-comparison-of-capital-of-company-and-bank-with-minimum-regulatory-guidelines-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets": { "auth_ref": [ "r753" ], "lang": { "en-us": { "role": { "documentation": "Ratio of minimum Tier 1 risk-based capital to risk-weighted assets categorized as well capitalized as defined by regulatory framework for prompt corrective action.", "label": "Tier 1 Capital (to Risk-Weighted Assets), minimum to be well capitalized under prompt corrective action provisions, ratio" } } }, "localname": "TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters-comparison-of-capital-of-company-and-bank-with-minimum-regulatory-guidelines-details" ], "xbrltype": "pureItemType" }, "us-gaap_TierOneRiskBasedCapitalToRiskWeightedAssets": { "auth_ref": [ "r753" ], "lang": { "en-us": { "role": { "documentation": "Ratio of Tier 1 risk-based capital to risk-weighted assets as defined by regulatory framework.", "label": "Tier 1 Capital (to Risk-Weighted Assets), actual ratio" } } }, "localname": "TierOneRiskBasedCapitalToRiskWeightedAssets", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-20-regulatory-matters-comparison-of-capital-of-company-and-bank-with-minimum-regulatory-guidelines-details" ], "xbrltype": "pureItemType" }, "us-gaap_TimeDepositMaturitiesAfterYearFive": { "auth_ref": [ "r324" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-7-deposits-scheduled-maturities-of-time-deposits-details": { "order": 5.0, "parentTag": "us-gaap_TimeDeposits", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of time deposit maturing after fifth fiscal year following current fiscal year. Time deposit includes, but is not limited to, certificate of deposit. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "us-gaap_TimeDepositMaturitiesAfterYearFive", "verboseLabel": "Thereafter" } } }, "localname": "TimeDepositMaturitiesAfterYearFive", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-7-deposits-scheduled-maturities-of-time-deposits-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_TimeDepositMaturitiesTableTextBlock": { "auth_ref": [ "r324" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of time deposit liability maturities.", "label": "Time Deposit Maturities [Table Text Block]" } } }, "localname": "TimeDepositMaturitiesTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-7-deposits-tables" ], "xbrltype": "textBlockItemType" }, "us-gaap_TimeDepositMaturitiesYearFive": { "auth_ref": [ "r324" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-7-deposits-scheduled-maturities-of-time-deposits-details": { "order": 4.0, "parentTag": "us-gaap_TimeDeposits", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of time deposit maturing in fifth fiscal year following current fiscal year. Time deposit includes, but is not limited to, certificate of deposit. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "us-gaap_TimeDepositMaturitiesYearFive", "verboseLabel": "2026" } } }, "localname": "TimeDepositMaturitiesYearFive", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-7-deposits-scheduled-maturities-of-time-deposits-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_TimeDepositMaturitiesYearFour": { "auth_ref": [ "r324" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-7-deposits-scheduled-maturities-of-time-deposits-details": { "order": 3.0, "parentTag": "us-gaap_TimeDeposits", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of time deposit maturing in fourth fiscal year following current fiscal year. Time deposit includes, but is not limited to, certificate of deposit. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "us-gaap_TimeDepositMaturitiesYearFour", "verboseLabel": "2025" } } }, "localname": "TimeDepositMaturitiesYearFour", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-7-deposits-scheduled-maturities-of-time-deposits-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_TimeDepositMaturitiesYearOne": { "auth_ref": [ "r324" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-7-deposits-scheduled-maturities-of-time-deposits-details": { "order": 0.0, "parentTag": "us-gaap_TimeDeposits", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of time deposit maturing in next fiscal year following current fiscal year. Time deposit includes, but is not limited to, certificate of deposit. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "us-gaap_TimeDepositMaturitiesYearOne", "verboseLabel": "2022" } } }, "localname": "TimeDepositMaturitiesYearOne", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-7-deposits-scheduled-maturities-of-time-deposits-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_TimeDepositMaturitiesYearThree": { "auth_ref": [ "r324" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-7-deposits-scheduled-maturities-of-time-deposits-details": { "order": 2.0, "parentTag": "us-gaap_TimeDeposits", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of time deposit maturing in third fiscal year following current fiscal year. Time deposit includes, but is not limited to, certificate of deposit. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "us-gaap_TimeDepositMaturitiesYearThree", "verboseLabel": "2024" } } }, "localname": "TimeDepositMaturitiesYearThree", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-7-deposits-scheduled-maturities-of-time-deposits-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_TimeDepositMaturitiesYearTwo": { "auth_ref": [ "r324" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-note-7-deposits-scheduled-maturities-of-time-deposits-details": { "order": 1.0, "parentTag": "us-gaap_TimeDeposits", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of time deposit maturing in second fiscal year following current fiscal year. Time deposit includes, but is not limited to, certificate of deposit. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "us-gaap_TimeDepositMaturitiesYearTwo", "verboseLabel": "2023" } } }, "localname": "TimeDepositMaturitiesYearTwo", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-7-deposits-scheduled-maturities-of-time-deposits-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_TimeDeposits": { "auth_ref": [ "r703", "r747" ], "calculation": { "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets": { "order": 1.0, "parentTag": "us-gaap_Deposits", "weight": 1.0 }, "http://www.fbvirginia.com/20211231/role/statement-note-7-deposits-scheduled-maturities-of-time-deposits-details": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of time deposit liabilities, including certificates of deposit.", "label": "Time deposits", "totalLabel": "Total time deposits" } } }, "localname": "TimeDeposits", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-balance-sheets", "http://www.fbvirginia.com/20211231/role/statement-note-7-deposits-scheduled-maturities-of-time-deposits-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_TimeDepositsAtOrAboveFDICInsuranceLimit": { "auth_ref": [ "r747" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of time deposit liabilities, including certificates of deposit, in denominations that meet or exceed the Federal Deposit Insurance Corporation (FDIC) insurance limit.", "label": "us-gaap_TimeDepositsAtOrAboveFDICInsuranceLimit", "terseLabel": "Time Deposits, at or Above FDIC Insurance Limit" } } }, "localname": "TimeDepositsAtOrAboveFDICInsuranceLimit", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-7-deposits-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_TransferToOtherRealEstate": { "auth_ref": [ "r100", "r101", "r102" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Value transferred from mortgage loans to real estate owned (REO) in noncash transactions.", "label": "Transfer from loans to other real estate owned", "terseLabel": "Transfers in" } } }, "localname": "TransferToOtherRealEstate", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-consolidated-statements-of-cash-flows-", "http://www.fbvirginia.com/20211231/role/statement-note-5-other-real-estate-owned-changes-in-balance-for-oreo-details" ], "xbrltype": "monetaryItemType" }, "us-gaap_TransfersAndServicingOfFinancialAssetsTransfersOfFinancialAssetsPolicy": { "auth_ref": [ "r647", "r657", "r658", "r663" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for transfers of financial assets, including securitization transactions. The disclosure is generally expected to include how the entity determines whether a transaction is accounted for as a sale or financing, and the initial and subsequent accounting for such a transaction. The disclosure also may address how interests that are obtained and sold, or those that continue to be held, in such transactions are measured and accounted for, and the methodology and significant assumptions used to value such interests, and the gains or losses resulting from the sale.", "label": "Transfers and Servicing of Financial Assets, Transfers of Financial Assets, Policy [Policy Text Block]" } } }, "localname": "TransfersAndServicingOfFinancialAssetsTransfersOfFinancialAssetsPolicy", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-significant-accounting-policies-policies" ], "xbrltype": "textBlockItemType" }, "us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain": { "auth_ref": [ "r245", "r249", "r262", "r263", "r264", "r363", "r373", "r584", "r648", "r649", "r650", "r651", "r652", "r653", "r654", "r655", "r656", "r659", "r660", "r661", "r662", "r664", "r666", "r667", "r668", "r669", "r670", "r671", "r672", "r673", "r674", "r675", "r676", "r677", "r678", "r679", "r680", "r681", "r842", "r843", "r844", "r845", "r846", "r847", "r848" ], "lang": { "en-us": { "role": { "documentation": "Instrument or contract that imposes a contractual obligation to deliver cash or another financial instrument or to exchange other financial instruments on potentially unfavorable terms and conveys a contractual right to receive cash or another financial instrument or to exchange other financial instruments on potentially favorable terms.", "label": "Financial Instruments [Domain]" } } }, "localname": "TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-15-commitments-and-unfunded-credits-financial-instruments-representing-credit-risk-details", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-details-textual" ], "xbrltype": "domainItemType" }, "us-gaap_USStatesAndPoliticalSubdivisionsMember": { "auth_ref": [ "r414", "r794" ], "lang": { "en-us": { "role": { "documentation": "Bonds or similar securities issued by state, city, or local US governments or the agencies operated by state, city, or local governments. Debt securities issued by state governments may include bond issuances of US state authorities including, for example, but not limited to, housing authorities, dormitory authorities, and general obligations while debt securities issued by political subdivisions of US states would include, for example, debt issuances by county, borough, city, or municipal governments.", "label": "US States and Political Subdivisions Debt Securities [Member]" } } }, "localname": "USStatesAndPoliticalSubdivisionsMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-2-securities", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-investments-in-an-unrealized-loss-position-that-were-temporarily-impaired-details", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-summary-of-amortized-costs-and-fair-values-of-securities-details" ], "xbrltype": "domainItemType" }, "us-gaap_USTreasurySecuritiesMember": { "auth_ref": [ "r112", "r414", "r457", "r735" ], "lang": { "en-us": { "role": { "documentation": "This category includes information about debt securities issued by the United States Department of the Treasury and backed by the United States government. Such securities primarily consist of treasury bills (short-term maturities - one year or less), treasury notes (intermediate term maturities - two to ten years), and treasury bonds (long-term maturities - ten to thirty years).", "label": "US Treasury Securities [Member]" } } }, "localname": "USTreasurySecuritiesMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-balances-of-assets-measured-at-fair-value-on-recurring-basis-details", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-details-textual", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-investments-in-an-unrealized-loss-position-that-were-temporarily-impaired-details", "http://www.fbvirginia.com/20211231/role/statement-note-2-securities-summary-of-amortized-costs-and-fair-values-of-securities-details" ], "xbrltype": "domainItemType" }, "us-gaap_UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums": { "auth_ref": [ "r214" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of deferred fees paid by borrowers and unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of loans that are being amortized into income as an adjustment to yield. Excludes amounts for loans and leases covered under loss sharing agreements.", "label": "us-gaap_UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums", "terseLabel": "Unamortized Loan Commitment and Origination Fees and Unamortized Discounts or Premiums, Total" } } }, "localname": "UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-3-loans-details-textual" ], "xbrltype": "monetaryItemType" }, "us-gaap_UseOfEstimates": { "auth_ref": [ "r147", "r148", "r150", "r151", "r152", "r153", "r154" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for the use of estimates in the preparation of financial statements in conformity with generally accepted accounting principles.", "label": "Use of Estimates, Policy [Policy Text Block]" } } }, "localname": "UseOfEstimates", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-significant-accounting-policies-policies" ], "xbrltype": "textBlockItemType" }, "us-gaap_ValuationTechniqueAxis": { "auth_ref": [ "r591" ], "lang": { "en-us": { "role": { "documentation": "Information by valuation approach and technique.", "label": "Valuation Approach and Technique [Axis]" } } }, "localname": "ValuationTechniqueAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-quantitative-information-about-level-3-fair-value-measurements-details" ], "xbrltype": "stringItemType" }, "us-gaap_ValuationTechniqueDomain": { "auth_ref": [ "r591" ], "lang": { "en-us": { "role": { "documentation": "Valuation approach and technique.", "label": "Valuation Approach and Technique [Domain]" } } }, "localname": "ValuationTechniqueDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-19-fair-value-measurements-quantitative-information-about-level-3-fair-value-measurements-details" ], "xbrltype": "domainItemType" }, "us-gaap_VariableRateAxis": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Information by type of variable rate.", "label": "Variable Rate [Axis]" } } }, "localname": "VariableRateAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-9-subordinated-debt-", "http://www.fbvirginia.com/20211231/role/statement-note-9-subordinated-debt-details-textual" ], "xbrltype": "stringItemType" }, "us-gaap_VariableRateDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Interest rate that fluctuates over time as a result of an underlying benchmark interest rate or index.", "label": "Variable Rate [Domain]" } } }, "localname": "VariableRateDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-9-subordinated-debt-", "http://www.fbvirginia.com/20211231/role/statement-note-9-subordinated-debt-details-textual" ], "xbrltype": "domainItemType" }, "us-gaap_VestingAxis": { "auth_ref": [ "r492" ], "lang": { "en-us": { "role": { "documentation": "Information by vesting schedule of award under share-based payment arrangement.", "label": "Vesting [Axis]" } } }, "localname": "VestingAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans", "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-details-textual" ], "xbrltype": "stringItemType" }, "us-gaap_VestingDomain": { "auth_ref": [ "r492" ], "lang": { "en-us": { "role": { "documentation": "Vesting schedule of award under share-based payment arrangement.", "label": "Vesting [Domain]" } } }, "localname": "VestingDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans", "http://www.fbvirginia.com/20211231/role/statement-note-22-stock-compensation-plans-details-textual" ], "xbrltype": "domainItemType" }, "us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding": { "auth_ref": [ "r133", "r138" ], "lang": { "en-us": { "role": { "documentation": "The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.", "label": "us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding", "verboseLabel": "Weighted average shares outstanding \u2013 diluted (in shares)" } } }, "localname": "WeightedAverageNumberOfDilutedSharesOutstanding", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-14-earnings-per-common-share-basic-and-diluted-earnings-per-share-details" ], "xbrltype": "sharesItemType" }, "us-gaap_WeightedAverageNumberOfSharesOutstandingBasic": { "auth_ref": [ "r131", "r138" ], "lang": { "en-us": { "role": { "documentation": "Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.", "label": "Weighted average shares outstanding \u2013 basic (in shares)" } } }, "localname": "WeightedAverageNumberOfSharesOutstandingBasic", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-14-earnings-per-common-share-basic-and-diluted-earnings-per-share-details" ], "xbrltype": "sharesItemType" }, "us-gaap_WeightedAverageNumberOfSharesRestrictedStock": { "auth_ref": [ "r132" ], "lang": { "en-us": { "role": { "documentation": "Number of shares of restricted stock determined by relating the portion of time within a reporting period that restricted shares have been outstanding to the total time in that period. Restricted shares are subject to sales, contractual, regulatory or other restrictions that prevent or inhibit the holder from freely disposing of them before the restriction ends.", "label": "Potentially dilutive common shares \u2013 restricted stock units (in shares)" } } }, "localname": "WeightedAverageNumberOfSharesRestrictedStock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://www.fbvirginia.com/20211231/role/statement-note-14-earnings-per-common-share-basic-and-diluted-earnings-per-share-details" ], "xbrltype": "sharesItemType" } }, "unitCount": 8 } }, "std_ref": { "r0": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "105", "URI": "http://asc.fasb.org/extlink&oid=124434974&loc=SL124442142-165695" }, "r1": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-04(Schedule I))", "Topic": "205", "URI": "http://asc.fasb.org/extlink&oid=120391182&loc=d3e5864-122674" }, "r10": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(26)(a))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r100": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123431023&loc=d3e4304-108586" }, "r101": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123431023&loc=d3e4313-108586" }, "r102": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123431023&loc=d3e4332-108586" }, "r103": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123431023&loc=SL98516268-108586" }, "r104": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=123372394&loc=d3e18823-107790" }, "r105": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=123372394&loc=d3e18823-107790" }, "r106": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08(c))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690" }, "r107": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08(f))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690" }, "r108": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08(g)(1)(ii))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690" }, "r109": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08(h)(1)(Note 1))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690" }, "r11": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(26)(b))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r110": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08(h)(2))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690" }, "r111": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08(h))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690" }, "r112": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08(m)(1)(ii)(A))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690" }, "r113": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08(n))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690" }, "r114": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.12-04(a))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e24072-122690" }, "r115": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "235", "URI": "http://asc.fasb.org/topic&trid=2122369" }, "r116": { "Name": "Accounting Standards Codification", "Paragraph": "23", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124436220&loc=d3e21914-107793" }, "r117": { "Name": "Accounting Standards Codification", "Paragraph": "24", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124436220&loc=d3e21930-107793" }, "r118": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124436220&loc=d3e21711-107793" }, "r119": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)(2)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22499-107794" }, "r12": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(28))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r120": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)(3)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22499-107794" }, "r121": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22694-107794" }, "r122": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22694-107794" }, "r123": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22583-107794" }, "r124": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22595-107794" }, "r125": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22644-107794" }, "r126": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22644-107794" }, "r127": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22658-107794" }, "r128": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22663-107794" }, "r129": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 11.M.Q2)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=122038215&loc=d3e31137-122693" }, "r13": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(29))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r130": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "250", "URI": "http://asc.fasb.org/topic&trid=2122394" }, "r131": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=125511455&loc=d3e1448-109256" }, "r132": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=125511455&loc=d3e2646-109256" }, "r133": { "Name": "Accounting Standards Codification", "Paragraph": "16", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=125511455&loc=d3e1505-109256" }, "r134": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=125511455&loc=d3e1252-109256" }, "r135": { "Name": "Accounting Standards Codification", "Paragraph": "60B", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=125511455&loc=SL5780133-109256" }, "r136": { "Name": "Accounting Standards Codification", "Paragraph": "60B", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=125511455&loc=SL5780133-109256" }, "r137": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=125511455&loc=d3e1337-109256" }, "r138": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257" }, "r139": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257" }, "r14": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(3))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r140": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=124432515&loc=d3e3630-109257" }, "r141": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=109243012&loc=SL65017193-207537" }, "r142": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=125512782&loc=d3e3842-109258" }, "r143": { "Name": "Accounting Standards Codification", "Paragraph": "52", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=125512782&loc=d3e4984-109258" }, "r144": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "260", "URI": "http://asc.fasb.org/topic&trid=2144383" }, "r145": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "270", "URI": "http://asc.fasb.org/extlink&oid=124437754&loc=d3e639-108305" }, "r146": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "272", "URI": "http://asc.fasb.org/extlink&oid=125520817&loc=d3e70191-108054" }, "r147": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e5967-108592" }, "r148": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e5967-108592" }, "r149": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e5967-108592" }, "r15": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(30)(a)(1))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r150": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6161-108592" }, "r151": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6191-108592" }, "r152": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6061-108592" }, "r153": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6132-108592" }, "r154": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6143-108592" }, "r155": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "275", "URI": "http://asc.fasb.org/topic&trid=2134479" }, "r156": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599" }, "r157": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599" }, "r158": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599" }, "r159": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(g)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599" }, "r16": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(30)(a)(3))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r160": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(h)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599" }, "r161": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599" }, "r162": { "Name": "Accounting Standards Codification", "Paragraph": "30", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599" }, "r163": { "Name": "Accounting Standards Codification", "Paragraph": "30", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599" }, "r164": { "Name": "Accounting Standards Codification", "Paragraph": "30", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599" }, "r165": { "Name": "Accounting Standards Codification", "Paragraph": "30", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599" }, "r166": { "Name": "Accounting Standards Codification", "Paragraph": "31", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8924-108599" }, "r167": { "Name": "Accounting Standards Codification", "Paragraph": "32", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599" }, "r168": { "Name": "Accounting Standards Codification", "Paragraph": "32", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599" }, "r169": { "Name": "Accounting Standards Codification", "Paragraph": "32", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599" }, "r17": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(30)(a)(4))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r170": { "Name": "Accounting Standards Codification", "Paragraph": "32", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599" }, "r171": { "Name": "Accounting Standards Codification", "Paragraph": "32", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(f)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599" }, "r172": { "Name": "Accounting Standards Codification", "Paragraph": "40", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e9031-108599" }, "r173": { "Name": "Accounting Standards Codification", "Paragraph": "41", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e9038-108599" }, "r174": { "Name": "Accounting Standards Codification", "Paragraph": "42", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e9054-108599" }, "r175": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=124259787&loc=d3e4647-111522" }, "r176": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=124259787&loc=d3e4428-111522" }, "r177": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=124259787&loc=d3e4437-111522" }, "r178": { "Name": "Accounting Standards Codification", "Paragraph": "11B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524" }, "r179": { "Name": "Accounting Standards Codification", "Paragraph": "11B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524" }, "r18": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(30))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r180": { "Name": "Accounting Standards Codification", "Paragraph": "11B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524" }, "r181": { "Name": "Accounting Standards Codification", "Paragraph": "11B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(2)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524" }, "r182": { "Name": "Accounting Standards Codification", "Paragraph": "11B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(4)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524" }, "r183": { "Name": "Accounting Standards Codification", "Paragraph": "11B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(g)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524" }, "r184": { "Name": "Accounting Standards Codification", "Paragraph": "11B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(h)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524" }, "r185": { "Name": "Accounting Standards Codification", "Paragraph": "11B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524" }, "r186": { "Name": "Accounting Standards Codification", "Paragraph": "14A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=123577603&loc=SL6953550-111524" }, "r187": { "Name": "Accounting Standards Codification", "Paragraph": "14A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=123577603&loc=SL6953550-111524" }, "r188": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(3)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=123577603&loc=d3e5212-111524" }, "r189": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(4)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=123577603&loc=d3e5212-111524" }, "r19": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(31))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r190": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b,d)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=123577603&loc=d3e5212-111524" }, "r191": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b,d,e)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=123577603&loc=d3e5212-111524" }, "r192": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=123577603&loc=d3e5212-111524" }, "r193": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(3)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=123577603&loc=d3e5212-111524" }, "r194": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=123577603&loc=d3e5212-111524" }, "r195": { "Name": "Accounting Standards Codification", "Paragraph": "17", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=123577603&loc=d3e5258-111524" }, "r196": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=123577603&loc=d3e5033-111524" }, "r197": { "Name": "Accounting Standards Codification", "Paragraph": "29", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=123577603&loc=SL6953659-111524" }, "r198": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=123577603&loc=d3e5066-111524" }, "r199": { "Name": "Accounting Standards Codification", "Paragraph": "33", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524" }, "r2": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "205", "URI": "http://asc.fasb.org/extlink&oid=109222650&loc=SL51721683-107760" }, "r20": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(32))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r200": { "Name": "Accounting Standards Codification", "Paragraph": "34", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(2)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=123577603&loc=SL6953682-111524" }, "r201": { "Name": "Accounting Standards Codification", "Paragraph": "35", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=123577603&loc=SL49126937-111524" }, "r202": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=123577603&loc=d3e5074-111524" }, "r203": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=123577603&loc=d3e5086-111524" }, "r204": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=123577603&loc=d3e5093-111524" }, "r205": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=123577603&loc=d3e5111-111524" }, "r206": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=123577603&loc=d3e5111-111524" }, "r207": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=123577603&loc=d3e5111-111524" }, "r208": { "Name": "Accounting