{ "instance": { "sfbc-20200630.htm": { "axisCustom": 0, "axisStandard": 27, "contextCount": 500, "dts": { "calculationLink": { "local": [ "sfbc-20200630_cal.xml" ] }, "definitionLink": { "local": [ "sfbc-20200630_def.xml" ], "remote": [ "http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-eedm-def-2020-01-31.xml", "http://xbrl.fasb.org/srt/2020/elts/srt-eedm1-def-2020-01-31.xml" ] }, "inline": { "local": [ "sfbc-20200630.htm" ] }, "labelLink": { "local": [ "sfbc-20200630_lab.xml" ], "remote": [ "https://xbrl.sec.gov/dei/2019/dei-doc-2019-01-31.xml", "http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-doc-2020-01-31.xml" ] }, "presentationLink": { "local": [ "sfbc-20200630_pre.xml" ] }, "referenceLink": { "remote": [ "https://xbrl.sec.gov/dei/2019/dei-ref-2019-01-31.xml", "http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-ref-2020-01-31.xml" ] }, "schema": { "local": [ "sfbc-20200630.xsd" ], "remote": [ "http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd", "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/dtr/type/numeric-2009-12-16.xsd", "http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd", "http://www.xbrl.org/2005/xbrldt-2005.xsd", "http://www.xbrl.org/2006/ref-2006-02-27.xsd", "http://xbrl.fasb.org/srt/2020/elts/srt-types-2020-01-31.xsd", "http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd", "http://xbrl.fasb.org/us-gaap/2020/elts/us-roles-2020-01-31.xsd", "http://xbrl.fasb.org/srt/2020/elts/srt-roles-2020-01-31.xsd", "https://xbrl.sec.gov/country/2020/country-2020-01-31.xsd", "http://xbrl.fasb.org/us-gaap/2020/elts/us-types-2020-01-31.xsd", "https://xbrl.sec.gov/dei/2019/dei-2019-01-31.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/deprecated-2009-12-16.xsd", "http://www.xbrl.org/lrr/role/reference-2009-12-16.xsd", "http://xbrl.fasb.org/us-gaap/2020/elts/us-parts-codification-2020-01-31.xsd" ] } }, "elementCount": 592, "entityCount": 1, "hidden": { "http://fasb.org/us-gaap/2020-01-31": 3, "http://xbrl.sec.gov/dei/2019-01-31": 5, "total": 8 }, "keyCustom": 47, "keyStandard": 377, "memberCustom": 26, "memberStandard": 46, "nsprefix": "sfbc", "nsuri": "http://soundcb.com/20200630", "report": { "R1": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "dei:DocumentType", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "true", "longName": "0001001 - Document - Cover", "role": "http://soundcb.com/role/Cover", "shortName": "Cover", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "dei:DocumentType", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R10": { "firstAnchor": { "ancestors": [ "us-gaap:NewAccountingPronouncementsPolicyPolicyTextBlock", "span", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SignificantAccountingPoliciesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2103102 - Disclosure - Accounting Pronouncements Recently Issued or Adopted", "role": "http://soundcb.com/role/AccountingPronouncementsRecentlyIssuedorAdopted", "shortName": "Accounting Pronouncements Recently Issued or Adopted", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "us-gaap:NewAccountingPronouncementsPolicyPolicyTextBlock", "span", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SignificantAccountingPoliciesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R11": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2104103 - Disclosure - Investments", "role": "http://soundcb.com/role/Investments", "shortName": "Investments", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R12": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:LoansNotesTradeAndOtherReceivablesDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2109104 - Disclosure - Loans", "role": "http://soundcb.com/role/Loans", "shortName": "Loans", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:LoansNotesTradeAndOtherReceivablesDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R13": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:FairValueDisclosuresTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2119105 - Disclosure - Fair Value Measurements", "role": "http://soundcb.com/role/FairValueMeasurements", "shortName": "Fair Value Measurements", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:FairValueDisclosuresTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R14": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "sfbc:MortgageServicingRightsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2124106 - Disclosure - Mortgage Servicing Rights", "role": "http://soundcb.com/role/MortgageServicingRights", "shortName": "Mortgage Servicing Rights", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "sfbc:MortgageServicingRightsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R15": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2128107 - Disclosure - Commitments and Contingencies", "role": "http://soundcb.com/role/CommitmentsandContingencies", "shortName": "Commitments and Contingencies", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R16": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DebtDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2129108 - Disclosure - Borrowings and FHLB Stock", "role": "http://soundcb.com/role/BorrowingsandFHLBStock", "shortName": "Borrowings and FHLB Stock", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DebtDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R17": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:EarningsPerShareTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2131109 - Disclosure - Earnings Per Common Share", "role": "http://soundcb.com/role/EarningsPerCommonShare", "shortName": "Earnings Per Common Share", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:EarningsPerShareTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R18": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2134110 - Disclosure - Stock-based Compensation", "role": "http://soundcb.com/role/StockbasedCompensation", "shortName": "Stock-based Compensation", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R19": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:RevenueFromContractWithCustomerTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2140111 - Disclosure - Revenue from Contracts with Customers", "role": "http://soundcb.com/role/RevenuefromContractswithCustomers", "shortName": "Revenue from Contracts with Customers", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:RevenueFromContractWithCustomerTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R2": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i15350aa6a5444c61bd09f3e5423b150d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "1001002 - Statement - Condensed Consolidated Balance Sheets (unaudited)", "role": "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited", "shortName": "Condensed Consolidated Balance Sheets (unaudited)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i15350aa6a5444c61bd09f3e5423b150d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R20": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:LesseeOperatingLeasesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2143112 - Disclosure - Leases", "role": "http://soundcb.com/role/Leases", "shortName": "Leases", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:LesseeOperatingLeasesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R21": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SubsequentEventsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2149113 - Disclosure - Subsequent Event", "role": "http://soundcb.com/role/SubsequentEvent", "shortName": "Subsequent Event", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SubsequentEventsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R22": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:BasisOfAccountingPolicyPolicyTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2202201 - Disclosure - Basis of Presentation (Policies)", "role": "http://soundcb.com/role/BasisofPresentationPolicies", "shortName": "Basis of Presentation (Policies)", "subGroupType": "policies", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:BasisOfAccountingPolicyPolicyTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R23": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2305301 - Disclosure - Investments (Tables)", "role": "http://soundcb.com/role/InvestmentsTables", "shortName": "Investments (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R24": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2310302 - Disclosure - Loans (Tables)", "role": "http://soundcb.com/role/LoansTables", "shortName": "Loans (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R25": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:FairValueByBalanceSheetGroupingTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2320303 - Disclosure - Fair Value Measurements (Tables)", "role": "http://soundcb.com/role/FairValueMeasurementsTables", "shortName": "Fair Value Measurements (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:FairValueByBalanceSheetGroupingTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R26": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfServicingAssetsAtFairValueTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2325304 - Disclosure - Mortgage Servicing Rights (Tables)", "role": "http://soundcb.com/role/MortgageServicingRightsTables", "shortName": "Mortgage Servicing Rights (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfServicingAssetsAtFairValueTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R27": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2332305 - Disclosure - Earnings Per Common Share (Tables)", "role": "http://soundcb.com/role/EarningsPerCommonShareTables", "shortName": "Earnings Per Common Share (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R28": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2335306 - Disclosure - Stock-based Compensation (Tables)", "role": "http://soundcb.com/role/StockbasedCompensationTables", "shortName": "Stock-based Compensation (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R29": { "firstAnchor": { "ancestors": [ "span", "ix:continuation", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DisaggregationOfRevenueTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2341307 - Disclosure - Revenue from Contracts with Customers (Tables)", "role": "http://soundcb.com/role/RevenuefromContractswithCustomersTables", "shortName": "Revenue from Contracts with Customers (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "span", "ix:continuation", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DisaggregationOfRevenueTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R3": { "firstAnchor": { "ancestors": [ "us-gaap:PreferredStockParOrStatedValuePerShare", "span", "div", "td", "tr", "table", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i15350aa6a5444c61bd09f3e5423b150d_I20200630", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:PreferredStockParOrStatedValuePerShare", "reportCount": 1, "unique": true, "unitRef": "usdPerShare", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "1002003 - Statement - Condensed Consolidated Balance Sheets (unaudited) (Parenthetical)", "role": "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunauditedParenthetical", "shortName": "Condensed Consolidated Balance Sheets (unaudited) (Parenthetical)", "subGroupType": "parenthetical", "uniqueAnchor": { "ancestors": [ "us-gaap:PreferredStockParOrStatedValuePerShare", "span", "div", "td", "tr", "table", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i15350aa6a5444c61bd09f3e5423b150d_I20200630", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:PreferredStockParOrStatedValuePerShare", "reportCount": 1, "unique": true, "unitRef": "usdPerShare", "xsiNil": "false" } }, "R30": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "sfbc:AssetsAndLiabilitiesLesseeTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2344308 - Disclosure - Leases (Tables)", "role": "http://soundcb.com/role/LeasesTables", "shortName": "Leases (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "sfbc:AssetsAndLiabilitiesLesseeTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R31": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i15350aa6a5444c61bd09f3e5423b150d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2406401 - Disclosure - Investments - Amortized Cost and Fair Value of AFS Securities and Corresponding Amounts of Gross Unrealized Gains And Losses (Details)", "role": "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofAFSSecuritiesandCorrespondingAmountsofGrossUnrealizedGainsAndLossesDetails", "shortName": "Investments - Amortized Cost and Fair Value of AFS Securities and Corresponding Amounts of Gross Unrealized Gains And Losses (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i15350aa6a5444c61bd09f3e5423b150d_I20200630", "decimals": "-3", "lang": "en-US", "name": "us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R32": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:InvestmentsClassifiedByContractualMaturityDateTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i15350aa6a5444c61bd09f3e5423b150d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCostBasis", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2407402 - Disclosure - Investments - Amortized Cost and Fair Value of Investments Available-for-Sale by Contractual Maturity (Details)", "role": "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofInvestmentsAvailableforSalebyContractualMaturityDetails", "shortName": "Investments - Amortized Cost and Fair Value of Investments Available-for-Sale by Contractual Maturity (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "us-gaap:DebtSecuritiesAvailableForSaleRestricted", "span", "div", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "ib4a8056e0b1c4d41916a1ab25cd18c25_I20191231", "decimals": "INF", "lang": "en-US", "name": "us-gaap:DebtSecuritiesAvailableForSaleRestricted", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R33": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i15350aa6a5444c61bd09f3e5423b150d_I20200630", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:DebtSecuritiesAvailableForSaleAccumulatedGrossUnrealizedGainLossBeforeTax", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2408403 - Disclosure - Investments - Aggregate Fair Value and Gross Unrealized Loss in Continuous Unrealized Loss Position (Details)", "role": "http://soundcb.com/role/InvestmentsAggregateFairValueandGrossUnrealizedLossinContinuousUnrealizedLossPositionDetails", "shortName": "Investments - Aggregate Fair Value and Gross Unrealized Loss in Continuous Unrealized Loss Position (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i15350aa6a5444c61bd09f3e5423b150d_I20200630", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:DebtSecuritiesAvailableForSaleAccumulatedGrossUnrealizedGainLossBeforeTax", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R34": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i15350aa6a5444c61bd09f3e5423b150d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:LoansAndLeasesReceivableGrossCarryingAmount", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2411404 - Disclosure - Loans - Composition of Loans (Details)", "role": "http://soundcb.com/role/LoansCompositionofLoansDetails", "shortName": "Loans - Composition of Loans (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i15350aa6a5444c61bd09f3e5423b150d_I20200630", "decimals": "-3", "lang": "en-US", "name": "us-gaap:LoansAndLeasesReceivableDeferredIncome", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R35": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i15350aa6a5444c61bd09f3e5423b150d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2412405 - Disclosure - Loans - Allowance for Loan Losses and Recorded Investment in Loans by Portfolio Segment and Based on Impairment Method (Details)", "role": "http://soundcb.com/role/LoansAllowanceforLoanLossesandRecordedInvestmentinLoansbyPortfolioSegmentandBasedonImpairmentMethodDetails", "shortName": "Loans - Allowance for Loan Losses and Recorded Investment in Loans by Portfolio Segment and Based on Impairment Method (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i15350aa6a5444c61bd09f3e5423b150d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R36": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "ix:continuation", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i29af72e6c310479a80a70d2ac83040e7_I20200331", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:LoansAndLeasesReceivableAllowance", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2413406 - Disclosure - Loans - Activity in Allowance for Loan Losses (Details)", "role": "http://soundcb.com/role/LoansActivityinAllowanceforLoanLossesDetails", "shortName": "Loans - Activity in Allowance for Loan Losses (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "ix:continuation", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "ic483f918bd104cab874e2f0d1256f7f0_D20200401-20200630", "decimals": "-3", "lang": "en-US", "name": "us-gaap:AllowanceForLoanAndLeaseLossesWriteOffs", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R37": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i15350aa6a5444c61bd09f3e5423b150d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:LoansAndLeasesReceivableGrossCarryingAmount", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2414407 - Disclosure - Loans - Credit Quality Indicators (Details)", "role": "http://soundcb.com/role/LoansCreditQualityIndicatorsDetails", "shortName": "Loans - Credit Quality Indicators (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:FinancingReceivableCreditQualityIndicatorsTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i045ff10737024cf2bada257dbf64500b_I20200630", "decimals": "-3", "lang": "en-US", "name": "us-gaap:LoansAndLeasesReceivableGrossCarryingAmount", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R38": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfFinancingReceivablesNonAccrualStatusTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i15350aa6a5444c61bd09f3e5423b150d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:FinancingReceivableRecordedInvestmentNonaccrualStatus", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2415408 - Disclosure - Loans - Nonaccrual Loans and Aging of Recorded Investment in Past Due Loans (Details)", "role": "http://soundcb.com/role/LoansNonaccrualLoansandAgingofRecordedInvestmentinPastDueLoansDetails", "shortName": "Loans - Nonaccrual Loans and Aging of Recorded Investment in Past Due Loans (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfFinancingReceivablesNonAccrualStatusTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i15350aa6a5444c61bd09f3e5423b150d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:FinancingReceivableRecordedInvestmentNonaccrualStatus", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R39": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i15350aa6a5444c61bd09f3e5423b150d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:LoansAndLeasesReceivableGrossCarryingAmount", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2416409 - Disclosure - Loans - Credit Risk Profile of Loan Portfolio Based on Payment Activity by Type of Loan (Details)", "role": "http://soundcb.com/role/LoansCreditRiskProfileofLoanPortfolioBasedonPaymentActivitybyTypeofLoanDetails", "shortName": "Loans - Credit Risk Profile of Loan Portfolio Based on Payment Activity by Type of Loan (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "sfbc:CreditRiskProfileOfLoanPortfolioBasedOnPaymentActivityByTypeOfLoanTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i64028852df6e42fba2f629e8e49ac0ae_I20200630", "decimals": "-3", "lang": "en-US", "name": "us-gaap:LoansAndLeasesReceivableGrossCarryingAmount", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R4": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "ic483f918bd104cab874e2f0d1256f7f0_D20200401-20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:InterestAndFeeIncomeLoansAndLeases", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "1003004 - Statement - Condensed Consolidated Statements of Income (unaudited)", "role": "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited", "shortName": "Condensed Consolidated Statements of Income (unaudited)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "ic483f918bd104cab874e2f0d1256f7f0_D20200401-20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:InterestAndFeeIncomeLoansAndLeases", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R40": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ImpairedFinancingReceivablesTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i15350aa6a5444c61bd09f3e5423b150d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:ImpairedFinancingReceivableUnpaidPrincipalBalance", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2417410 - Disclosure - Loans - Impaired Loans, Individually Evaluated (Details)", "role": "http://soundcb.com/role/LoansImpairedLoansIndividuallyEvaluatedDetails", "shortName": "Loans - Impaired Loans, Individually Evaluated (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ImpairedFinancingReceivablesTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "ib4a8056e0b1c4d41916a1ab25cd18c25_I20191231", "decimals": "-3", "lang": "en-US", "name": "us-gaap:ImpairedFinancingReceivableUnpaidPrincipalBalance", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R41": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i15350aa6a5444c61bd09f3e5423b150d_I20200630", "decimals": "-5", "first": true, "lang": "en-US", "name": "us-gaap:FinancingReceivableModificationsRecordedInvestment", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2418411 - Disclosure - Loans - Troubled Debt Restructurings (Details)", "role": "http://soundcb.com/role/LoansTroubledDebtRestructuringsDetails", "shortName": "Loans - Troubled Debt Restructurings (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "ib4a8056e0b1c4d41916a1ab25cd18c25_I20191231", "decimals": "-5", "lang": "en-US", "name": "us-gaap:FinancingReceivableModificationsRecordedInvestment", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R42": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i15350aa6a5444c61bd09f3e5423b150d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:AvailableForSaleSecuritiesDebtSecurities", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2421412 - Disclosure - Fair Value Measurements - Information about Level in Fair Value Hierarchy for Financial Instruments (Details)", "role": "http://soundcb.com/role/FairValueMeasurementsInformationaboutLevelinFairValueHierarchyforFinancialInstrumentsDetails", "shortName": "Fair Value Measurements - Information about Level in Fair Value Hierarchy for Financial Instruments (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:FairValueByBalanceSheetGroupingTextBlock", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "ia43956ea9de443fdb820b781c6d5f04d_I20200630", "decimals": "-3", "lang": "en-US", "name": "us-gaap:CashAndCashEquivalentsFairValueDisclosure", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R43": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:FairValueAssetsMeasuredOnRecurringBasisTextBlock", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i333224dba6e7459eba72d0bbc844ac51_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "sfbc:MunicipalBondsFairValueDisclosure", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2422413 - Disclosure - Fair Value Measurements - Schedule of Fair Value Measured on Recurring and Nonrecurring Basis (Details)", "role": "http://soundcb.com/role/FairValueMeasurementsScheduleofFairValueMeasuredonRecurringandNonrecurringBasisDetails", "shortName": "Fair Value Measurements - Schedule of Fair Value Measured on Recurring and Nonrecurring Basis (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:FairValueAssetsMeasuredOnRecurringBasisTextBlock", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i333224dba6e7459eba72d0bbc844ac51_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "sfbc:MunicipalBondsFairValueDisclosure", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R44": { "firstAnchor": { "ancestors": [ "span", "div", "td", "tr", "table", "div", "us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "ic857fae074a94261941437e795541919_I20200630", "decimals": "2", "first": true, "lang": "en-US", "name": "us-gaap:ServicingAssetMeasurementInput", "reportCount": 1, "unique": true, "unitRef": "number", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2423414 - Disclosure - Fair Value Measurements - Quantitative Information (Details)", "role": "http://soundcb.com/role/FairValueMeasurementsQuantitativeInformationDetails", "shortName": "Fair Value Measurements - Quantitative Information (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "td", "tr", "table", "div", "us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "ic857fae074a94261941437e795541919_I20200630", "decimals": "2", "first": true, "lang": "en-US", "name": "us-gaap:ServicingAssetMeasurementInput", "reportCount": 1, "unique": true, "unitRef": "number", "xsiNil": "false" } }, "R45": { "firstAnchor": { "ancestors": [ "ix:continuation", "span", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i15350aa6a5444c61bd09f3e5423b150d_I20200630", "decimals": "-5", "first": true, "lang": "en-US", "name": "us-gaap:PrincipalAmountOutstandingOfLoansHeldInPortfolio", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2426415 - Disclosure - Mortgage Servicing Rights - Additional Information (Details)", "role": "http://soundcb.com/role/MortgageServicingRightsAdditionalInformationDetails", "shortName": "Mortgage Servicing Rights - Additional Information (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "ix:continuation", "span", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "ib4a8056e0b1c4d41916a1ab25cd18c25_I20191231", "decimals": "-5", "lang": "en-US", "name": "us-gaap:PrincipalAmountOutstandingOfLoansHeldInPortfolio", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R46": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfServicingAssetsAtFairValueTextBlock", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i29af72e6c310479a80a70d2ac83040e7_I20200331", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:ServicingAssetAtFairValueAmount", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2427416 - Disclosure - Mortgage Servicing Rights - Summary of Change in Balance of Mortgage Servicing Assets (Details)", "role": "http://soundcb.com/role/MortgageServicingRightsSummaryofChangeinBalanceofMortgageServicingAssetsDetails", "shortName": "Mortgage Servicing Rights - Summary of Change in Balance of Mortgage Servicing Assets (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfServicingAssetsAtFairValueTextBlock", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "ic483f918bd104cab874e2f0d1256f7f0_D20200401-20200630", "decimals": "-3", "lang": "en-US", "name": "us-gaap:ServicingAssetAtFairValueAdditions", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R47": { "firstAnchor": { "ancestors": [ "ix:continuation", "span", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i15350aa6a5444c61bd09f3e5423b150d_I20200630", "decimals": "4", "first": true, "lang": "en-US", "name": "us-gaap:FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate", "reportCount": 1, "unique": true, "unitRef": "number", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2430417 - Disclosure - Borrowings and FHLB Stock (Details)", "role": "http://soundcb.com/role/BorrowingsandFHLBStockDetails", "shortName": "Borrowings and FHLB Stock (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "ix:continuation", "span", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i15350aa6a5444c61bd09f3e5423b150d_I20200630", "decimals": "4", "first": true, "lang": "en-US", "name": "us-gaap:FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate", "reportCount": 1, "unique": true, "unitRef": "number", "xsiNil": "false" } }, "R48": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "ic483f918bd104cab874e2f0d1256f7f0_D20200401-20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2433418 - Disclosure - Earnings Per Common Share (Details)", "role": "http://soundcb.com/role/EarningsPerCommonShareDetails", "shortName": "Earnings Per Common Share (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "ic483f918bd104cab874e2f0d1256f7f0_D20200401-20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R49": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": "INF", "first": true, "lang": "en-US", "name": "sfbc:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfExistingEquityIncentivePlans", "reportCount": 1, "unique": true, "unitRef": "loan", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2436419 - Disclosure - Stock-based Compensation - Stock Options and Restricted Stock (Details)", "role": "http://soundcb.com/role/StockbasedCompensationStockOptionsandRestrictedStockDetails", "shortName": "Stock-based Compensation - Stock Options and Restricted Stock (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": "INF", "first": true, "lang": "en-US", "name": "sfbc:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfExistingEquityIncentivePlans", "reportCount": 1, "unique": true, "unitRef": "loan", "xsiNil": "false" } }, "R5": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "ic483f918bd104cab874e2f0d1256f7f0_D20200401-20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:NetIncomeLoss", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "1004005 - Statement - Condensed Consolidated Statements of Comprehensive Income (unaudited)", "role": "http://soundcb.com/role/CondensedConsolidatedStatementsofComprehensiveIncomeunaudited", "shortName": "Condensed Consolidated Statements of Comprehensive Income (unaudited)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "ic483f918bd104cab874e2f0d1256f7f0_D20200401-20200630", "decimals": "-3", "lang": "en-US", "name": "us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R50": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i25f3f4e920cf4e90b022a05d6228ebf4_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2437420 - Disclosure - Stock-based Compensation - Stock Option Awards (Details)", "role": "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails", "shortName": "Stock-based Compensation - Stock Option Awards (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i25f3f4e920cf4e90b022a05d6228ebf4_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R51": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfNonvestedRestrictedStockUnitsActivityTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i19e82c72886b41dc8990d0ace4958e30_I20191231", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber", "reportCount": 1, "unique": true, "unitRef": "shares", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2438421 - Disclosure - Stock-based Compensation - Restricted Stock Awards (Details)", "role": "http://soundcb.com/role/StockbasedCompensationRestrictedStockAwardsDetails", "shortName": "Stock-based Compensation - Restricted Stock Awards (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfNonvestedRestrictedStockUnitsActivityTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i19e82c72886b41dc8990d0ace4958e30_I20191231", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber", "reportCount": 1, "unique": true, "unitRef": "shares", "xsiNil": "false" } }, "R52": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "id031f073b87c4eb1bf712dcce62fcebf_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "sfbc:EmployeeStockOwnershipPlanESOPLoanRepaymentPeriod", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2439422 - Disclosure - Stock-based Compensation - Employee Stock Ownership Plan (Details)", "role": "http://soundcb.com/role/StockbasedCompensationEmployeeStockOwnershipPlanDetails", "shortName": "Stock-based Compensation - Employee Stock Ownership Plan (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "id031f073b87c4eb1bf712dcce62fcebf_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "sfbc:EmployeeStockOwnershipPlanESOPLoanRepaymentPeriod", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R53": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "ix:continuation", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "ic483f918bd104cab874e2f0d1256f7f0_D20200401-20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "sfbc:LoanFees", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2442423 - Disclosure - Revenue from Contracts with Customers (Details)", "role": "http://soundcb.com/role/RevenuefromContractswithCustomersDetails", "shortName": "Revenue from Contracts with Customers (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "ix:continuation", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "ic483f918bd104cab874e2f0d1256f7f0_D20200401-20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "sfbc:LoanFees", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R54": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": "INF", "first": true, "lang": "en-US", "name": "sfbc:LesseeOperatingLeaseNumberOfRenewalOptions", "reportCount": 1, "unique": true, "unitRef": "renewal_option", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2445424 - Disclosure - Leases - Additional Information (Details)", "role": "http://soundcb.com/role/LeasesAdditionalInformationDetails", "shortName": "Leases - Additional Information (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": "INF", "first": true, "lang": "en-US", "name": "sfbc:LesseeOperatingLeaseNumberOfRenewalOptions", "reportCount": 1, "unique": true, "unitRef": "renewal_option", "xsiNil": "false" } }, "R55": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i15350aa6a5444c61bd09f3e5423b150d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:OperatingLeaseRightOfUseAsset", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2446425 - Disclosure - Leases - Summary of Balance Sheet Information Related to Leases (Details)", "role": "http://soundcb.com/role/LeasesSummaryofBalanceSheetInformationRelatedtoLeasesDetails", "shortName": "Leases - Summary of Balance Sheet Information Related to Leases (Details)", "subGroupType": "details", "uniqueAnchor": null }, "R56": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:LeaseCostTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "ic483f918bd104cab874e2f0d1256f7f0_D20200401-20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:SubleaseIncome", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2447426 - Disclosure - Leases - Summary of Components of the Leases and Supplemental Cash Flow Information (Details)", "role": "http://soundcb.com/role/LeasesSummaryofComponentsoftheLeasesandSupplementalCashFlowInformationDetails", "shortName": "Leases - Summary of Components of the Leases and Supplemental Cash Flow Information (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:LeaseCostTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "ic483f918bd104cab874e2f0d1256f7f0_D20200401-20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:SubleaseIncome", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R57": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "sfbc:AssetsAndLiabilitiesLesseeTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i15350aa6a5444c61bd09f3e5423b150d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:OperatingLeaseLiability", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2448427 - Disclosure - Leases - Schedule of Lease Liability Maturities (Details)", "role": "http://soundcb.com/role/LeasesScheduleofLeaseLiabilityMaturitiesDetails", "shortName": "Leases - Schedule of Lease Liability Maturities (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i74ae1b9bb3e043ab823c0a747b8d909b_I20200630", "decimals": "-3", "lang": "en-US", "name": "us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R58": { "firstAnchor": { "ancestors": [ "ix:continuation", "span", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "icb0f0b513d564f26abffc46c1442fcfc_D20200724-20200724", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:CommonStockDividendsPerShareDeclared", "reportCount": 1, "unique": true, "unitRef": "usdPerShare", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2450428 - Disclosure - Subsequent Event - Narrative (Details)", "role": "http://soundcb.com/role/SubsequentEventNarrativeDetails", "shortName": "Subsequent Event - Narrative (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "ix:continuation", "span", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "icb0f0b513d564f26abffc46c1442fcfc_D20200724-20200724", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:CommonStockDividendsPerShareDeclared", "reportCount": 1, "unique": true, "unitRef": "usdPerShare", "xsiNil": "false" } }, "R6": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i960d849b81f2492783a08ad73eec6176_I20181231", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:CommonStockSharesOutstanding", "reportCount": 1, "unique": true, "unitRef": "shares", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "1005006 - Statement - Condensed Consolidated Statements of Stockholders' Equity (unaudited)", "role": "http://soundcb.com/role/CondensedConsolidatedStatementsofStockholdersEquityunaudited", "shortName": "Condensed Consolidated Statements of Stockholders' Equity (unaudited)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i960d849b81f2492783a08ad73eec6176_I20181231", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:CommonStockSharesOutstanding", "reportCount": 1, "unique": true, "unitRef": "shares", "xsiNil": "false" } }, "R7": { "firstAnchor": { "ancestors": [ "span", "div", "td", "tr", "table", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "ic483f918bd104cab874e2f0d1256f7f0_D20200401-20200630", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:CommonStockDividendsPerShareCashPaid", "reportCount": 1, "unique": true, "unitRef": "usdPerShare", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "1006007 - Statement - Condensed Consolidated Statements of Stockholders' Equity (unaudited) (Parenthetical)", "role": "http://soundcb.com/role/CondensedConsolidatedStatementsofStockholdersEquityunauditedParenthetical", "shortName": "Condensed Consolidated Statements of Stockholders' Equity (unaudited) (Parenthetical)", "subGroupType": "parenthetical", "uniqueAnchor": { "ancestors": [ "span", "div", "td", "tr", "table", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "ic483f918bd104cab874e2f0d1256f7f0_D20200401-20200630", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:CommonStockDividendsPerShareCashPaid", "reportCount": 1, "unique": true, "unitRef": "usdPerShare", "xsiNil": "false" } }, "R8": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:NetIncomeLoss", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "1007008 - Statement - Condensed Consolidated Statements of Cash Flows (unaudited)", "role": "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited", "shortName": "Condensed Consolidated Statements of Cash Flows (unaudited)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": "-3", "lang": "en-US", "name": "us-gaap:AccretionAmortizationOfDiscountsAndPremiumsInvestments", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R9": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:BusinessDescriptionAndBasisOfPresentationTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2101101 - Disclosure - Basis of Presentation", "role": "http://soundcb.com/role/BasisofPresentation", "shortName": "Basis of Presentation", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "sfbc-20200630.htm", "contextRef": "i3c27abb502ab4fd4833c0c644e0b871c_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:BusinessDescriptionAndBasisOfPresentationTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } } }, "segmentCount": 72, "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", "terseLabel": "Amendment Flag" } } }, "localname": "AmendmentFlag", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://soundcb.com/role/Cover" ], "xbrltype": "booleanItemType" }, "dei_CityAreaCode": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Area code of city", "label": "City Area Code", "terseLabel": "City Area Code" } } }, "localname": "CityAreaCode", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://soundcb.com/role/Cover" ], "xbrltype": "normalizedStringItemType" }, "dei_CoverAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Cover page.", "label": "Cover [Abstract]" } } }, "localname": "CoverAbstract", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "xbrltype": "stringItemType" }, "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", "terseLabel": "Current Fiscal Year End Date" } } }, "localname": "CurrentFiscalYearEndDate", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://soundcb.com/role/Cover" ], "xbrltype": "gMonthDayItemType" }, "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", "terseLabel": "Document Fiscal Period Focus" } } }, "localname": "DocumentFiscalPeriodFocus", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://soundcb.com/role/Cover" ], "xbrltype": "fiscalPeriodItemType" }, "dei_DocumentFiscalYearFocus": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "This is focus fiscal year of the document report in CCYY 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", "terseLabel": "Document Fiscal Year Focus" } } }, "localname": "DocumentFiscalYearFocus", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://soundcb.com/role/Cover" ], "xbrltype": "gYearItemType" }, "dei_DocumentPeriodEndDate": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented. If there is no historical data in the report, use the filing date. The format of the date is CCYY-MM-DD.", "label": "Document Period End Date", "terseLabel": "Document Period End Date" } } }, "localname": "DocumentPeriodEndDate", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://soundcb.com/role/Cover" ], "xbrltype": "dateItemType" }, "dei_DocumentQuarterlyReport": { "auth_ref": [ "r470" ], "lang": { "en-US": { "role": { "documentation": "Boolean flag that is true only for a form used as an quarterly report.", "label": "Document Quarterly Report", "terseLabel": "Document Quarterly Report" } } }, "localname": "DocumentQuarterlyReport", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://soundcb.com/role/Cover" ], "xbrltype": "booleanItemType" }, "dei_DocumentTransitionReport": { "auth_ref": [ "r471" ], "lang": { "en-US": { "role": { "documentation": "Boolean flag that is true only for a form used as a transition report.", "label": "Document Transition Report", "terseLabel": "Document Transition Report" } } }, "localname": "DocumentTransitionReport", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://soundcb.com/role/Cover" ], "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", "terseLabel": "Document Type" } } }, "localname": "DocumentType", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://soundcb.com/role/Cover" ], "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", "terseLabel": "Entity Address, Address Line One" } } }, "localname": "EntityAddressAddressLine1", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://soundcb.com/role/Cover" ], "xbrltype": "normalizedStringItemType" }, "dei_EntityAddressAddressLine2": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Address Line 2 such as Street or Suite number", "label": "Entity Address, Address Line Two", "terseLabel": "Entity Address, Address Line Two" } } }, "localname": "EntityAddressAddressLine2", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://soundcb.com/role/Cover" ], "xbrltype": "normalizedStringItemType" }, "dei_EntityAddressCityOrTown": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Name of the City or Town", "label": "Entity Address, City or Town", "terseLabel": "Entity Address, City or Town" } } }, "localname": "EntityAddressCityOrTown", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://soundcb.com/role/Cover" ], "xbrltype": "normalizedStringItemType" }, "dei_EntityAddressPostalZipCode": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Code for the postal or zip code", "label": "Entity Address, Postal Zip Code", "terseLabel": "Entity Address, Postal Zip Code" } } }, "localname": "EntityAddressPostalZipCode", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://soundcb.com/role/Cover" ], "xbrltype": "normalizedStringItemType" }, "dei_EntityAddressStateOrProvince": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Name of the state or province.", "label": "Entity Address, State or Province", "terseLabel": "Entity Address, State or Province" } } }, "localname": "EntityAddressStateOrProvince", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://soundcb.com/role/Cover" ], "xbrltype": "stateOrProvinceItemType" }, "dei_EntityCentralIndexKey": { "auth_ref": [ "r472" ], "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", "terseLabel": "Entity Central Index Key" } } }, "localname": "EntityCentralIndexKey", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://soundcb.com/role/Cover" ], "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", "terseLabel": "Entity Common Stock, Shares Outstanding" } } }, "localname": "EntityCommonStockSharesOutstanding", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://soundcb.com/role/Cover" ], "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", "terseLabel": "Entity Current Reporting Status" } } }, "localname": "EntityCurrentReportingStatus", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://soundcb.com/role/Cover" ], "xbrltype": "yesNoItemType" }, "dei_EntityEmergingGrowthCompany": { "auth_ref": [ "r472" ], "lang": { "en-US": { "role": { "documentation": "Indicate if registrant meets the emerging growth company criteria.", "label": "Entity Emerging Growth Company", "terseLabel": "Entity Emerging Growth Company" } } }, "localname": "EntityEmergingGrowthCompany", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://soundcb.com/role/Cover" ], "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", "terseLabel": "Entity File Number" } } }, "localname": "EntityFileNumber", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://soundcb.com/role/Cover" ], "xbrltype": "fileNumberItemType" }, "dei_EntityFilerCategory": { "auth_ref": [ "r472" ], "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", "terseLabel": "Entity Filer Category" } } }, "localname": "EntityFilerCategory", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://soundcb.com/role/Cover" ], "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", "terseLabel": "Entity Incorporation, State or Country Code" } } }, "localname": "EntityIncorporationStateCountryCode", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://soundcb.com/role/Cover" ], "xbrltype": "edgarStateCountryItemType" }, "dei_EntityInteractiveDataCurrent": { "auth_ref": [ "r473" ], "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", "terseLabel": "Entity Interactive Data Current" } } }, "localname": "EntityInteractiveDataCurrent", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://soundcb.com/role/Cover" ], "xbrltype": "yesNoItemType" }, "dei_EntityRegistrantName": { "auth_ref": [ "r472" ], "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", "terseLabel": "Entity Registrant Name" } } }, "localname": "EntityRegistrantName", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://soundcb.com/role/Cover" ], "xbrltype": "normalizedStringItemType" }, "dei_EntityShellCompany": { "auth_ref": [ "r472" ], "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", "terseLabel": "Entity Shell Company" } } }, "localname": "EntityShellCompany", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://soundcb.com/role/Cover" ], "xbrltype": "booleanItemType" }, "dei_EntitySmallBusiness": { "auth_ref": [ "r472" ], "lang": { "en-US": { "role": { "documentation": "Indicates that the company is a Smaller Reporting Company (SRC).", "label": "Entity Small Business", "terseLabel": "Entity Small