Standards Codification", "Paragraph": "7A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=123577603&loc=SL6953401-111524" }, "r209": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=123577603&loc=d3e5144-111524" }, "r21": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.12)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r210": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 4.E)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=122038336&loc=d3e74512-122707" }, "r211": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 6.L.1)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=122038336&loc=d3e74567-122707" }, "r212": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/subtopic&trid=2196772" }, "r213": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "35", "SubTopic": "20", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=124402152&loc=d3e8622-111531" }, "r214": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=6378536&loc=d3e10092-111533" }, "r215": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=84159169&loc=d3e10133-111534" }, "r216": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=84159169&loc=d3e10133-111534" }, "r217": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=84159169&loc=d3e10149-111534" }, "r218": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=84159169&loc=d3e10152-111534" }, "r219": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=84159169&loc=d3e10178-111534" }, "r22": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.13(a))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r220": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(b)(1)(ii)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121614798&loc=d3e15032-111544" }, "r221": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "SubTopic": "30", "Topic": "310", "URI": "http://asc.fasb.org/subtopic&trid=2196854" }, "r222": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "40", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121585226&loc=d3e18794-111554" }, "r223": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "40", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121585226&loc=d3e18845-111554" }, "r224": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "SubTopic": "40", "Topic": "310", "URI": "http://asc.fasb.org/subtopic&trid=2196892" }, "r225": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "310", "URI": "http://asc.fasb.org/topic&trid=2196771" }, "r226": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=124260329&loc=d3e26610-111562" }, "r227": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=124260329&loc=d3e26853-111562" }, "r228": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27161-111563" }, "r229": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(aa)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27161-111563" }, "r23": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.13)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r230": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27161-111563" }, "r231": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27161-111563" }, "r232": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27161-111563" }, "r233": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27198-111563" }, "r234": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27198-111563" }, "r235": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27198-111563" }, "r236": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27198-111563" }, "r237": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27232-111563" }, "r238": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(aa)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27232-111563" }, "r239": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27232-111563" }, "r24": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.14)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r240": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27232-111563" }, "r241": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(f)(1)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27232-111563" }, "r242": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(f)(2)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27232-111563" }, "r243": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(f)(3)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27232-111563" }, "r244": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(f)(4)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27232-111563" }, "r245": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27232-111563" }, "r246": { "Name": "Accounting Standards Codification", "Paragraph": "5A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=SL120269820-111563" }, "r247": { "Name": "Accounting Standards Codification", "Paragraph": "5A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=SL120269820-111563" }, "r248": { "Name": "Accounting Standards Codification", "Paragraph": "5A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=SL120269820-111563" }, "r249": { "Name": "Accounting Standards Codification", "Paragraph": "5A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=SL120269820-111563" }, "r25": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.17)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r250": { "Name": "Accounting Standards Codification", "Paragraph": "5B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=SL120269825-111563" }, "r251": { "Name": "Accounting Standards Codification", "Paragraph": "5B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=SL120269825-111563" }, "r252": { "Name": "Accounting Standards Codification", "Paragraph": "5B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=SL120269825-111563" }, "r253": { "Name": "Accounting Standards Codification", "Paragraph": "5B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=SL120269825-111563" }, "r254": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(1)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27290-111563" }, "r255": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(2)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27290-111563" }, "r256": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)(3)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27290-111563" }, "r257": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27290-111563" }, "r258": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27337-111563" }, "r259": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27357-111563" }, "r26": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.19(b),22(b))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r260": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27357-111563" }, "r261": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "320", "URI": "http://asc.fasb.org/topic&trid=2196928" }, "r262": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "321", "URI": "http://asc.fasb.org/extlink&oid=123583765&loc=SL75117539-209714" }, "r263": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "321", "URI": "http://asc.fasb.org/extlink&oid=123583765&loc=SL75117539-209714" }, "r264": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "321", "URI": "http://asc.fasb.org/extlink&oid=123583765&loc=SL75117539-209714" }, "r265": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "323", "URI": "http://asc.fasb.org/extlink&oid=109237563&loc=d3e33749-111570" }, "r266": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(2)", "Topic": "323", "URI": "http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571" }, "r267": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "323", "URI": "http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571" }, "r268": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "35", "SubTopic": "30", "Topic": "325", "URI": "http://asc.fasb.org/extlink&oid=6384439&loc=d3e42048-111605" }, "r269": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=122640432&loc=SL121648383-210437" }, "r27": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.19-26)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r270": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446" }, "r271": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=124255953&loc=SL82919244-210447" }, "r272": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447" }, "r273": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447" }, "r274": { "Name": "Accounting Standards Codification", "Paragraph": "14", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=124255953&loc=SL82919253-210447" }, "r275": { "Name": "Accounting Standards Codification", "Paragraph": "16", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=124255953&loc=SL82919258-210447" }, "r276": { "Name": "Accounting Standards Codification", "Paragraph": "16", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=124255953&loc=SL82919258-210447" }, "r277": { "Name": "Accounting Standards Codification", "Paragraph": "16", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=124255953&loc=SL82919258-210447" }, "r278": { "Name": "Accounting Standards Codification", "Paragraph": "19", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=124255953&loc=SL82919265-210447" }, "r279": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=124255953&loc=SL82919230-210447" }, "r28": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.22(a)(1))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r280": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=124267575&loc=SL82921830-210448" }, "r281": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=124267575&loc=SL82921833-210448" }, "r282": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=124267575&loc=SL82921835-210448" }, "r283": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=124267575&loc=SL82921842-210448" }, "r284": { "Name": "Accounting Standards Codification", "Paragraph": "79", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=124267575&loc=SL82922352-210448" }, "r285": { "Name": "Accounting Standards Codification", "Paragraph": "80", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=124267575&loc=SL82922355-210448" }, "r286": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/subtopic&trid=82887181" }, "r287": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454" }, "r288": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)(1)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=124269663&loc=SL82922888-210455" }, "r289": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)(2)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=124269663&loc=SL82922888-210455" }, "r29": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.22(a)(2))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r290": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(b)(3)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=124269663&loc=SL82922888-210455" }, "r291": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=124269663&loc=SL82922888-210455" }, "r292": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=124269663&loc=SL82922890-210455" }, "r293": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=124269663&loc=SL82922895-210455" }, "r294": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=124269663&loc=SL82922900-210455" }, "r295": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "55", "SubTopic": "30", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121590138&loc=SL82922954-210456" }, "r296": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "SubTopic": "30", "Topic": "326", "URI": "http://asc.fasb.org/subtopic&trid=82887182" }, "r297": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266" }, "r298": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=120320667&loc=SL49117168-202975" }, "r299": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274" }, "r3": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(1))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r30": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.22)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r300": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274" }, "r301": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275" }, "r302": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(d)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275" }, "r303": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275" }, "r304": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "((a)(1),(b))", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275" }, "r305": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275" }, "r306": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)(1)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275" }, "r307": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)(2)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275" }, "r308": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(d)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275" }, "r309": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "360", "URI": "http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229" }, "r31": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.25)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r310": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "360", "URI": "http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229" }, "r311": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "360", "URI": "http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229" }, "r312": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "360", "URI": "http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229" }, "r313": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "360", "URI": "http://asc.fasb.org/topic&trid=2155823" }, "r314": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "440", "URI": "http://asc.fasb.org/extlink&oid=123406679&loc=d3e25336-109308" }, "r315": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "440", "URI": "http://asc.fasb.org/extlink&oid=123406679&loc=d3e25336-109308" }, "r316": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "440", "URI": "http://asc.fasb.org/topic&trid=2144648" }, "r317": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "450", "URI": "http://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349" }, "r318": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "450", "URI": "http://asc.fasb.org/extlink&oid=121557415&loc=d3e14615-108349" }, "r319": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "450", "URI": "http://asc.fasb.org/topic&trid=2127136" }, "r32": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.29-31)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r320": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "460", "URI": "http://asc.fasb.org/extlink&oid=124440162&loc=d3e12021-110248" }, "r321": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(4)", "Topic": "460", "URI": "http://asc.fasb.org/extlink&oid=124440162&loc=d3e12069-110248" }, "r322": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "460", "URI": "http://asc.fasb.org/extlink&oid=123368208&loc=d3e12565-110249" }, "r323": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "460", "URI": "http://asc.fasb.org/extlink&oid=123408193&loc=d3e12803-110250" }, "r324": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123465755&loc=d3e1835-112601" }, "r325": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123465755&loc=SL6230698-112601" }, "r326": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.13-01(a)(4)(i))", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756" }, "r327": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.13-01(a)(4)(ii))", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756" }, "r328": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.13-01(a)(4)(iii)(A))", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756" }, "r329": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.13-01(a)(4)(iii))", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756" }, "r33": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.3,4)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r330": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.13-01(a)(4)(iv))", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756" }, "r331": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.13-01(a)(5))", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756" }, "r332": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.13-02(a)(4)(i))", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756" }, "r333": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.13-02(a)(4)(iii)(A))", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756" }, "r334": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.13-02(a)(4)(iii)(B))", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756" }, "r335": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.13-02(a)(4)(iv))", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756" }, "r336": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.13-02(a)(5))", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756" }, "r337": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611" }, "r338": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611" }, "r339": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611" }, "r34": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.8)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r340": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611" }, "r341": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(e)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611" }, "r342": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(f)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611" }, "r343": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(g)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611" }, "r344": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(h)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611" }, "r345": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(i)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611" }, "r346": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611" }, "r347": { "Name": "Accounting