Business" } } }, "localname": "EntitySmallBusiness", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://soundcb.com/role/Cover" ], "xbrltype": "booleanItemType" }, "dei_EntityTaxIdentificationNumber": { "auth_ref": [ "r472" ], "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", "terseLabel": "Entity Tax Identification Number" } } }, "localname": "EntityTaxIdentificationNumber", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://soundcb.com/role/Cover" ], "xbrltype": "employerIdItemType" }, "dei_LocalPhoneNumber": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Local phone number for entity.", "label": "Local Phone Number", "terseLabel": "Local Phone Number" } } }, "localname": "LocalPhoneNumber", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://soundcb.com/role/Cover" ], "xbrltype": "normalizedStringItemType" }, "dei_Security12bTitle": { "auth_ref": [ "r468" ], "lang": { "en-US": { "role": { "documentation": "Title of a 12(b) registered security.", "label": "Title of 12(b) Security", "terseLabel": "Title of 12(b) Security" } } }, "localname": "Security12bTitle", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://soundcb.com/role/Cover" ], "xbrltype": "securityTitleItemType" }, "dei_SecurityExchangeName": { "auth_ref": [ "r469" ], "lang": { "en-US": { "role": { "documentation": "Name of the Exchange on which a security is registered.", "label": "Security Exchange Name", "terseLabel": "Security Exchange Name" } } }, "localname": "SecurityExchangeName", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://soundcb.com/role/Cover" ], "xbrltype": "edgarExchangeCodeItemType" }, "dei_TradingSymbol": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Trading symbol of an instrument as listed on an exchange.", "label": "Trading Symbol", "terseLabel": "Trading Symbol" } } }, "localname": "TradingSymbol", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://soundcb.com/role/Cover" ], "xbrltype": "tradingSymbolItemType" }, "sfbc_AccountMaintenanceFeesMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Revenue generated from account fees and analyzed account fees charged on deposit accounts on a monthly basis.", "label": "Account Maintenance Fees [Member]", "terseLabel": "Account maintenance fees" } } }, "localname": "AccountMaintenanceFeesMember", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/RevenuefromContractswithCustomersDetails" ], "xbrltype": "domainItemType" }, "sfbc_AgencyMortgageBackedSecuritiesFairValueDisclosure": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "This element represents the portion of agency mortgage-backed securities valued at fair value by the entity.", "label": "Agency Mortgage Backed Securities Fair Value Disclosure", "verboseLabel": "Agency mortgage-backed securities" } } }, "localname": "AgencyMortgageBackedSecuritiesFairValueDisclosure", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsScheduleofFairValueMeasuredonRecurringandNonrecurringBasisDetails" ], "xbrltype": "monetaryItemType" }, "sfbc_AllowanceForLoanLossesAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Allowance for loan losses [Abstract]", "terseLabel": "Allowance for loan losses:" } } }, "localname": "AllowanceForLoanLossesAbstract", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/LoansAllowanceforLoanLossesandRecordedInvestmentinLoansbyPortfolioSegmentandBasedonImpairmentMethodDetails" ], "xbrltype": "stringItemType" }, "sfbc_AssetsAndLiabilitiesLesseeTableTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Assets And Liabilities, Lessee [Table Text Block]", "label": "Assets And Liabilities, Lessee [Table Text Block]", "terseLabel": "Summary of Balance Sheet Information Related to Leases" } } }, "localname": "AssetsAndLiabilitiesLesseeTableTextBlock", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/LeasesTables" ], "xbrltype": "textBlockItemType" }, "sfbc_BankOwnedLifeInsuranceIncreaseInCashSurrenderValue": { "auth_ref": [], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited": { "order": 9.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Increase in the value of the cash surrender value of bank owned life insurance policies.", "label": "Bank Owned Life Insurance, Increase in Cash Surrender Value", "negatedLabel": "Increase in cash surrender value of BOLI" } } }, "localname": "BankOwnedLifeInsuranceIncreaseInCashSurrenderValue", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited" ], "xbrltype": "monetaryItemType" }, "sfbc_CommercialAndMultifamilyRealEstateLoanMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Loan to finance the purchase of commercial and multifamily real estate, including but not limited to, land or building.", "label": "Commercial and Multifamily Real Estate Loan [Member]", "terseLabel": "Commercial and multifamily" } } }, "localname": "CommercialAndMultifamilyRealEstateLoanMember", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/BorrowingsandFHLBStockDetails", "http://soundcb.com/role/LoansActivityinAllowanceforLoanLossesDetails", "http://soundcb.com/role/LoansAllowanceforLoanLossesandRecordedInvestmentinLoansbyPortfolioSegmentandBasedonImpairmentMethodDetails", "http://soundcb.com/role/LoansCompositionofLoansDetails", "http://soundcb.com/role/LoansCreditQualityIndicatorsDetails", "http://soundcb.com/role/LoansCreditRiskProfileofLoanPortfolioBasedonPaymentActivitybyTypeofLoanDetails", "http://soundcb.com/role/LoansImpairedLoansIndividuallyEvaluatedDetails", "http://soundcb.com/role/LoansNonaccrualLoansandAgingofRecordedInvestmentinPastDueLoansDetails" ], "xbrltype": "domainItemType" }, "sfbc_ConstructionAndLandLoanMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "A borrowing arrangement which provides the entity with funds to effect construction and purchase land, generally on a draw down, or as needed, basis.", "label": "Construction and Land Loan [Member]", "terseLabel": "Construction and land" } } }, "localname": "ConstructionAndLandLoanMember", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/LoansActivityinAllowanceforLoanLossesDetails", "http://soundcb.com/role/LoansAllowanceforLoanLossesandRecordedInvestmentinLoansbyPortfolioSegmentandBasedonImpairmentMethodDetails", "http://soundcb.com/role/LoansCompositionofLoansDetails", "http://soundcb.com/role/LoansCreditQualityIndicatorsDetails", "http://soundcb.com/role/LoansCreditRiskProfileofLoanPortfolioBasedonPaymentActivitybyTypeofLoanDetails", "http://soundcb.com/role/LoansImpairedLoansIndividuallyEvaluatedDetails", "http://soundcb.com/role/LoansNonaccrualLoansandAgingofRecordedInvestmentinPastDueLoansDetails" ], "xbrltype": "domainItemType" }, "sfbc_CreditCardAndInterchangeFeesMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Revenue generated from fees earned when a credit card issued by the third party agent is used for a transaction.", "label": "Credit Card and Interchange Fees [Member]", "terseLabel": "Credit card interchange fees" } } }, "localname": "CreditCardAndInterchangeFeesMember", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/RevenuefromContractswithCustomersDetails" ], "xbrltype": "domainItemType" }, "sfbc_CreditRiskProfileOfLoanPortfolioBasedOnPaymentActivityByTypeOfLoanTableTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of the credit risk profile of loan portfolio based on payment activity by type of loan.", "label": "Credit Risk Profile of Loan Portfolio Based on Payment Activity by Type of Loan [Table Text Block]", "terseLabel": "Credit Risk Profile of Loan Portfolio Based on Payment Activity by Type of Loan" } } }, "localname": "CreditRiskProfileOfLoanPortfolioBasedOnPaymentActivityByTypeOfLoanTableTextBlock", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/LoansTables" ], "xbrltype": "textBlockItemType" }, "sfbc_DebitATMInterchangeFeesMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Revenue generated from fees earned when a debit card issued by the Bank is used for a transaction.", "label": "Debit/ATM Interchange Fees [Member]", "terseLabel": "Debit/ATM interchange fees" } } }, "localname": "DebitATMInterchangeFeesMember", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/RevenuefromContractswithCustomersDetails" ], "xbrltype": "domainItemType" }, "sfbc_DebtSecuritiesAvailableforsaleUnrealizedLossPositionAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Debt Securities, Available-for-sale, Unrealized Loss Position [Abstract]", "label": "Debt Securities, Available-for-sale, Unrealized Loss Position [Abstract]", "verboseLabel": "Fair Value" } } }, "localname": "DebtSecuritiesAvailableforsaleUnrealizedLossPositionAbstract", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/InvestmentsAggregateFairValueandGrossUnrealizedLossinContinuousUnrealizedLossPositionDetails" ], "xbrltype": "stringItemType" }, "sfbc_DemandDepositsFairValueDisclosure": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "This element represents the portion of demand deposits valued at fair value by the entity.", "label": "Demand Deposits Fair Value Disclosure", "verboseLabel": "Non-maturity deposits" } } }, "localname": "DemandDepositsFairValueDisclosure", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsInformationaboutLevelinFairValueHierarchyforFinancialInstrumentsDetails" ], "xbrltype": "monetaryItemType" }, "sfbc_ESOPLoanToPurchaseCompanyStockInterestRate": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Per annum fixed interest rate for ESOP loan.", "label": "ESOP Loan to Purchase Company Stock, Interest Rate", "terseLabel": "ESOP loan interest rate" } } }, "localname": "ESOPLoanToPurchaseCompanyStockInterestRate", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/StockbasedCompensationEmployeeStockOwnershipPlanDetails" ], "xbrltype": "percentItemType" }, "sfbc_EmployeeStockOwnershipPlanAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Employee Stock Ownership Plan [Abstract]", "terseLabel": "Employee Stock Ownership Plan [Abstract]" } } }, "localname": "EmployeeStockOwnershipPlanAbstract", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/StockbasedCompensationEmployeeStockOwnershipPlanDetails" ], "xbrltype": "stringItemType" }, "sfbc_EmployeeStockOwnershipPlanESOPLoanRepaymentPeriod": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Refers to the period over which the ESOP loan will be repaid, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.", "label": "Employee Stock Ownership Plan (ESOP), Loan Repayment Period", "verboseLabel": "Repayment period" } } }, "localname": "EmployeeStockOwnershipPlanESOPLoanRepaymentPeriod", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/StockbasedCompensationEmployeeStockOwnershipPlanDetails" ], "xbrltype": "durationItemType" }, "sfbc_EmployeeStockOwnershipPlanEmployerLoanAmount": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The amount as of the balance sheet date loaned by the entity (the employer) to ESOP.", "label": "Employee Stock Ownership Plan Employer Loan Amount", "terseLabel": "Amount borrowed by ESOP to purchase common stock" } } }, "localname": "EmployeeStockOwnershipPlanEmployerLoanAmount", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/StockbasedCompensationEmployeeStockOwnershipPlanDetails" ], "xbrltype": "monetaryItemType" }, "sfbc_EmployeeStockOwnershipPlanMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "The employee stock ownership plan.", "label": "Employee Stock Ownership Plan [Member]", "terseLabel": "Employee Stock Ownership Plan" } } }, "localname": "EmployeeStockOwnershipPlanMember", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/StockbasedCompensationEmployeeStockOwnershipPlanDetails" ], "xbrltype": "domainItemType" }, "sfbc_EquityIncentivePlan2008Member": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Equity-based payment arrangement adopted and approved in 2008, where one or more employees receive shares of stock (units), stock (unit) options, or other equity instruments, or the employer incurs a liability to the employee in amounts based on the price of the employer's stock (unit).", "label": "Equity Incentive Plan 2008 [Member]", "terseLabel": "2008 Plan" } } }, "localname": "EquityIncentivePlan2008Member", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/StockbasedCompensationRestrictedStockAwardsDetails", "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails" ], "xbrltype": "domainItemType" }, "sfbc_EquityIncentivePlan2013Member": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Equity-based payment arrangement adopted and approved in 2013, where one or more employees receive shares of stock (units), stock (unit) options, or other equity instruments, or the employer incurs a liability to the employee in amounts based on the price of the employer's stock (unit).", "label": "Equity Incentive Plan 2013 [Member]", "terseLabel": "2013 Plan" } } }, "localname": "EquityIncentivePlan2013Member", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/StockbasedCompensationRestrictedStockAwardsDetails", "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails", "http://soundcb.com/role/StockbasedCompensationStockOptionsandRestrictedStockDetails" ], "xbrltype": "domainItemType" }, "sfbc_EsopBorrowingOneMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Amount borrowed by ESOP to purchase common stock of the entity.", "label": "ESOP borrowing one [Member]", "terseLabel": "ESOP Borrowing in 2008" } } }, "localname": "EsopBorrowingOneMember", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/StockbasedCompensationEmployeeStockOwnershipPlanDetails" ], "xbrltype": "domainItemType" }, "sfbc_EsopBorrowingTwoMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Amount borrowed by ESOP to purchase common stock of the entity.", "label": "ESOP borrowing two [Member]", "terseLabel": "ESOP Borrowing in 2012" } } }, "localname": "EsopBorrowingTwoMember", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/StockbasedCompensationEmployeeStockOwnershipPlanDetails" ], "xbrltype": "domainItemType" }, "sfbc_EsopRemainingLoanBalanceFromSharesPurchased": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The amount of remaining ESOP loan balance at end of period.", "label": "ESOP remaining loan balance from shares purchased", "terseLabel": "ESOP remaining loan balance from shares purchased" } } }, "localname": "EsopRemainingLoanBalanceFromSharesPurchased", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/StockbasedCompensationEmployeeStockOwnershipPlanDetails" ], "xbrltype": "monetaryItemType" }, "sfbc_FederalNationalMortgageAssociationMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Information about a United States government-sponsored enterprise (GSE), which was founded in 1938 during the Great Depression as part of the New Deal, to expand the secondary mortgage market by securitizing mortgages in the form of mortgage-backed securities (MBS), allowing lenders to reinvest their assets into more lending and in effect increasing the number of lenders in the mortgage market by reducing the reliance on locally based savings and loan associations (or \"thrifts\").", "label": "Federal National Mortgage Association [Member]", "verboseLabel": "Federal National Mortgage Association" } } }, "localname": "FederalNationalMortgageAssociationMember", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/MortgageServicingRightsAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "sfbc_FeesandCommissionsMortgageBankingandServicingIncomeLoss": { "auth_ref": [], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited": { "order": 3.0, "parentTag": "us-gaap_NoninterestIncome", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Fees and Commissions, Mortgage Banking and Servicing, Income (Loss)", "label": "Fees and Commissions, Mortgage Banking and Servicing, Income (Loss)", "terseLabel": "Mortgage servicing income" } } }, "localname": "FeesandCommissionsMortgageBankingandServicingIncomeLoss", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited", "http://soundcb.com/role/MortgageServicingRightsAdditionalInformationDetails", "http://soundcb.com/role/RevenuefromContractswithCustomersDetails" ], "xbrltype": "monetaryItemType" }, "sfbc_FinancingReceivableCARESActLoanRestructuringNumberOfContracts": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Financing Receivable, CARES Act, Loan Restructuring, Number of Contracts", "label": "Financing Receivable, CARES Act, Loan Restructuring, Number of Contracts", "terseLabel": "CARES Act loan restructuring, number of contracts" } } }, "localname": "FinancingReceivableCARESActLoanRestructuringNumberOfContracts", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/LoansTroubledDebtRestructuringsDetails" ], "xbrltype": "integerItemType" }, "sfbc_FinancingReceivableCARESActLoanRestructuringPostmodification": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Financing Receivable, CARES Act, Loan Restructuring, Postmodification", "label": "Financing Receivable, CARES Act, Loan Restructuring, Postmodification", "terseLabel": "CARES Act loan restructuring, postmodification" } } }, "localname": "FinancingReceivableCARESActLoanRestructuringPostmodification", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/LoansTroubledDebtRestructuringsDetails" ], "xbrltype": "monetaryItemType" }, "sfbc_FinancingReceivableModificationsInvestmentPaidOff": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The amount of investment paid off during the period in financing receivables modified by troubled debt restructurings.", "label": "Financing Receivable, Modifications, Investment Paid Off", "terseLabel": "TDR loans paid off" } } }, "localname": "FinancingReceivableModificationsInvestmentPaidOff", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/LoansTroubledDebtRestructuringsDetails" ], "xbrltype": "monetaryItemType" }, "sfbc_FinancingReceivableModificationsPostModificationChangesForUnpaidPrincipalBalanceInLoansModifiedAsTDRsWithinPrevious12MonthsNumberOfContracts": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Number of financing receivables for which there have been post-modification changes for the unpaid principal balance in loans modified by troubled debt restructurings during the period.", "label": "Financing Receivable, Modifications, Post-Modification Changes for Unpaid Principal Balance in Loans Modified as TDRs within Previous 12 Months, Number of Contracts", "terseLabel": "Number of loans with post-modification changes for unpaid principal balance in loans modified as TDRs" } } }, "localname": "FinancingReceivableModificationsPostModificationChangesForUnpaidPrincipalBalanceInLoansModifiedAsTDRsWithinPrevious12MonthsNumberOfContracts", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/LoansTroubledDebtRestructuringsDetails" ], "xbrltype": "integerItemType" }, "sfbc_FinancingReceivableModificationsSubsequentPaymentNumberOfContracts": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Number of financing receivables that have been modified by troubled debt restructurings. which have been paid during the period.", "label": "Financing Receivable, Modifications, Subsequent Payment, Number of Contracts", "terseLabel": "Number of TDR loans paid off" } } }, "localname": "FinancingReceivableModificationsSubsequentPaymentNumberOfContracts", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/LoansTroubledDebtRestructuringsDetails" ], "xbrltype": "integerItemType" }, "sfbc_FloatingHomeLoanMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Loan to purchase or refinance floating homes.", "label": "Floating Home Loan [Member]", "terseLabel": "Floating homes" } } }, "localname": "FloatingHomeLoanMember", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/LoansActivityinAllowanceforLoanLossesDetails", "http://soundcb.com/role/LoansAllowanceforLoanLossesandRecordedInvestmentinLoansbyPortfolioSegmentandBasedonImpairmentMethodDetails", "http://soundcb.com/role/LoansCompositionofLoansDetails", "http://soundcb.com/role/LoansCreditQualityIndicatorsDetails", "http://soundcb.com/role/LoansCreditRiskProfileofLoanPortfolioBasedonPaymentActivitybyTypeofLoanDetails", "http://soundcb.com/role/LoansImpairedLoansIndividuallyEvaluatedDetails", "http://soundcb.com/role/LoansNonaccrualLoansandAgingofRecordedInvestmentinPastDueLoansDetails" ], "xbrltype": "domainItemType" }, "sfbc_GainLossonSalesofLoansNetExcludingFairValueChangeinMortgageServicingRights": { "auth_ref": [], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited": { "order": 11.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Gain (Loss) on Sales of Loans, Net, Excluding Fair Value Change in Mortgage Servicing Rights", "label": "Gain (Loss) on Sales of Loans, Net, Excluding Fair Value Change in Mortgage Servicing Rights", "negatedLabel": "Net gain on sale of loans" } } }, "localname": "GainLossonSalesofLoansNetExcludingFairValueChangeinMortgageServicingRights", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited" ], "xbrltype": "monetaryItemType" }, "sfbc_ImpairedFinancingReceivableAverageRecordedInvestmentAndInterestIncomeRecognizedAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Impaired Financing Receivable, Average Recorded Investment and Interest Income Recognized [Abstract]", "terseLabel": "Impaired Loans [Abstract]" } } }, "localname": "ImpairedFinancingReceivableAverageRecordedInvestmentAndInterestIncomeRecognizedAbstract", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/LoansImpairedLoansIndividuallyEvaluatedDetails" ], "xbrltype": "stringItemType" }, "sfbc_ImpairedLoansFairValueDisclosure": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "This element represents the portion of impaired loans valued at fair value by the entity.", "label": "Impaired Loans Fair Value Disclosure", "verboseLabel": "Impaired loans" } } }, "localname": "ImpairedLoansFairValueDisclosure", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsScheduleofFairValueMeasuredonRecurringandNonrecurringBasisDetails" ], "xbrltype": "monetaryItemType" }, "sfbc_ImpairedLoansMeasurementInput": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Value of input used to measure impaired loans.", "label": "Impaired Loans, Measurement Input", "terseLabel": "Impaired loans, unobservable input(s)" } } }, "localname": "ImpairedLoansMeasurementInput", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsQuantitativeInformationDetails" ], "xbrltype": "decimalItemType" }, "sfbc_ImpairedLoansMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Represents loans categorized as impaired by bank.", "label": "Impaired Loans [Member]", "terseLabel": "Impaired loans" } } }, "localname": "ImpairedLoansMember", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsQuantitativeInformationDetails" ], "xbrltype": "domainItemType" }, "sfbc_IncreaseDecreaseinBorrowersAdvancePaymentsforTaxesandInsurance": { "auth_ref": [], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited": { "order": 10.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Increase (Decrease) in Borrowers' Advance Payments for Taxes and Insurance", "label": "Increase (Decrease) in Borrowers' Advance Payments for Taxes and Insurance", "terseLabel": "Net change in advances from borrowers for taxes and insurance" } } }, "localname": "IncreaseDecreaseinBorrowersAdvancePaymentsforTaxesandInsurance", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited" ], "xbrltype": "monetaryItemType" }, "sfbc_LeaseLiabilityObtainedinExchangeforOperatingLeaseLiability": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Lease Liability Obtained in Exchange for Operating Lease Liability", "label": "Lease Liability Obtained in Exchange for Operating Lease Liability", "terseLabel": "Lease Liabilities" } } }, "localname": "LeaseLiabilityObtainedinExchangeforOperatingLeaseLiability", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited" ], "xbrltype": "monetaryItemType" }, "sfbc_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour": { "auth_ref": [], "calculation": { "http://soundcb.com/role/LeasesScheduleofLeaseLiabilityMaturitiesDetails": { "order": 6.0, "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Lessee, Operating Lease, Liability, to be Paid, after Year Four", "label": "Lessee, Operating Lease, Liability, to be Paid, after Year Four", "terseLabel": "Thereafter" } } }, "localname": "LesseeOperatingLeaseLiabilityToBePaidAfterYearFour", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/LeasesScheduleofLeaseLiabilityMaturitiesDetails" ], "xbrltype": "monetaryItemType" }, "sfbc_LesseeOperatingLeaseNumberOfRenewalOptions": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Lessee, Operating Lease, Number Of Renewal Options", "label": "Lessee, Operating Lease, Number Of Renewal Options", "terseLabel": "Number of renewal options" } } }, "localname": "LesseeOperatingLeaseNumberOfRenewalOptions", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/LeasesAdditionalInformationDetails" ], "xbrltype": "integerItemType" }, "sfbc_LoanFees": { "auth_ref": [], "calculation": { "http://soundcb.com/role/RevenuefromContractswithCustomersDetails": { "order": 3.0, "parentTag": "us-gaap_InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of revenue from loan fees not within scope of ASC 606.", "label": "Loan Fees", "terseLabel": "Loan fees" } } }, "localname": "LoanFees", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/RevenuefromContractswithCustomersDetails" ], "xbrltype": "monetaryItemType" }, "sfbc_LoansHeldForPortfolioAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Loans Held for Portfolio [Abstract]", "terseLabel": "Loans held-for-portfolio:" } } }, "localname": "LoansHeldForPortfolioAbstract", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/LoansAllowanceforLoanLossesandRecordedInvestmentinLoansbyPortfolioSegmentandBasedonImpairmentMethodDetails" ], "xbrltype": "stringItemType" }, "sfbc_LoansServicedForOthers": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of loans serviced for the benefit of others.", "label": "Loans Serviced for Others", "terseLabel": "Loans serviced for others" } } }, "localname": "LoansServicedForOthers", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/MortgageServicingRightsAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "sfbc_LossesGainsOnSalesOfOtherRealEstateOwnedAndRepossessedAssets": { "auth_ref": [], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited": { "order": 1.0, "parentTag": "us-gaap_NoninterestExpense", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The net loss (gain) 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. Amount of expense recognized during the period for the foreclosure on real estate assets.", "label": "Losses (Gains) on Sales of Other Real Estate Owned and Repossessed Assets", "terseLabel": "Net loss on OREO and repossessed assets" } } }, "localname": "LossesGainsOnSalesOfOtherRealEstateOwnedAndRepossessedAssets", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited" ], "xbrltype": "monetaryItemType" }, "sfbc_ManufacturedHomeLoanMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Loan to finance the purchase of manufactured homes.", "label": "Manufactured Home Loan [Member]", "terseLabel": "Manufactured homes" } } }, "localname": "ManufacturedHomeLoanMember", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/LoansActivityinAllowanceforLoanLossesDetails", "http://soundcb.com/role/LoansAllowanceforLoanLossesandRecordedInvestmentinLoansbyPortfolioSegmentandBasedonImpairmentMethodDetails", "http://soundcb.com/role/LoansCompositionofLoansDetails", "http://soundcb.com/role/LoansCreditQualityIndicatorsDetails", "http://soundcb.com/role/LoansCreditRiskProfileofLoanPortfolioBasedonPaymentActivitybyTypeofLoanDetails", "http://soundcb.com/role/LoansImpairedLoansIndividuallyEvaluatedDetails", "http://soundcb.com/role/LoansNonaccrualLoansandAgingofRecordedInvestmentinPastDueLoansDetails" ], "xbrltype": "domainItemType" }, "sfbc_MortgageServiceRightsAssumptionsTableTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "The tabular disclosure of the assumptions used to capitalized servicing rights, which contractually entitle the servicer to receive fees and ancillary revenues for performing billing, collection, disbursement and recordkeeping services in connection with a mortgage portfolio.", "label": "Mortgage Service Rights Assumptions [Table Text Block]", "terseLabel": "Mortgage Service Rights Assumptions" } } }, "localname": "MortgageServiceRightsAssumptionsTableTextBlock", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/MortgageServicingRightsTables" ], "xbrltype": "textBlockItemType" }, "sfbc_MortgageServicingRightsFairValueDisclosure": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "This element represents the portion of mortgage servicing rights valued at fair value by the entity.", "label": "Mortgage Servicing Rights Fair Value Disclosure", "verboseLabel": "Mortgage servicing rights" } } }, "localname": "MortgageServicingRightsFairValueDisclosure", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsScheduleofFairValueMeasuredonRecurringandNonrecurringBasisDetails" ], "xbrltype": "monetaryItemType" }, "sfbc_MortgageServicingRightsMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Represents the capitalized servicing rights, which contractually entitle the servicer to receive fees and ancillary revenues for performing billing, collection, disbursement and recordkeeping services in connection with a mortgage portfolio. Rights may be obtained via (1) acquisition or assumption of a servicing obligation that does not relate to financial assets of the servicer or its consolidated affiliates; or (2) by originating mortgage loans and then (a) transferring the loans to a Variable Interest Entity (VIE) in a transaction that meets the necessary transfer and classification requirements, or (b) transferring the loans in a transaction that meets the requirements for sale accounting.", "label": "Mortgage Servicing Rights [Member]", "terseLabel": "Mortgage Servicing Rights" } } }, "localname": "MortgageServicingRightsMember", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsQuantitativeInformationDetails" ], "xbrltype": "domainItemType" }, "sfbc_MortgageServicingRightsTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Entire disclosure of mortgage servicing rights.", "label": "Mortgage Servicing Rights [Text Block]", "verboseLabel": "Mortgage Servicing Rights" } } }, "localname": "MortgageServicingRightsTextBlock", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/MortgageServicingRights" ], "xbrltype": "textBlockItemType" }, "sfbc_MunicipalBondsFairValueDisclosure": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "This element represents the portion of municipal bonds valued at fair value by the entity.", "label": "Municipal Bonds Fair Value Disclosure", "terseLabel": "Municipal bonds" } } }, "localname": "MunicipalBondsFairValueDisclosure", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsScheduleofFairValueMeasuredonRecurringandNonrecurringBasisDetails" ], "xbrltype": "monetaryItemType" }, "sfbc_NumberOfPortfolioSecurities": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Number of U.S. agency and non-U.S. agency mortgage backed securities in the Company's portfolio.", "label": "Number of portfolio securities", "terseLabel": "Number of portfolio securities" } } }, "localname": "NumberOfPortfolioSecurities", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/InvestmentsAggregateFairValueandGrossUnrealizedLossinContinuousUnrealizedLossPositionDetails" ], "xbrltype": "integerItemType" }, "sfbc_OreoAndRepossessedAssetsFairValueDisclosure": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "This element represents the portion of OREO and repossessed assets valued at fair value by the entity.", "label": "Oreo and Repossessed Assets Fair Value Disclosure", "terseLabel": "OREO and repossessed assets" } } }, "localname": "OreoAndRepossessedAssetsFairValueDisclosure", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsScheduleofFairValueMeasuredonRecurringandNonrecurringBasisDetails" ], "xbrltype": "monetaryItemType" }, "sfbc_OtherConsumerFinancingReceivableMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Class of financing receivables related to other consumer financing receivables.", "label": "Other