Standards Codification", "Paragraph": "1C", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495334-112611" }, "r348": { "Name": "Accounting Standards Codification", "Paragraph": "1C", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495334-112611" }, "r349": { "Name": "Accounting Standards Codification", "Paragraph": "1C", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495334-112611" }, "r35": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312" }, "r350": { "Name": "Accounting Standards Codification", "Paragraph": "1D", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495340-112611" }, "r351": { "Name": "Accounting Standards Codification", "Paragraph": "1D", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495340-112611" }, "r352": { "Name": "Accounting Standards Codification", "Paragraph": "1D", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495340-112611" }, "r353": { "Name": "Accounting Standards Codification", "Paragraph": "1E", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495348-112611" }, "r354": { "Name": "Accounting Standards Codification", "Paragraph": "1E", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495348-112611" }, "r355": { "Name": "Accounting Standards Codification", "Paragraph": "1E", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495348-112611" }, "r356": { "Name": "Accounting Standards Codification", "Paragraph": "1E", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495348-112611" }, "r357": { "Name": "Accounting Standards Codification", "Paragraph": "1F", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495355-112611" }, "r358": { "Name": "Accounting Standards Codification", "Paragraph": "1F", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495355-112611" }, "r359": { "Name": "Accounting Standards Codification", "Paragraph": "1F", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(1)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495355-112611" }, "r36": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313" }, "r360": { "Name": "Accounting Standards Codification", "Paragraph": "1F", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(2)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495355-112611" }, "r361": { "Name": "Accounting Standards Codification", "Paragraph": "1I", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495371-112611" }, "r362": { "Name": "Accounting Standards Codification", "Paragraph": "1I", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495371-112611" }, "r363": { "Name": "Accounting Standards Codification", "Paragraph": "1I", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495371-112611" }, "r364": { "Name": "Accounting Standards Codification", "Paragraph": "1I", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495371-112611" }, "r365": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466204&loc=SL6036836-161870" }, "r366": { "Name": "Accounting Standards Codification", "Paragraph": "69B", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466577&loc=SL123495735-112612" }, "r367": { "Name": "Accounting Standards Codification", "Paragraph": "69C", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466577&loc=SL123495737-112612" }, "r368": { "Name": "Accounting Standards Codification", "Paragraph": "69E", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466577&loc=SL123495743-112612" }, "r369": { "Name": "Accounting Standards Codification", "Paragraph": "69F", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466577&loc=SL123495745-112612" }, "r37": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=99393222&loc=SL20226052-175313" }, "r370": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "470", "URI": "http://asc.fasb.org/topic&trid=2208564" }, "r371": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644" }, "r372": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644" }, "r373": { "Name": "Accounting Standards Codification", "Paragraph": "18", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496189-112644" }, "r374": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=d3e21463-112644" }, "r375": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.3-04)", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770" }, "r376": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130551-203045" }, "r377": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045" }, "r378": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045" }, "r379": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045" }, "r38": { "Name": "Accounting Standards Codification", "Paragraph": "10A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=SL7669646-108580" }, "r380": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045" }, "r381": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045" }, "r382": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)(2)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130556-203045" }, "r383": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130558-203045" }, "r384": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130543-203045" }, "r385": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130545-203045" }, "r386": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130550-203045" }, "r387": { "Name": "Accounting Standards Codification", "Paragraph": "91", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=123410239&loc=SL49130690-203046-203046" }, "r388": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "606", "URI": "http://asc.fasb.org/topic&trid=49130388" }, "r389": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "15", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "712", "URI": "http://asc.fasb.org/extlink&oid=6410066&loc=d3e79218-111664" }, "r39": { "Name": "Accounting Standards Codification", "Paragraph": "10A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(f)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=SL7669646-108580" }, "r390": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "15", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "712", "URI": "http://asc.fasb.org/extlink&oid=6410066&loc=d3e79218-111664" }, "r391": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123453770&loc=d3e1703-114919" }, "r392": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r393": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)(1)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r394": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)(10)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r395": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)(2)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r396": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)(3)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r397": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)(4)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r398": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)(5)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r399": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)(6)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r4": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(13))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r40": { "Name": "Accounting Standards Codification", "Paragraph": "10A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(h)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=SL7669646-108580" }, "r400": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)(7)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r401": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)(8)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r402": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)(9)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r403": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r404": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(1)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r405": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(2)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r406": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(3)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r407": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(4)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r408": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(5)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r409": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(6)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r41": { "Name": "Accounting Standards Codification", "Paragraph": "10A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=SL7669646-108580" }, "r410": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(7)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r411": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(8)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r412": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r413": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)(i)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r414": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)(ii)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r415": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)(iii)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r416": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)(iv)(01)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r417": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)(iv)(02)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r418": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)(iv)(02)(A)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r419": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)(iv)(02)(B)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r42": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=d3e637-108580" }, "r420": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)(iv)(02)(C)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r421": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)(iv)(03)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r422": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(e)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r423": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(f)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r424": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(g)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r425": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(h)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r426": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(h)(1)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r427": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(h)(2)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r428": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(h)(3)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r429": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(h)(4)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r43": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=d3e640-108580" }, "r430": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(h)(5)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r431": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(h)(6)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r432": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(h)(7)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r433": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(i)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r434": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(j)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r435": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(k)(1)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r436": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(k)(3)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r437": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(k)(4)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r438": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(l)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r439": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(n)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r44": { "Name": "Accounting Standards Codification", "Paragraph": "14", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=d3e681-108580" }, "r440": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(o)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r441": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(p)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r442": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(q)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r443": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(r)(1)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r444": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(r)(2)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r445": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r446": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e2410-114920" }, "r447": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e2709-114920" }, "r448": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)(1)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e2709-114920" }, "r449": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)(2)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e2709-114920" }, "r45": { "Name": "Accounting Standards Codification", "Paragraph": "14A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=SL7669686-108580" }, "r450": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)(3)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e2709-114920" }, "r451": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)(4)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e2709-114920" }, "r452": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)(5)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e2709-114920" }, "r453": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)(6)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e2709-114920" }, "r454": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)(7)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e2709-114920" }, "r455": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e2709-114920" }, "r456": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e2919-114920" }, "r457": { "Name": "Accounting Standards Codification", "Paragraph": "17", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921" }, "r458": { "Name": "Accounting Standards Codification", "Paragraph": "18", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123450688&loc=d3e4587-114921" }, "r459": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "20", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=21916913&loc=d3e273930-122802" }, "r46": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=d3e689-108580" }, "r460": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=6412939&loc=d3e15145-114933" }, "r461": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "60", "Subparagraph": "(c)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=6414203&loc=d3e39689-114964" }, "r462": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "70", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942" }, "r463": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "35", "SubTopic": "80", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=29639808&loc=d3e29008-114946" }, "r464": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "50", "SubTopic": "80", "Subparagraph": "(a)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=65877416&loc=SL14450702-114947" }, "r465": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "50", "SubTopic": "80", "Subparagraph": "(b)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=65877416&loc=SL14450702-114947" }, "r466": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "50", "SubTopic": "80", "Subparagraph": "(c)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=65877416&loc=SL14450702-114947" }, "r467": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "50", "SubTopic": "80", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=65877416&loc=SL14450702-114947" }, "r468": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "80", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=65877416&loc=d3e29149-114947" }, "r469": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "80", "Subparagraph": "(d)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=65877416&loc=SL14450657-114947" }, "r47": { "Name": "Accounting Standards Codification", "Paragraph": "17A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=SL34724391-108580" }, "r470": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "80", "Subparagraph": "(f)(3)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=65877416&loc=SL14450657-114947" }, "r471": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "80", "Subparagraph": "(a)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=65877416&loc=SL14450673-114947" }, "r472": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "80", "Subparagraph": "(b)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=65877416&loc=SL14450673-114947" }, "r473": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "80", "Subparagraph": "(c)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=65877416&loc=SL14450673-114947" }, "r474": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "80", "Subparagraph": "(b)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=65877416&loc=SL14450691-114947" }, "r475": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "55", "SubTopic": "80", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=35742348&loc=SL14450788-114948" }, "r476": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "715", "URI": "http://asc.fasb.org/topic&trid=2235017" }, "r477": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "35", "SubTopic": "10", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=123468992&loc=d3e4534-113899" }, "r478": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901" }, "r479": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901" }, "r48": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=SL7669619-108580" }, "r480": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901" }, "r481": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(1)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r482": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a),(g)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r483": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b),(f)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r484": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r485": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)(iv)(3)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r486": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(2)(i)-(ii)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r487": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(2)(iii)(1)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r488": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(2)(iii)(2)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r489": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(2)(iii)(3)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r49": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=SL7669619-108580" }, "r490": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(h)(1)(i)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r491": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(i)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r492": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r493": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333" }, "r494": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(f)(1)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333" }, "r495": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(f)(2)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333" }, "r496": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(g)(2)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333" }, "r497": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 14.F)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=122041274&loc=d3e301413-122809" }, "r498": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=122142933&loc=d3e11149-113907" }, "r499": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=122142933&loc=d3e11178-113907" }, "r5": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(14))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r50": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=SL7669619-108580" }, "r500": { "Name": "Accounting Standards Codification", "Paragraph": "24", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=122142933&loc=d3e11374-113907" }, "r501": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "718", "URI": "http://asc.fasb.org/topic&trid=2228938" }, "r502": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "35", "Subparagraph": "(a)", "Topic": "720", "URI": "http://asc.fasb.org/extlink&oid=6420018&loc=d3e36677-107848" }, "r503": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "35", "Subparagraph": "(b)", "Topic": "720", "URI": "http://asc.fasb.org/extlink&oid=6420018&loc=d3e36677-107848" }, "r504": { "Name": "Accounting Standards Codification", "Paragraph": "25", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=123427490&loc=d3e32247-109318" }, "r505": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=123427490&loc=d3e32280-109318" }, "r506": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32672-109319" }, "r507": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319" }, "r508": { "Name": "Accounting Standards Codification", "Paragraph": "14", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32705-109319" }, "r509": { "Name": "Accounting Standards Codification", "Paragraph": "17", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32809-109319" }, "r51": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=SL7669625-108580" }, "r510": { "Name": "Accounting Standards Codification", "Paragraph": "19", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32840-109319" }, "r511": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32537-109319" }, "r512": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32537-109319" }, "r513": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32537-109319" }, "r514": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32847-109319" }, "r515": { "Name": "Accounting Standards Codification", "Paragraph": "21", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32857-109319" }, "r516": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32559-109319" }, "r517": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32621-109319" }, "r518": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32632-109319" }, "r519": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32639-109319" }, "r52": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=SL7669625-108580" }, "r520": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32639-109319" }, "r521": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32639-109319" }, "r522": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(d)(2)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=123459177&loc=SL121830611-158277" }, "r523": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(d)(3)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=123459177&loc=SL121830611-158277" }, "r524": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB TOPIC 6.I.5.Q1)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=122134291&loc=d3e330036-122817" }, "r525": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB TOPIC 6.I.7)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=122134291&loc=d3e330036-122817" }, "r526": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 6.I.7)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=122134291&loc=d3e330036-122817" }, "r527": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 6.I.Fact.1)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=122134291&loc=d3e330036-122817" }, "r528": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 6.I.Fact.2)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=122134291&loc=d3e330036-122817" }, "r529": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 11.C)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=122134291&loc=d3e330215-122817" }, "r53": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=d3e557-108580" }, "r530": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=123586238&loc=d3e38679-109324" }, "r531": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "270", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=6424409&loc=d3e44925-109338" }, "r532": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=6424122&loc=d3e41874-109331" }, "r533": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "740", "URI": "http://asc.fasb.org/topic&trid=2144680" }, "r534": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "05", "SubTopic": "10", "Subparagraph": "(a)-(d)", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=6909625&loc=d3e227-128457" }, "r535": { "Name": "Accounting Standards Codification", "Paragraph": "23", "Publisher": "FASB", "Section": "25", "SubTopic": "10", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=123586518&loc=d3e1043-128460" }, "r536": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(h)(2)", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463" }, "r537": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(h)(3)", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463" }, "r538": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463" }, "r539": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=79982066&loc=d3e1486-128463" }, "r54": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124431353&loc=SL116659661-227067" }, "r540": { "Name": "Accounting Standards Codification", "Paragraph": "37", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=123455525&loc=d3e2207-128464" }, "r541": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=123413009&loc=d3e4845-128472" }, "r542": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "30", "SubTopic": "30", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=116859721&loc=d3e6578-128477" }, "r543": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "30", "SubTopic": "30", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=116859721&loc=d3e6613-128477" }, "r544": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(b)", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479" }, "r545": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(b)(1)", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479" }, "r546": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(b)(4)", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479" }, "r547": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "25", "SubTopic": "50", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=123385561&loc=d3e9135-128495" }, "r548": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "30", "SubTopic": "50", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=123362884&loc=d3e9212-128498" }, "r549": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "30", "SubTopic": "50", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=123362884&loc=d3e9215-128498" }, "r55": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124431353&loc=SL124442407-227067" }, "r550": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "805", "URI": "http://asc.fasb.org/topic&trid=2303972" }, "r551": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "15", "SubTopic": "10", "Subparagraph": "(f)(2)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=116873149&loc=d3e923-111674" }, "r552": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=123454820&loc=d3e5283-111683" }, "r553": { "Name": "Accounting Standards Codification", "Paragraph": "19", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=123454820&loc=SL4569616-111683" }, "r554": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=123454820&loc=SL4569643-111683" }, "r555": { "Name": "Accounting Standards Codification", "Paragraph": "25", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=116870748&loc=SL6758485-165988" }, "r556": { "Name": "Accounting Standards Codification", "Paragraph": "25", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=116870748&loc=SL6758485-165988" }, "r557": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=d3e5614-111684" }, "r558": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(3)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684" }, "r559": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c),(3)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684" }, "r56": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124431353&loc=SL124442411-227067" }, "r560": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(bb)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=123419778&loc=d3e5710-111685" }, "r561": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=123419778&loc=d3e5710-111685" }, "r562": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "810", "URI": "http://asc.fasb.org/topic&trid=2197479" }, "r563": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=125515794&loc=SL5579240-113959" }, "r564": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959" }, "r565": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959" }, "r566": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=125515794&loc=SL5580258-113959" }, "r567": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=125515794&loc=d3e41620-113959" }, "r568": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=125515794&loc=d3e41638-113959" }, "r569": { "Name": "Accounting Standards Codification", "Paragraph": "4A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=125515794&loc=SL5618551-113959" }, "r57": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124431353&loc=SL124452729-227067" }, "r570": { "Name": "Accounting Standards Codification", "Paragraph": "4A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=125515794&loc=SL5618551-113959" }, "r571": { "Name": "Accounting Standards