Consumer Financing Receivable [Member]", "terseLabel": "Other consumer", "verboseLabel": "Other consumer" } } }, "localname": "OtherConsumerFinancingReceivableMember", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/LoansActivityinAllowanceforLoanLossesDetails", "http://soundcb.com/role/LoansAllowanceforLoanLossesandRecordedInvestmentinLoansbyPortfolioSegmentandBasedonImpairmentMethodDetails", "http://soundcb.com/role/LoansCompositionofLoansDetails", "http://soundcb.com/role/LoansCreditQualityIndicatorsDetails", "http://soundcb.com/role/LoansCreditRiskProfileofLoanPortfolioBasedonPaymentActivitybyTypeofLoanDetails", "http://soundcb.com/role/LoansImpairedLoansIndividuallyEvaluatedDetails", "http://soundcb.com/role/LoansNonaccrualLoansandAgingofRecordedInvestmentinPastDueLoansDetails" ], "xbrltype": "domainItemType" }, "sfbc_OtherFees": { "auth_ref": [], "calculation": { "http://soundcb.com/role/RevenuefromContractswithCustomersDetails": { "order": 1.0, "parentTag": "us-gaap_InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of revenue classified as other not within scope of ASC 606.", "label": "Other Fees", "terseLabel": "Other fees" } } }, "localname": "OtherFees", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/RevenuefromContractswithCustomersDetails" ], "xbrltype": "monetaryItemType" }, "sfbc_OtherFinancialInstitutionsMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Information about financial institutions classified as other.", "label": "Other Financial Institutions [Member]", "terseLabel": "Other Financial Institutions" } } }, "localname": "OtherFinancialInstitutionsMember", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/MortgageServicingRightsAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "sfbc_OtherRealEstateOwnedMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Represents other real estate owned by bank.", "label": "Other Real Estate Owned [Member]", "terseLabel": "OREO" } } }, "localname": "OtherRealEstateOwnedMember", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsQuantitativeInformationDetails" ], "xbrltype": "domainItemType" }, "sfbc_PacificCoastBankersBankMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Lender with the Company for unsecured lines of credit.", "label": "Pacific Coast Bankers Bank [Member]", "verboseLabel": "Pacific Coast Banker's Bank" } } }, "localname": "PacificCoastBankersBankMember", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/BorrowingsandFHLBStockDetails" ], "xbrltype": "domainItemType" }, "sfbc_PaymentsforProceedsfromFederalHomeLoanBankStockFinancingActivities": { "auth_ref": [], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited": { "order": 4.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Payments for (Proceeds from) Federal Home Loan Bank Stock, Financing Activities", "label": "Payments for (Proceeds from) Federal Home Loan Bank Stock, Financing Activities", "terseLabel": "FHLB stock redeemed (purchased)" } } }, "localname": "PaymentsforProceedsfromFederalHomeLoanBankStockFinancingActivities", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited" ], "xbrltype": "monetaryItemType" }, "sfbc_PeriodPastDueForLoansToBeAutomaticallyPlacedOnNonaccrual": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Period past due for loans to be automatically placed on nonaccrual, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.", "label": "Period Past Due for Loans to be Automatically Placed on Nonaccrual", "terseLabel": "Period past due for loans to be automatically placed on nonaccrual" } } }, "localname": "PeriodPastDueForLoansToBeAutomaticallyPlacedOnNonaccrual", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/LoansNonaccrualLoansandAgingofRecordedInvestmentinPastDueLoansDetails" ], "xbrltype": "durationItemType" }, "sfbc_RealEstatePortfolioSegmentMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Portfolio segment of the company's total financing receivables related to real estate.", "label": "Real Estate Portfolio Segment [Member]", "terseLabel": "Real estate loans:" } } }, "localname": "RealEstatePortfolioSegmentMember", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/LoansCompositionofLoansDetails" ], "xbrltype": "domainItemType" }, "sfbc_RegulatoryAssessments": { "auth_ref": [], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited": { "order": 4.0, "parentTag": "us-gaap_NoninterestExpense", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The premium paid to the Federal Deposit Insurance Corporation for deposit insurance which is included in noninterest expense. In addition the regulatory assessments paid to the Office of the Comptroller of the Currency.", "label": "Regulatory assessments", "terseLabel": "Regulatory assessments" } } }, "localname": "RegulatoryAssessments", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited" ], "xbrltype": "monetaryItemType" }, "sfbc_RestrictedStockAndRestrictedStockUnitsMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Shares and stock units that an entity has not yet issued because the agreed-upon consideration, such as employee services, has not yet been received.", "label": "Restricted Stock and Restricted Stock Units [Member]", "terseLabel": "Restricted Stock and Restricted Stock Units" } } }, "localname": "RestrictedStockAndRestrictedStockUnitsMember", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/StockbasedCompensationStockOptionsandRestrictedStockDetails" ], "xbrltype": "domainItemType" }, "sfbc_RightofUseAssetObtainedinExchangeforOperatingLeaseLiabilityAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Right-of-Use Asset Obtained in Exchange for Operating Lease Liability [Abstract]", "label": "Right-of-Use Asset Obtained in Exchange for Operating Lease Liability [Abstract]", "terseLabel": "Leases right of use assets obtained in exchange for operating lease liabilities:" } } }, "localname": "RightofUseAssetObtainedinExchangeforOperatingLeaseLiabilityAbstract", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited" ], "xbrltype": "stringItemType" }, "sfbc_ServiceChargesAndFeeIncomeAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Service Charges and Fee Income [Abstract]", "terseLabel": "Service charges and fee income" } } }, "localname": "ServiceChargesAndFeeIncomeAbstract", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/RevenuefromContractswithCustomersDetails" ], "xbrltype": "stringItemType" }, "sfbc_ServicingAssetatFairValueChangesinFairValueAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Servicing Asset at Fair Value, Changes in Fair Value [Abstract]", "label": "Servicing Asset at Fair Value, Changes in Fair Value [Abstract]", "terseLabel": "Changes in fair value:" } } }, "localname": "ServicingAssetatFairValueChangesinFairValueAbstract", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/MortgageServicingRightsSummaryofChangeinBalanceofMortgageServicingAssetsDetails" ], "xbrltype": "stringItemType" }, "sfbc_ShareBasedCompensationArrangementByShareBasedPaymentAwardCumulativeSharesIssuedToDate": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Number of cumulative shares issued to date under a share-based compensation plan.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Cumulative Shares Issued to Date", "terseLabel": "Cumulative number of shares issued (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardCumulativeSharesIssuedToDate", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/StockbasedCompensationStockOptionsandRestrictedStockDetails" ], "xbrltype": "sharesItemType" }, "sfbc_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpectedToVestIntrinsicValue": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Per share weighted average intrinsic value of equity-based compensation awards expected to vest. Excludes stock and unit options.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Expected to Vest, Intrinsic Value", "terseLabel": "Expected to vest assuming a 0% forfeiture rate over the vesting term, aggregate intrinsic value per share (in dollars per share)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpectedToVestIntrinsicValue", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/StockbasedCompensationRestrictedStockAwardsDetails" ], "xbrltype": "perShareItemType" }, "sfbc_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpectedToVestWeightedAverageGrantDateFairValue": { "auth_ref": [], "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 is expected to gain the right as of the balance sheet date, 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": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Expected to Vest, Weighted Average Grant Date Fair Value", "verboseLabel": "Expected to vest assuming a 0% forfeiture rate over the vesting term, weighted average grant date fair value (in dollars per share)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpectedToVestWeightedAverageGrantDateFairValue", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/StockbasedCompensationRestrictedStockAwardsDetails" ], "xbrltype": "perShareItemType" }, "sfbc_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsForfeitureRate": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Forfeiture Rate", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Forfeiture Rate", "terseLabel": "Forfeiture rate" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsForfeitureRate", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/StockbasedCompensationRestrictedStockAwardsDetails", "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails" ], "xbrltype": "percentItemType" }, "sfbc_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExpectedToVestNumbers": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "The number of equity-based payment instruments, excluding stock (or unit) options, that are expected to vest as of the balance sheet date.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Expected to Vest, Numbers", "terseLabel": "Expected to vest assuming a 0% forfeiture rate over the vesting term (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExpectedToVestNumbers", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/StockbasedCompensationRestrictedStockAwardsDetails" ], "xbrltype": "sharesItemType" }, "sfbc_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfExistingEquityIncentivePlans": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Refers to the number of existing Equity Incentive Plans of the entity.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Number of Existing Equity Incentive Plans", "terseLabel": "Share-based compensation arrangement by share-based payment award, number of existing equity incentive plans" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfExistingEquityIncentivePlans", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/StockbasedCompensationStockOptionsandRestrictedStockDetails" ], "xbrltype": "integerItemType" }, "sfbc_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpectedToVest": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "The number of exercisable share options (expected to vest) that may be converted as of the balance sheet date.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Expected to Vest", "terseLabel": "Expected to vest, assuming a 0% forfeiture rate over the vesting term (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpectedToVest", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails" ], "xbrltype": "sharesItemType" }, "sfbc_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpectedToVestAggregateIntrinsicValue": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of expected to vest options that are exercisable.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Expected to Vest, Aggregate Intrinsic Value", "terseLabel": "Expected to vest, assuming a 0% forfeiture rate over the vesting term, aggregate intrinsic value" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpectedToVestAggregateIntrinsicValue", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails" ], "xbrltype": "monetaryItemType" }, "sfbc_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpectedToVestWeightedAverageExercisePrice": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "As of the balance sheet date, the weighted-average exercise price (at which grantees can acquire the shares reserved for issuance) for exercisable stock options that are expected to vest.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Expected to Vest, Weighted Average Exercise Price", "terseLabel": "Expected to vest, assuming a 0% forfeiture rate over the vesting term (in dollars per share)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpectedToVestWeightedAverageExercisePrice", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails" ], "xbrltype": "perShareItemType" }, "sfbc_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpectedToVestWeightedAverageRemainingContractualTerm": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Weighted average remaining contractual term for expected to vest options that are exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Expected to Vest, Weighted Average Remaining Contractual Term", "verboseLabel": "Expected to vest, assuming a 0% forfeiture rate over the vesting term, weighted-average remaining contractual term" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpectedToVestWeightedAverageRemainingContractualTerm", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails" ], "xbrltype": "durationItemType" }, "sfbc_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingCommencementPeriodFromGrantDate": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "The amount of time before the first tranche of the award starts vesting, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.", "label": "Share-based Compensation Arrangement by Share Based Payment Award, Vesting Commencement Period from Grant Date", "terseLabel": "Vesting commencement period from grant date" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingCommencementPeriodFromGrantDate", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/StockbasedCompensationRestrictedStockAwardsDetails", "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails" ], "xbrltype": "durationItemType" }, "sfbc_SmallBusinessAdministrationSBACARESActPaycheckProtectionProgramMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Small Business Administration (SBA), CARES Act, Paycheck Protection Program", "label": "Small Business Administration (SBA), CARES Act, Paycheck Protection Program [Member]", "terseLabel": "CARES Act, PPP Loan" } } }, "localname": "SmallBusinessAdministrationSBACARESActPaycheckProtectionProgramMember", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/BorrowingsandFHLBStockDetails", "http://soundcb.com/role/LoansCompositionofLoansDetails" ], "xbrltype": "domainItemType" }, "sfbc_StockOptionsAndStockAppreciationRightsMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Stock compensation award type.", "label": "Stock Options and Stock Appreciation Rights [Member]", "terseLabel": "Stock Options and Stock Appreciation Rights" } } }, "localname": "StockOptionsAndStockAppreciationRightsMember", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/StockbasedCompensationStockOptionsandRestrictedStockDetails" ], "xbrltype": "domainItemType" }, "sfbc_TIBTheIndependentBankersBankMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Lender with the Company for unsecured lines of credit.", "label": "TIB-The Independent BankersBank [Member]", "terseLabel": "The Independent Bank" } } }, "localname": "TIBTheIndependentBankersBankMember", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/BorrowingsandFHLBStockDetails" ], "xbrltype": "domainItemType" }, "sfbc_TimeDepositsFairValueDisclosure": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "This element represents the portion of time deposits valued at fair value by the entity.", "label": "Time Deposits Fair Value Disclosure", "terseLabel": "Time