Codification", "Paragraph": "4B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=125515794&loc=SL5624163-113959" }, "r572": { "Name": "Accounting Standards Codification", "Paragraph": "4B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=125515794&loc=SL5624163-113959" }, "r573": { "Name": "Accounting Standards Codification", "Paragraph": "4B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=125515794&loc=SL5624163-113959" }, "r574": { "Name": "Accounting Standards Codification", "Paragraph": "4C", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=125515794&loc=SL5624171-113959" }, "r575": { "Name": "Accounting Standards Codification", "Paragraph": "4D", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(1)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=125515794&loc=SL5624177-113959" }, "r576": { "Name": "Accounting Standards Codification", "Paragraph": "4D", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=125515794&loc=SL5624177-113959" }, "r577": { "Name": "Accounting Standards Codification", "Paragraph": "4E", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=125515794&loc=SL5624181-113959" }, "r578": { "Name": "Accounting Standards Codification", "Paragraph": "4K", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(4)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=125515794&loc=SL5708775-113959" }, "r579": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=125515794&loc=d3e41641-113959" }, "r58": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124507222&loc=d3e1436-108581" }, "r580": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=125515794&loc=d3e41675-113959" }, "r581": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=125515794&loc=d3e41678-113959" }, "r582": { "Name": "Accounting Standards Codification", "Paragraph": "182", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=123421605&loc=SL5629052-113961" }, "r583": { "Name": "Accounting Standards Codification", "Paragraph": "6A", "Publisher": "FASB", "Section": "25", "SubTopic": "20", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=124256753&loc=SL5864739-113975" }, "r584": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "40", "Subparagraph": "(f)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=123477628&loc=d3e90205-114008" }, "r585": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(e)(3)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011" }, "r586": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(e)(4)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011" }, "r587": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(f)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011" }, "r588": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "815", "URI": "http://asc.fasb.org/topic&trid=2229140" }, "r589": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258" }, "r59": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03(1)(e))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868656-224227" }, "r590": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258" }, "r591": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(bbb)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258" }, "r592": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(bbb)(1)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258" }, "r593": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(bbb)(2)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258" }, "r594": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258" }, "r595": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(h)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258" }, "r596": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258" }, "r597": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=123874694&loc=d3e19279-110258" }, "r598": { "Name": "Accounting Standards Codification", "Paragraph": "6A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=123874694&loc=SL6742756-110258" }, "r599": { "Name": "Accounting Standards Codification", "Paragraph": "6A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=123874694&loc=SL6742756-110258" }, "r6": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(17))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r60": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(210.5-03(11))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227" }, "r600": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=123594809&loc=d3e13220-108610" }, "r601": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=123594938&loc=d3e13433-108611" }, "r602": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=123594938&loc=d3e13467-108611" }, "r603": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=123594938&loc=d3e13476-108611" }, "r604": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(f)", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=123596393&loc=d3e14064-108612" }, "r605": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "230", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=123444420&loc=d3e33268-110906" }, "r606": { "Name": "Accounting Standards Codification", "Paragraph": "17", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32136-110900" }, "r607": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Subparagraph": "(a)", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900" }, "r608": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Subparagraph": "(b)", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900" }, "r609": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Subparagraph": "(c)", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900" }, "r61": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03(1))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227" }, "r610": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Subparagraph": "(d)", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900" }, "r611": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900" }, "r612": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901" }, "r613": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "835", "URI": "http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391" }, "r614": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "835", "URI": "http://asc.fasb.org/extlink&oid=124435984&loc=d3e28541-108399" }, "r615": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "835", "URI": "http://asc.fasb.org/extlink&oid=124435984&loc=d3e28551-108399" }, "r616": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "835", "URI": "http://asc.fasb.org/extlink&oid=124435984&loc=d3e28555-108399" }, "r617": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "835", "URI": "http://asc.fasb.org/extlink&oid=124429444&loc=SL124452920-239629" }, "r618": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "55", "SubTopic": "30", "Topic": "835", "URI": "http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400" }, "r619": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "840", "URI": "http://asc.fasb.org/extlink&oid=123386454&loc=d3e45280-112737" }, "r62": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03(10))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227" }, "r620": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)(4)", "Topic": "840", "URI": "http://asc.fasb.org/extlink&oid=123392090&loc=d3e45377-112738" }, "r621": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977" }, "r622": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977" }, "r623": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=123391704&loc=SL77918643-209977" }, "r624": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=123408670&loc=SL77918673-209980" }, "r625": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980" }, "r626": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980" }, "r627": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(g)(1)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980" }, "r628": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(g)(3)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980" }, "r629": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(g)(4)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980" }, "r63": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03(12))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227" }, "r630": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980" }, "r631": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980" }, "r632": { "Name": "Accounting Standards Codification", "Paragraph": "53", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=123414884&loc=SL77918982-209971" }, "r633": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "SubTopic": "20", "Topic": "842", "URI": "http://asc.fasb.org/subtopic&trid=77888251" }, "r634": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "850", "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864" }, "r635": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "850", "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864" }, "r636": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "850", "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864" }, "r637": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "850", "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39599-107864" }, "r638": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "850", "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39691-107864" }, "r639": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "850", "URI": "http://asc.fasb.org/topic&trid=2122745" }, "r64": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03(20))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227" }, "r640": { "Name": "Accounting Standards Codification", "Paragraph": "14", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "852", "URI": "http://asc.fasb.org/extlink&oid=124437977&loc=d3e55792-112764" }, "r641": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "852", "URI": "http://asc.fasb.org/extlink&oid=124433192&loc=SL2890621-112765" }, "r642": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "852", "URI": "http://asc.fasb.org/extlink&oid=124433192&loc=SL2890621-112765" }, "r643": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Topic": "852", "URI": "http://asc.fasb.org/extlink&oid=84165509&loc=d3e56426-112766" }, "r644": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "855", "URI": "http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662" }, "r645": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "855", "URI": "http://asc.fasb.org/extlink&oid=6842918&loc=SL6314020-165662" }, "r646": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "855", "URI": "http://asc.fasb.org/topic&trid=2122774" }, "r647": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=109221007&loc=SL6226446-111709" }, "r648": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(2)(i)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719" }, "r649": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(2)(ii)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719" }, "r65": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03(21))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227" }, "r650": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(3)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719" }, "r651": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(bb)(1)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719" }, "r652": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(bb)(2)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719" }, "r653": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(bb)(3)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719" }, "r654": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)(1)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719" }, "r655": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)(2)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719" }, "r656": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)(3)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719" }, "r657": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719" }, "r658": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719" }, "r659": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(1)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719" }, "r66": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03(24))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227" }, "r660": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(2)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719" }, "r661": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(3)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719" }, "r662": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719" }, "r663": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "25", "SubTopic": "30", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=109249708&loc=d3e113105-111724" }, "r664": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=66007379&loc=d3e113888-111728" }, "r665": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(b)(1)(i)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=109249958&loc=SL6224234-111729" }, "r666": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=109249958&loc=SL34722452-111729" }, "r667": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(1)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122625-111746" }, "r668": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(2)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122625-111746" }, "r669": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(3)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122625-111746" }, "r67": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03(25))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227" }, "r670": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(4)(i)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122625-111746" }, "r671": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(1)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122739-111746" }, "r672": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(2)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122739-111746" }, "r673": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(3)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122739-111746" }, "r674": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(4)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122739-111746" }, "r675": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(5)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122739-111746" }, "r676": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(6)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122739-111746" }, "r677": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(7)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122739-111746" }, "r678": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(b)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122739-111746" }, "r679": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(e)(1)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122739-111746" }, "r68": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03(7)(c))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227" }, "r680": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(e)(2)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122739-111746" }, "r681": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(e)(3)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122739-111746" }, "r682": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "910", "URI": "http://asc.fasb.org/extlink&oid=123353855&loc=SL119991595-234733" }, "r683": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "350", "Subparagraph": "(a)", "Topic": "920", "URI": "http://asc.fasb.org/extlink&oid=120155617&loc=SL120155628-234783" }, "r684": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "350", "Subparagraph": "(b)", "Topic": "920", "URI": "http://asc.fasb.org/extlink&oid=120155617&loc=SL120155628-234783" }, "r685": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "350", "Subparagraph": "(a)", "Topic": "920", "URI": "http://asc.fasb.org/extlink&oid=120155617&loc=SL120155638-234783" }, "r686": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 