deposits" } } }, "localname": "TimeDepositsFairValueDisclosure", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsInformationaboutLevelinFairValueHierarchyforFinancialInstrumentsDetails" ], "xbrltype": "monetaryItemType" }, "sfbc_TransactionBasedAndOverdraftServiceChargesMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Revenue generated from fees on deposit accounts are charged to deposit customers for specific services provided to the customer, such as non-sufficient funds fees, overdraft fees, and wire fees and performance obligation is completed as the transaction occurs and the fees are recognized at the time each specific service is provided to the customer.", "label": "Transaction-based and Overdraft Service Charges [Member]", "terseLabel": "Transaction-based and overdraft service charges" } } }, "localname": "TransactionBasedAndOverdraftServiceChargesMember", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/RevenuefromContractswithCustomersDetails" ], "xbrltype": "domainItemType" }, "sfbc_WatchMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "A category of financing receivables considered to be in need of watch.", "label": "Watch [Member]", "terseLabel": "Watch" } } }, "localname": "WatchMember", "nsuri": "http://soundcb.com/20200630", "presentation": [ "http://soundcb.com/role/LoansCreditQualityIndicatorsDetails" ], "xbrltype": "domainItemType" }, "srt_CounterpartyNameAxis": { "auth_ref": [ "r30", "r79" ], "lang": { "en-US": { "role": { "label": "Counterparty Name [Axis]", "terseLabel": "Counterparty Name [Axis]" } } }, "localname": "CounterpartyNameAxis", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://soundcb.com/role/MortgageServicingRightsAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "srt_FederalHomeLoanBankAdvancesBranchOfFHLBBankAxis": { "auth_ref": [ "r440" ], "lang": { "en-US": { "role": { "label": "Federal Home Loan Bank Branch [Axis]", "terseLabel": "Federal Home Loan Bank Branch [Axis]" } } }, "localname": "FederalHomeLoanBankAdvancesBranchOfFHLBBankAxis", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://soundcb.com/role/BorrowingsandFHLBStockDetails" ], "xbrltype": "stringItemType" }, "srt_FederalHomeLoanBankAdvancesBranchOfFHLBBankStateDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Federal Home Loan Bank Branch [Domain]", "terseLabel": "Federal Home Loan Bank Branch [Domain]" } } }, "localname": "FederalHomeLoanBankAdvancesBranchOfFHLBBankStateDomain", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://soundcb.com/role/BorrowingsandFHLBStockDetails" ], "xbrltype": "domainItemType" }, "srt_FederalHomeLoanBankOfDesMoinesMember": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Federal Home Loan Bank of Des Moines [Member]", "terseLabel": "Federal Home Loan Bank of Des Moines" } } }, "localname": "FederalHomeLoanBankOfDesMoinesMember", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://soundcb.com/role/BorrowingsandFHLBStockDetails" ], "xbrltype": "domainItemType" }, "srt_MaximumMember": { "auth_ref": [ "r247", "r248", "r369", "r370", "r371", "r373", "r374", "r375", "r401", "r457", "r459" ], "lang": { "en-US": { "role": { "label": "Maximum [Member]", "terseLabel": "Maximum" } } }, "localname": "MaximumMember", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsQuantitativeInformationDetails", "http://soundcb.com/role/LeasesAdditionalInformationDetails", "http://soundcb.com/role/LoansNonaccrualLoansandAgingofRecordedInvestmentinPastDueLoansDetails", "http://soundcb.com/role/StockbasedCompensationRestrictedStockAwardsDetails", "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails" ], "xbrltype": "domainItemType" }, "srt_MinimumMember": { "auth_ref": [ "r247", "r248", "r369", "r370", "r371", "r373", "r374", "r375", "r401", "r457", "r459" ], "lang": { "en-US": { "role": { "label": "Minimum [Member]", "terseLabel": "Minimum" } } }, "localname": "MinimumMember", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsQuantitativeInformationDetails", "http://soundcb.com/role/LeasesAdditionalInformationDetails", "http://soundcb.com/role/StockbasedCompensationRestrictedStockAwardsDetails", "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails" ], "xbrltype": "domainItemType" }, "srt_ProductOrServiceAxis": { "auth_ref": [ "r129", "r228", "r230", "r402", "r456", "r458" ], "lang": { "en-US": { "role": { "label": "Product and Service [Axis]", "terseLabel": "Products and Services [Axis]" } } }, "localname": "ProductOrServiceAxis", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://soundcb.com/role/RevenuefromContractswithCustomersDetails" ], "xbrltype": "stringItemType" }, "srt_ProductsAndServicesDomain": { "auth_ref": [ "r129", "r228", "r230", "r402", "r456", "r458" ], "lang": { "en-US": { "role": { "label": "Product and Service [Domain]", "terseLabel": "Products and Services [Domain]" } } }, "localname": "ProductsAndServicesDomain", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://soundcb.com/role/RevenuefromContractswithCustomersDetails" ], "xbrltype": "domainItemType" }, "srt_RangeAxis": { "auth_ref": [ "r238", "r247", "r248", "r369", "r370", "r371", "r373", "r374", "r375", "r401", "r457", "r459" ], "lang": { "en-US": { "role": { "label": "Statistical Measurement [Axis]", "terseLabel": "Statistical Measurement [Axis]" } } }, "localname": "RangeAxis", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsQuantitativeInformationDetails", "http://soundcb.com/role/LeasesAdditionalInformationDetails", "http://soundcb.com/role/LoansNonaccrualLoansandAgingofRecordedInvestmentinPastDueLoansDetails", "http://soundcb.com/role/StockbasedCompensationRestrictedStockAwardsDetails", "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails" ], "xbrltype": "stringItemType" }, "srt_RangeMember": { "auth_ref": [ "r238", "r247", "r248", "r369", "r370", "r371", "r373", "r374", "r375", "r401", "r457", "r459" ], "lang": { "en-US": { "role": { "label": "Statistical Measurement [Domain]", "terseLabel": "Statistical Measurement [Domain]" } } }, "localname": "RangeMember", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsQuantitativeInformationDetails", "http://soundcb.com/role/LeasesAdditionalInformationDetails", "http://soundcb.com/role/LoansNonaccrualLoansandAgingofRecordedInvestmentinPastDueLoansDetails", "http://soundcb.com/role/StockbasedCompensationRestrictedStockAwardsDetails", "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails" ], "xbrltype": "domainItemType" }, "srt_RepurchaseAgreementCounterpartyNameDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Counterparty Name [Domain]", "terseLabel": "Counterparty Name [Domain]" } } }, "localname": "RepurchaseAgreementCounterpartyNameDomain", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://soundcb.com/role/MortgageServicingRightsAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "srt_WeightedAverageMember": { "auth_ref": [ "r369", "r371", "r375" ], "lang": { "en-US": { "role": { "label": "Weighted Average [Member]", "terseLabel": "Weighted Average" } } }, "localname": "WeightedAverageMember", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsQuantitativeInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments": { "auth_ref": [ "r68" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited": { "order": 2.0, "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": "Accretion (Amortization) of Discounts and Premiums, Investments", "negatedLabel": "Amortization of net discounts on investments" } } }, "localname": "AccretionAmortizationOfDiscountsAndPremiumsInvestments", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax": { "auth_ref": [ "r14", "r34", "r36", "r37", "r445", "r464", "r465" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited": { "order": 1.0, "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 (Loss), Net of Tax", "terseLabel": "Accumulated other comprehensive income, net of tax" } } }, "localname": "AccumulatedOtherComprehensiveIncomeLossNetOfTax", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccumulatedOtherComprehensiveIncomeMember": { "auth_ref": [ "r33", "r37", "r38", "r84", "r85", "r86", "r309", "r460", "r461" ], "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]", "terseLabel": "Accumulated Other Comprehensive Income, net of tax" } } }, "localname": "AccumulatedOtherComprehensiveIncomeMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofStockholdersEquityunaudited" ], "xbrltype": "domainItemType" }, "us-gaap_AdditionalPaidInCapital": { "auth_ref": [ "r12", "r286" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited": { "order": 4.0, "parentTag": "us-gaap_StockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "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. Includes adjustments to additional paid in capital. Some examples of such adjustments include recording the issuance of debt with a beneficial conversion feature and certain tax consequences of equity instruments awarded to employees. Use this element for the aggregate amount of additional paid-in capital associated with common and preferred stock. For additional paid-in capital associated with only common stock, use the element additional paid in capital, common stock. For additional paid-in capital associated with only preferred stock, use the element additional paid in capital, preferred stock.", "label": "Additional Paid in Capital", "terseLabel": "Additional paid-in capital" } } }, "localname": "AdditionalPaidInCapital", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_AdditionalPaidInCapitalMember": { "auth_ref": [ "r84", "r85", "r86", "r283", "r284", "r285" ], "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]", "terseLabel": "Additional Paid -in Capital" } } }, "localname": "AdditionalPaidInCapitalMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofStockholdersEquityunaudited" ], "xbrltype": "domainItemType" }, "us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue": { "auth_ref": [ "r249", "r251", "r289", "r290" ], "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": "APIC, Share-based Payment Arrangement, Increase for Cost Recognition", "verboseLabel": "Share-based compensation" } } }, "localname": "AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofStockholdersEquityunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]", "terseLabel": "Adjustments to reconcile net income to net cash from operating activities:" } } }, "localname": "AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited" ], "xbrltype": "stringItemType" }, "us-gaap_AdvancePaymentsByBorrowersForTaxesAndInsurance": { "auth_ref": [ "r414" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited": { "order": 6.0, "parentTag": "us-gaap_Liabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Carrying amount of accumulated prepayments received by financial institutions from borrowers for taxes (for example, property taxes) and insurance (for example, property and catastrophe) which will periodically be remitted to the appropriate governmental agency or vendor on behalf of the borrower.", "label": "Advance Payments by Borrowers for Taxes and Insurance", "terseLabel": "Advance payments from borrowers for taxes and insurance" } } }, "localname": "AdvancePaymentsByBorrowersForTaxesAndInsurance", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_AdvancesFromFederalHomeLoanBanks": { "auth_ref": [ "r440" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited": { "order": 2.0, "parentTag": "us-gaap_Liabilities", "weight": 1.0 } }, "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": "Advances from Federal Home Loan Banks", "terseLabel": "Borrowings" } } }, "localname": "AdvancesFromFederalHomeLoanBanks", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_AllocatedShareBasedCompensationExpense": { "auth_ref": [ "r251", "r279", "r288" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.", "label": "Share-based Payment Arrangement, Expense", "terseLabel": "Share-based compensation expense" } } }, "localname": "AllocatedShareBasedCompensationExpense", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationStockOptionsandRestrictedStockDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock": { "auth_ref": [ "r139", "r188" ], "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]", "terseLabel": "Allowance for Loan Losses and Recorded Investment in Loans by Portfolio Segment and Based on Impairment Method" } } }, "localname": "AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_AllowanceForLoanAndLeaseLossRecoveryOfBadDebts": { "auth_ref": [ "r136" ], "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": "Allowance for Loan and Lease Loss, Recovery of Bad Debts", "terseLabel": "Recoveries" } } }, "localname": "AllowanceForLoanAndLeaseLossRecoveryOfBadDebts", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansActivityinAllowanceforLoanLossesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AllowanceForLoanAndLeaseLossesRollForward": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.", "label": "Allowance for Loan and Lease Losses [Roll Forward]", "terseLabel": "Summary of activity in allowance for loan losses [Roll Forward]" } } }, "localname": "AllowanceForLoanAndLeaseLossesRollForward", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansActivityinAllowanceforLoanLossesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs": { "auth_ref": [ "r135" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss.", "label": "Allowance for Loan and Lease Losses, Write-offs", "negatedLabel": "Charge-offs" } } }, "localname": "AllowanceForLoanAndLeaseLossesWriteOffs", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansActivityinAllowanceforLoanLossesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AmortizationOfESOPAward": { "auth_ref": [ "r291" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Value of shares committed to be released under an Employee Stock Ownership Plan (ESOP).", "label": "Amortization of ESOP Award", "terseLabel": "Allocation of ESOP shares" } } }, "localname": "AmortizationOfESOPAward", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofStockholdersEquityunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount": { "auth_ref": [ "r106" ], "lang": { "en-US": { "role": { "documentation": "Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.", "label": "Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount", "terseLabel": "Anti-dilutive securities not included in computation of diluted earnings per common share (in shares)" } } }, "localname": "AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/EarningsPerCommonShareDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_Assets": { "auth_ref": [ "r77", "r118", "r121", "r127", "r185", "r306", "r310", "r331", "r405", "r443" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited": { "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": "Assets", "totalLabel": "Total assets" } } }, "localname": "Assets", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_AssetsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Assets [Abstract]", "terseLabel": "ASSETS" } } }, "localname": "AssetsAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited" ], "xbrltype": "stringItemType" }, "us-gaap_AssetsFairValueDisclosureAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Assets, Fair Value Disclosure [Abstract]", "terseLabel": "Balance of Assets Measured at Fair Value on Recurring or Nonrecurring Basis [Abstract]" } } }, "localname": "AssetsFairValueDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsScheduleofFairValueMeasuredonRecurringandNonrecurringBasisDetails" ], "xbrltype": "stringItemType" }, "us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax": { "auth_ref": [ "r168" ], "calculation": { "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofAFSSecuritiesandCorrespondingAmountsofGrossUnrealizedGainsAndLossesDetails": { "order": 3.0, "parentTag": "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis", "weight": -1.0 } }, "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": "Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax", "terseLabel": "Gross Unrealized