11.L)", "Topic": "924", "URI": "http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856" }, "r687": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "926", "URI": "http://asc.fasb.org/extlink&oid=120154696&loc=d3e54445-107959" }, "r688": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "340", "Topic": "928", "URI": "http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004" }, "r689": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "25", "SubTopic": "20", "Topic": "940", "URI": "http://asc.fasb.org/extlink&oid=123384075&loc=d3e41242-110953" }, "r69": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03(8))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227" }, "r690": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "SubTopic": "320", "Topic": "940", "URI": "http://asc.fasb.org/subtopic&trid=2176304" }, "r691": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "45", "SubTopic": "210", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=117340910&loc=d3e59706-112781" }, "r692": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(1))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r693": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(10)(1))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r694": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(10))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r695": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(11))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r696": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(13))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r697": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(15)(2))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r698": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(16))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r699": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(23))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r7": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(19))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r70": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03(9)(a))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227" }, "r700": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(6))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r701": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(7)(e)(1)(i))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r702": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03.10(4))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r703": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03.12)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r704": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03.15)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r705": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03.16)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r706": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03.17)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r707": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03.2)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r708": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03.7(e))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r709": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03.7)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r71": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03(b)(4))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227" }, "r710": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04(13)(f))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r711": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04(13))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r712": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04(15))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r713": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04(22))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r714": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04(23))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r715": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04(26))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r716": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04(27))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r717": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04.1)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r718": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04.1-5)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r719": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04.10)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r72": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227" }, "r720": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04.11)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r721": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04.12)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r722": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04.13(h))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r723": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04.13)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r724": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04.14(b))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r725": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04.14(d))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r726": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04.14)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r727": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04.2)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r728": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04.4)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r729": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04.6)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r73": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03.3)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227" }, "r730": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04.8)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r731": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04.9)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r732": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "230", "Subparagraph": "(b)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=123398031&loc=d3e60009-112784" }, "r733": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "230", "Subparagraph": "(c)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=123398031&loc=d3e60009-112784" }, "r734": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "235", "Subparagraph": "(SX 210.9-05(b)(2))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399901&loc=d3e537907-122884" }, "r735": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "320", "Subparagraph": "(b)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=123599081&loc=d3e62557-112803" }, "r736": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "320", "Subparagraph": "(a)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=123599081&loc=d3e62586-112803" }, "r737": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "320", "Subparagraph": "(b)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=123599081&loc=d3e62586-112803" }, "r738": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "320", "Subparagraph": "(c)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=123599081&loc=d3e62586-112803" }, "r739": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "320", "Subparagraph": "(d)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=123599081&loc=d3e62586-112803" }, "r74": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03.4)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227" }, "r740": { "Name": "Accounting Standards Codification", "Paragraph": "3A", "Publisher": "FASB", "Section": "50", "SubTopic": "320", "Subparagraph": "(a)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=123599081&loc=SL120269850-112803" }, "r741": { "Name": "Accounting Standards Codification", "Paragraph": "3A", "Publisher": "FASB", "Section": "50", "SubTopic": "320", "Subparagraph": "(b)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=123599081&loc=SL120269850-112803" }, "r742": { "Name": "Accounting Standards Codification", "Paragraph": "3A", "Publisher": "FASB", "Section": "50", "SubTopic": "320", "Subparagraph": "(c)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=123599081&loc=SL120269850-112803" }, "r743": { "Name": "Accounting Standards Codification", "Paragraph": "3A", "Publisher": "FASB", "Section": "50", "SubTopic": "320", "Subparagraph": "(d)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=123599081&loc=SL120269850-112803" }, "r744": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "SubTopic": "320", "Topic": "942", "URI": "http://asc.fasb.org/subtopic&trid=2209399" }, "r745": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "325", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=123599499&loc=d3e63345-112809" }, "r746": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "360", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=124429447&loc=SL124453093-239630" }, "r747": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "405", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=116652737&loc=d3e64164-112818" }, "r748": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "470", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822" }, "r749": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "470", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=123599511&loc=d3e64684-112823" }, "r75": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03.6)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227" }, "r750": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "505", "Subparagraph": "(a)(1)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826" }, "r751": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "505", "Subparagraph": "(a)(2)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826" }, "r752": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "505", "Subparagraph": "(b)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826" }, "r753": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "505", "Subparagraph": "(c)(1)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826" }, "r754": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "505", "Subparagraph": "(c)(2)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826" }, "r755": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "505", "Subparagraph": "(e)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826" }, "r756": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "50", "SubTopic": "505", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=117337116&loc=SL5958569-112826" }, "r757": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "50", "SubTopic": "505", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=117337116&loc=SL5958570-112826" }, "r758": { "Name": "Accounting Standards Codification", "Paragraph": "1D", "Publisher": "FASB", "Section": "50", "SubTopic": "505", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=117337116&loc=SL5958573-112826" }, "r759": { "Name": "Accounting Standards Codification", "Paragraph": "1F", "Publisher": "FASB", "Section": "50", "SubTopic": "505", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=117337116&loc=SL5958575-112826" }, "r76": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03.7(a))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227" }, "r760": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "825", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=123345438&loc=d3e61044-112788" }, "r761": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(15)(b)(2))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r762": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(16)(a))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r763": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(16))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r764": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(10))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r765": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(12))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r766": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(16))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r767": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(23)(a)(3))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r768": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(23)(a)(4))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r769": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(25))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r77": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03.8)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227" }, "r770": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(4))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r771": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(8))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r772": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03.(a),19)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r773": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03.16)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r774": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.7-04(10))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263" }, "r775": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.7-04(18))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263" }, "r776": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.7-04(19))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263" }, "r777": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.7-04(22))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263" }, "r778": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.7-04(23))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263" }, "r779": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.7-04(3)(b))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263" }, "r78": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "220", "URI": "http://asc.fasb.org/topic&trid=2134417" }, "r780": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.7-04(4))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263" }, "r781": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.7-04(8))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263" }, "r782": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.7-04(9))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263" }, "r783": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.7-04.3(a))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263" }, "r784": { "Name": "Accounting Standards Codification", "Paragraph": "4H", "Publisher": "FASB", "Section": "50", "SubTopic": "40", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=116884468&loc=SL65671331-158438" }, "r785": { "Name": "Accounting Standards Codification", "Paragraph": "7A", "Publisher": "FASB", "Section": "50", "SubTopic": "40", "Subparagraph": "(d)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=124506351&loc=SL117782755-158439" }, "r786": { "Name": "Accounting Standards Codification", "Paragraph": "13H", "Publisher": "FASB", "Section": "55", "SubTopic": "40", "Subparagraph": "(a)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=124504033&loc=SL117783719-158441" }, "r787": { "Name": "Accounting Standards Codification", "Paragraph": "29F", "Publisher": "FASB", "Section": "55", "SubTopic": "40", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=124504033&loc=SL117819544-158441" }, "r788": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(e)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641" }, "r789": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(f)(1)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641" }, "r79": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3151-108585" }, "r790": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(f)(2)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641" }, "r791": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(g)(2)(i)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641" }, "r792": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(g)(2)(ii)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641" }, "r793": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(h)(2)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641" }, "r794": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "80", "Subparagraph": "(e)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=124508989&loc=d3e19393-158473" }, "r795": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=66023616&loc=SL35737432-115832" }, "r796": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "45", "SubTopic": "220", "Subparagraph": "(k)", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=124433917&loc=SL114874205-224268" }, "r797": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.6-07.2(a),(b),(c),(d))", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=120401555&loc=SL114874292-224272" }, "r798": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "S99", "SubTopic": "320", "Subparagraph": "(SX 210.12-12B(Column B)(Footnote 1))", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=122147990&loc=d3e611197-123010" }, "r799": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "S99", "SubTopic": "320", "Subparagraph": "(SX 210.12-12B(Column B)(Footnote 6))", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=122147990&loc=d3e611197-123010" }, "r8": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(20))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r80": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3179-108585" }, "r800": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "S99", "SubTopic": "320", "Subparagraph": "(SX 210.12-12B(Column B)(Footnote 7))", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=122147990&loc=d3e611197-123010" }, "r801": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "S99", "SubTopic": "320", "Subparagraph": "(SX 210.12-12B(Column C)(Footnote 1))", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=122147990&loc=d3e611197-123010" }, "r802": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "S99", "SubTopic": "320", "Subparagraph": "(SX 210.12-12B(Column C)(Footnote 6))", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=122147990&loc=d3e611197-123010" }, "r803": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "S99", "SubTopic": "320", "Subparagraph": "(SX 210.12-12B(Column C)(Footnote 7))", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=122147990&loc=d3e611197-123010" }, "r804": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "S99", "SubTopic": "320", "Subparagraph": "(SX 210.12-12B(Column D)(Footnote 1))", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=122147990&loc=d3e611197-123010" }, "r805": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "S99", "SubTopic": "320", "Subparagraph": "(SX 210.12-12B(Column D)(Footnote 6))", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=122147990&loc=d3e611197-123010" }, "r806": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "S99", "SubTopic": "320", "Subparagraph": "(SX 210.12-12B(Column D)(Footnote 7))", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=122147990&loc=d3e611197-123010" }, "r807": { "Name": "Accounting Standards Codification", "Paragraph": "5D", "Publisher": "FASB", "Section": "S99", "SubTopic": "320", "Subparagraph": "(SX 210.12-13D(Column B)(Footnote 2))", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=122147990&loc=SL120429264-123010" }, "r808": { "Name": "Accounting Standards Codification", "Paragraph": "5D", "Publisher": "FASB", "Section": "S99", "SubTopic": "320", "Subparagraph": "(SX 210.12-13D(Column C)(Footnote 2))", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=122147990&loc=SL120429264-123010" }, "r809": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "S99", "SubTopic": "320", "Subparagraph": "(SX 210.12-15(Column A))", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=122147990&loc=d3e611379-123010" }, "r81": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3179-108585" }, "r810": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "S99", "SubTopic": "320", "Subparagraph": "(SX 210.12-15(Column B))", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=122147990&loc=d3e611379-123010" }, "r811": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "S99", "SubTopic": "320", "Subparagraph": "(SX 210.12-15(Column C))", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=122147990&loc=d3e611379-123010" }, "r812": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "S99", "SubTopic": "320", "Subparagraph": "(SX 210.12-15(Column D))", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=122147990&loc=d3e611379-123010" }, "r813": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "SubTopic": "320", "Topic": "946", "URI": "http://asc.fasb.org/subtopic&trid=2324412" }, "r814": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "310", "Topic": "948", "URI": "http://asc.fasb.org/extlink&oid=124265262&loc=d3e48678-111004" }, "r815": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "310", "Subparagraph": "(SX 210.12-29(Footnote 4))", "Topic": "948", "URI": "http://asc.fasb.org/extlink&oid=120402547&loc=d3e617274-123014" }, "r816": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "45", "SubTopic": "210", "Topic": "954", "URI": "http://asc.fasb.org/extlink&oid=120413173&loc=SL6242262-115580" }, "r817": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "210", "Topic": "954", "URI": "http://asc.fasb.org/extlink&oid=120413209&loc=SL6242269-115581" }, "r818": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "440", "Subparagraph": "(a)", "Topic": "954", "URI": "http://asc.fasb.org/extlink&oid=6491277&loc=d3e6429-115629" }, "r819": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "450", "Topic": "954", "URI": "http://asc.fasb.org/extlink&oid=6491354&loc=d3e6049-115624" }, "r82": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3179-108585" }, "r820": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "360", "Subparagraph": "(d)", "Topic": "958", "URI": "http://asc.fasb.org/extlink&oid=120429125&loc=d3e99779-112916" }, "r821": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "360", "Topic": "958", "URI": "http://asc.fasb.org/extlink&oid=120429125&loc=d3e99893-112916" }, "r822": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "360", "Topic": "958", "URI": "http://asc.fasb.org/extlink&oid=120429125&loc=SL120174063-112916" }, "r823": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "360", "Subparagraph": "(SX 210.12-28(Column B))", "Topic": "970", "URI": "http://asc.fasb.org/extlink&oid=120402810&loc=d3e638233-123024" }, "r824": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "360", "Subparagraph": "(SX 210.12-28(Column C))", "Topic": "970", "URI": "http://asc.fasb.org/extlink&oid=120402810&loc=d3e638233-123024" }, "r825": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "360", "Subparagraph": "(SX 210.12-28(Column D))", "Topic": "970", "URI": "http://asc.fasb.org/extlink&oid=120402810&loc=d3e638233-123024" }, "r826": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "360", "Subparagraph": "(SX 210.12-28(Column E))", "Topic": "970", "URI": "http://asc.fasb.org/extlink&oid=120402810&loc=d3e638233-123024" }, "r827": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "360", "Subparagraph": "(SX 210.12-28(Column F))", "Topic": "970", "URI": "http://asc.fasb.org/extlink&oid=120402810&loc=d3e638233-123024" }, "r828": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "360", "Subparagraph": "(SX 210.12-28(Column G))", "Topic": "970", "URI": "http://asc.fasb.org/extlink&oid=120402810&loc=d3e638233-123024" }, "r829": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "360", "Subparagraph": "(SX 210.12-28(Column H))", "Topic": "970", "URI": "http://asc.fasb.org/extlink&oid=120402810&loc=d3e638233-123024" }, "r83": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3213-108585" }, "r830": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "360", "Subparagraph": "(SX 210.12-28(Column I))", "Topic": "970", "URI": "http://asc.fasb.org/extlink&oid=120402810&loc=d3e638233-123024" }, "r831": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "360", "Subparagraph": "(SX 210.12-28(Footnote 2))", "Topic": "970", "URI": "http://asc.fasb.org/extlink&oid=120402810&loc=d3e638233-123024" }, "r832": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "360", "Subparagraph": "(SX 210.12-28(Footnote 4))", "Topic": "970", "URI": "http://asc.fasb.org/extlink&oid=120402810&loc=d3e638233-123024" }, "r833": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "310", "Subparagraph": "(c)", "Topic": "976", "URI": "http://asc.fasb.org/extlink&oid=6497875&loc=d3e22274-108663" }, "r834": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "310", "Subparagraph": "(b)", "Topic": "978", "URI": "http://asc.fasb.org/extlink&oid=123360121&loc=d3e27327-108691" }, "r835": { "Name": "Exchange Act", "Number": "240", "Publisher": "SEC", "Section": "12", "Subsection": "b" }, "r836": { "Name": "Exchange Act", "Number": "240", "Publisher": "SEC", "Section": "12", "Subsection": "b-2" }, "r837": { "Name": "Exchange Act", "Number": "240", "Publisher": "SEC", "Section": "12", "Subsection": "d1-1" }, "r838": { "Name": "Form 10-K", "Number": "249", "Publisher": "SEC", "Section": "310" }, "r839": { "Name": "Form 20-F", "Number": "249", "Publisher": "SEC", "Section": "220", "Subsection": "f" }, "r84": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3213-108585" }, "r840": { "Name": "Form 40-F", "Number": "249", "Publisher": "SEC", "Section": "240", "Subsection": "f" }, "r841": { "Name": "Forms 10-K, 10-Q, 20-F", "Number": "240", "Publisher": "SEC", "Section": "13", "Subsection": "a-1" }, "r842": { "Name": "Regulation S-K (SK)", "Number": "229", "Paragraph": "(a)", "Publisher": "SEC", "Section": "1402" }, "r843": { "Name": "Regulation S-K (SK)", "Number": "229", "Paragraph": "(b)", "Publisher": "SEC", "Section": "1402", "Subparagraph": "(1)" }, "r844": { "Name": "Regulation S-K (SK)", "Number": "229", "Paragraph": "(b)", "Publisher": "SEC", "Section": "1402", "Subparagraph": "(2)" }, "r845": { "Name": "Regulation S-K (SK)", "Number": "229", "Paragraph": "(b)", "Publisher": "SEC", "Section": "1402", "Subparagraph": "(3)" }, "r846": { "Name": "Regulation S-K (SK)", "Number": "229", "Paragraph": "(c)", "Publisher": "SEC", "Section": "1402", "Subparagraph": "(2)(i)" }, "r847": { "Name": "Regulation S-K (SK)", "Number": "229", "Paragraph": "(c)", "Publisher": "SEC", "Section": "1402", "Subparagraph": "(2)(ii)" }, "r848": { "Name": "Regulation S-K (SK)", "Number": "229", "Paragraph": "(c)", "Publisher": "SEC", "Section": "1402", "Subparagraph": "(2)(iii)" }, "r849": { "Name": "Regulation S-K (SK)", "Number": "229", "Paragraph": "(b)", "Publisher": "SEC", "Section": "1403" }, "r85": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3213-108585" }, "r850": { "Name": "Regulation S-K (SK)", "Number": "229", "Paragraph": "(a)", "Publisher": "SEC", "Section": "1404" }, "r851": { "Name": "Regulation S-K (SK)", "Number": "229", "Paragraph": "(b)", "Publisher": "SEC", "Section": "1404" }, "r852": { "Name": "Regulation S-K (SK)", "Number": "229", "Paragraph": "(a)", "Publisher": "SEC", "Section": "1405", "Subparagraph": "(1)" }, "r853": { "Name": "Regulation S-K (SK)", "Number": "229", "Paragraph": "(a)", "Publisher": "SEC", "Section": "1405", "Subparagraph": "(2)" }, "r854": { "Name": "Regulation S-K (SK)", "Number": "229", "Paragraph": "(a)", "Publisher": "SEC", "Section": "1405", "Subparagraph": "(3)" }, "r855": { "Name": "Regulation S-K (SK)", "Number": "229", "Paragraph": "(a)", "Publisher": "SEC", "Section": "1405", "Subparagraph": "(4)" }, "r856": { "Name": "Regulation S-K (SK)", "Number": "229", "Paragraph": "(c)", "Publisher": "SEC", "Section": "1405" }, "r857": { "Name": "Regulation S-K (SK)", "Number": "229", "Publisher": "SEC", "Section": "1406" }, "r858": { "Name": "Regulation S-K (SK)", "Number": "229", "Paragraph": "(e)", "Publisher": "SEC", "Section": "1406" }, "r859": { "Name": "Regulation S-T", "Number": "232", "Publisher": "SEC", "Section": "405" }, "r86": { "Name": "Accounting Standards Codification", "Paragraph": "14", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3255-108585" }, "r860": { "Name": "Regulation S-X (SX)", "Number": "210", "Publisher": "SEC", "Section": "11", "Subsection": "03" }, "r861": { "Footnote": "2", "Name": "Regulation S-X (SX)", "Number": "210", "Publisher": "SEC", "Section": "12", "Subsection": "28" }, "r862": { "Footnote": "4", "Name": "Regulation S-X (SX)", "Number": "210", "Publisher": "SEC", "Section": "12", "Subsection": "28" }, "r863": { "Footnote": "4", "Name": "Regulation S-X (SX)", "Number": "210", "Publisher": "SEC", "Section": "12", "Subsection": "29" }, "r864": { "Name": "Regulation S-X (SX)", "Number": "210", "Paragraph": "Column B", "Publisher": "SEC", "Section": "12", "Subsection": "28" }, "r865": { "Name": "Regulation S-X (SX)", "Number": "210", "Paragraph": "Column C", "Publisher": "SEC", "Section": "12", "Subsection": "28" }, "r866": { "Name": "Regulation S-X (SX)", "Number": "210", "Paragraph": "Column D", "Publisher": "SEC", "Section": "12", "Subsection": "28" }, "r867": { "Name": "Regulation S-X (SX)", "Number": "210", "Paragraph": "Column E", "Publisher": "SEC", "Section": "12", "Subsection": "28" }, "r868": { "Name": "Regulation S-X (SX)", "Number": "210", "Paragraph": "Column F", "Publisher": "SEC", "Section": "12", "Subsection": "28" }, "r869": { "Name": "Regulation S-X (SX)", "Number": "210", "Paragraph": "Column G", "Publisher": "SEC", "Section": "12", "Subsection": "28" }, "r87": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3291-108585" }, "r870": { "Name": "Regulation S-X (SX)", "Number": "210", "Paragraph": "Column H", "Publisher": "SEC", "Section": "12", "Subsection": "28" }, "r871": { "Name": "Regulation S-X (SX)", "Number": "210", "Paragraph": "Column I", "Publisher": "SEC", "Section": "12", "Subsection": "28" }, "r872": { "Name": "Regulation S-X (SX)", "Number": "210", "Paragraph": "(a)", "Publisher": "SEC", "Section": "13", "Subparagraph": "(4)(i)", "Subsection": "01" }, "r873": { "Name": "Regulation S-X (SX)", "Number": "210", "Paragraph": "(a)", "Publisher": "SEC", "Section": "13", "Subparagraph": "(4)(iv)", "Subsection": "01" }, "r874": { "Name": "Regulation S-X (SX)", "Number": "210", "Paragraph": "(a)", "Publisher": "SEC", "Section": "13", "Subparagraph": "(4)(iv)", "Subsection": "02" }, "r875": { "Name": "Regulation S-X (SX)", "Number": "210", "Paragraph": "i", "Publisher": "SEC", "Section": "3", "Subsection": "10" }, "r876": { "Name": "Securities Act", "Number": "230", "Publisher": "SEC", "Section": "405" }, "r877": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(a)(3)(iii)(03)", "Topic": "848" }, "r88": { "Name": "Accounting Standards Codification", "Paragraph": "16", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3337-108585" }, "r89": { "Name": "Accounting Standards Codification", "Paragraph": "17", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3367-108585" }, "r9": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(22))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r90": { "Name": "Accounting Standards Codification", "Paragraph": "21", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3461-108585" }, "r91": { "Name": "Accounting Standards Codification", "Paragraph": "24", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3521-108585" }, "r92": { "Name": "Accounting Standards Codification", "Paragraph": "25", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3536-108585" }, "r93": { "Name": "Accounting Standards Codification", "Paragraph": "25", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3536-108585" }, "r94": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585" }, "r95": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585" }, "r96": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585" }, "r97": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3044-108585" }, "r98": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123431023&loc=d3e4273-108586" }, "r99": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123431023&loc=d3e4297-108586" } }, "version": "2.1" }