Gains" } } }, "localname": "AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofAFSSecuritiesandCorrespondingAmountsofGrossUnrealizedGainsAndLossesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax": { "auth_ref": [ "r169" ], "calculation": { "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofAFSSecuritiesandCorrespondingAmountsofGrossUnrealizedGainsAndLossesDetails": { "order": 2.0, "parentTag": "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis", "weight": 1.0 } }, "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": "Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax", "negatedLabel": "Gross Unrealized Losses" } } }, "localname": "AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofAFSSecuritiesandCorrespondingAmountsofGrossUnrealizedGainsAndLossesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis": { "auth_ref": [ "r166", "r199" ], "calculation": { "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofAFSSecuritiesandCorrespondingAmountsofGrossUnrealizedGainsAndLossesDetails": { "order": null, "parentTag": null, "root": true, "weight": null }, "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofInvestmentsAvailableforSalebyContractualMaturityDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "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": "Debt Securities, Available-for-sale, Amortized Cost", "totalLabel": "Amortized Cost" } } }, "localname": "AvailableForSaleDebtSecuritiesAmortizedCostBasis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofAFSSecuritiesandCorrespondingAmountsofGrossUnrealizedGainsAndLossesDetails", "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofInvestmentsAvailableforSalebyContractualMaturityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleSecuritiesAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Debt Securities, Available-for-sale [Abstract]", "terseLabel": "Amortized cost and fair value of available-for-sale securities and gross unrealized gains and losses [Abstract]" } } }, "localname": "AvailableForSaleSecuritiesAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofAFSSecuritiesandCorrespondingAmountsofGrossUnrealizedGainsAndLossesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLossAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]", "verboseLabel": "Unrealized Loss" } } }, "localname": "AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLossAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/InvestmentsAggregateFairValueandGrossUnrealizedLossinContinuousUnrealizedLossPositionDetails" ], "xbrltype": "stringItemType" }, "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Available-for-sale Securities, Debt Maturities [Abstract]", "verboseLabel": "Amortized cost and fair value of mortgage-backed securities by contractual maturity [Abstract]" } } }, "localname": "AvailableForSaleSecuritiesDebtMaturitiesAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofInvestmentsAvailableforSalebyContractualMaturityDetails" ], "xbrltype": "stringItemType" }, "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Debt Securities, Available-for-sale, Amortized Cost, Fiscal Year Maturity [Abstract]", "terseLabel": "Amortized Cost" } } }, "localname": "AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofInvestmentsAvailableforSalebyContractualMaturityDetails" ], "xbrltype": "stringItemType" }, "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesFairValueAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]", "terseLabel": "Fair Value" } } }, "localname": "AvailableForSaleSecuritiesDebtMaturitiesFairValueAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofInvestmentsAvailableforSalebyContractualMaturityDetails" ], "xbrltype": "stringItemType" }, "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCostBasis": { "auth_ref": [], "calculation": { "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofInvestmentsAvailableforSalebyContractualMaturityDetails": { "order": 1.0, "parentTag": "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis", "weight": 1.0 } }, "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 rolling fiscal year following latest fiscal year. For interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.", "label": "Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Amortized Cost", "terseLabel": "Due within one year" } } }, "localname": "AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCostBasis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofInvestmentsAvailableforSalebyContractualMaturityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue": { "auth_ref": [], "calculation": { "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofInvestmentsAvailableforSalebyContractualMaturityDetails": { "order": 2.0, "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtSecurities", "weight": 1.0 } }, "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 rolling fiscal year following latest fiscal year. For interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.", "label": "Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Fair Value", "terseLabel": "Due within one year" } } }, "localname": "AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofInvestmentsAvailableforSalebyContractualMaturityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenAmortizedCostBasis": { "auth_ref": [], "calculation": { "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofInvestmentsAvailableforSalebyContractualMaturityDetails": { "order": 5.0, "parentTag": "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis", "weight": 1.0 } }, "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 rolling tenth fiscal year following latest fiscal year. For interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.", "label": "Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Amortized Cost", "terseLabel": "Due after ten years" } } }, "localname": "AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenAmortizedCostBasis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofInvestmentsAvailableforSalebyContractualMaturityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenFairValue": { "auth_ref": [], "calculation": { "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofInvestmentsAvailableforSalebyContractualMaturityDetails": { "order": 5.0, "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtSecurities", "weight": 1.0 } }, "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 rolling tenth fiscal year following latest fiscal year. For interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.", "label": "Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Fair Value", "terseLabel": "Due after ten years" } } }, "localname": "AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenFairValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofInvestmentsAvailableforSalebyContractualMaturityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenAmortizedCostBasis": { "auth_ref": [], "calculation": { "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofInvestmentsAvailableforSalebyContractualMaturityDetails": { "order": 3.0, "parentTag": "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis", "weight": 1.0 } }, "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 rolling sixth through tenth fiscal year following latest fiscal year. For interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.", "label": "Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after Five Through Ten Years, Amortized Cost", "terseLabel": "Due after five years through ten years" } } }, "localname": "AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenAmortizedCostBasis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofInvestmentsAvailableforSalebyContractualMaturityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue": { "auth_ref": [], "calculation": { "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofInvestmentsAvailableforSalebyContractualMaturityDetails": { "order": 1.0, "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtSecurities", "weight": 1.0 } }, "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 rolling sixth through tenth fiscal year following latest fiscal year. For interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.", "label": "Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after Five Through Ten Years, Fair Value", "terseLabel": "Due after five years through ten years" } } }, "localname": "AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofInvestmentsAvailableforSalebyContractualMaturityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveAmortizedCostBasis": { "auth_ref": [], "calculation": { "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofInvestmentsAvailableforSalebyContractualMaturityDetails": { "order": 4.0, "parentTag": "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis", "weight": 1.0 } }, "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 rolling fiscal year through fifth year following latest fiscal year. For interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.", "label": "Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Amortized Cost", "terseLabel": "Due after one year through five years" } } }, "localname": "AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveAmortizedCostBasis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofInvestmentsAvailableforSalebyContractualMaturityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue": { "auth_ref": [], "calculation": { "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofInvestmentsAvailableforSalebyContractualMaturityDetails": { "order": 3.0, "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtSecurities", "weight": 1.0 } }, "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 rolling fiscal year through fifth year following latest fiscal year. For interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.", "label": "Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Fair Value", "terseLabel": "Due after one year through five years" } } }, "localname": "AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofInvestmentsAvailableforSalebyContractualMaturityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost": { "auth_ref": [ "r171" ], "calculation": { "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofInvestmentsAvailableforSalebyContractualMaturityDetails": { "order": 2.0, "parentTag": "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis", "weight": 1.0 } }, "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), without single maturity date and not allocated over maturity grouping.", "label": "Debt Securities, Available-for-sale, Maturity, without Single Maturity Date, Amortized Cost", "terseLabel": "Mortgage-backed securities" } } }, "localname": "AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofInvestmentsAvailableforSalebyContractualMaturityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue": { "auth_ref": [ "r171" ], "calculation": { "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofInvestmentsAvailableforSalebyContractualMaturityDetails": { "order": 4.0, "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtSecurities", "weight": 1.0 } }, "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), without single maturity date and not allocated over maturity grouping.", "label": "Debt Securities, Available-for-sale, Maturity, without Single Maturity Date, Fair Value", "terseLabel": "Mortgage-backed securities" } } }, "localname": "AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofInvestmentsAvailableforSalebyContractualMaturityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleSecuritiesDebtSecurities": { "auth_ref": [ "r164", "r167", "r199", "r410" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited": { "order": 2.0, "parentTag": "us-gaap_Assets", "weight": 1.0 }, "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofAFSSecuritiesandCorrespondingAmountsofGrossUnrealizedGainsAndLossesDetails": { "order": 1.0, "parentTag": "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis", "weight": 1.0 }, "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofInvestmentsAvailableforSalebyContractualMaturityDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "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": "Debt Securities, Available-for-sale", "netLabel": "Available-for-sale securities, at fair value", "terseLabel": "Estimated Fair Value", "totalLabel": "Estimated Fair Value", "verboseLabel": "Available-for-sale securities" } } }, "localname": "AvailableForSaleSecuritiesDebtSecurities", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited", "http://soundcb.com/role/FairValueMeasurementsInformationaboutLevelinFairValueHierarchyforFinancialInstrumentsDetails", "http://soundcb.com/role/InvestmentsAggregateFairValueandGrossUnrealizedLossinContinuousUnrealizedLossPositionDetails", "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofAFSSecuritiesandCorrespondingAmountsofGrossUnrealizedGainsAndLossesDetails", "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofInvestmentsAvailableforSalebyContractualMaturityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AwardTypeAxis": { "auth_ref": [ "r252", "r281" ], "lang": { "en-US": { "role": { "documentation": "Information by type of award under share-based payment arrangement.", "label": "Award Type [Axis]", "terseLabel": "Award Type [Axis]" } } }, "localname": "AwardTypeAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationRestrictedStockAwardsDetails", "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails", "http://soundcb.com/role/StockbasedCompensationStockOptionsandRestrictedStockDetails" ], "xbrltype": "stringItemType" }, "us-gaap_BankOwnedLifeInsurance": { "auth_ref": [ "r404" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited": { "order": 7.0, "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", "terseLabel": "Bank-owned life insurance (\u201cBOLI\u201d), net" } } }, "localname": "BankOwnedLifeInsurance", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_BankOwnedLifeInsuranceIncome": { "auth_ref": [ "r428" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited": { "order": 2.0, "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": "Bank Owned Life Insurance Income", "terseLabel": "Earnings on cash surrender value of bank-owned life insurance" } } }, "localname": "BankOwnedLifeInsuranceIncome", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited", "http://soundcb.com/role/RevenuefromContractswithCustomersDetails" ], "xbrltype": "monetaryItemType" }, "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]", "terseLabel": "Basis of Presentation" } } }, "localname": "BasisOfAccountingPolicyPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/BasisofPresentationPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_BuildingMember": { "auth_ref": [ "r208" ], "lang": { "en-US": { "role": { "documentation": "Facility held for productive use including, but not limited to, office, production, storage and distribution facilities.", "label": "Building [Member]", "terseLabel": "Office leases" } } }, "localname": "BuildingMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LeasesScheduleofLeaseLiabilityMaturitiesDetails", "http://soundcb.com/role/LeasesSummaryofComponentsoftheLeasesandSupplementalCashFlowInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock": { "auth_ref": [ "r1", "r83", "r113" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for the business description and basis of presentation concepts. Business description describes the nature and type of organization including but not limited to organizational structure as may be applicable to holding companies, parent and subsidiary relationships, business divisions, business units, business segments, affiliates and information about significant ownership of the reporting entity. Basis of presentation describes the underlying basis used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS).", "label": "Business Description and Basis of Presentation [Text Block]", "verboseLabel": "Basis of Presentation" } } }, "localname": "BusinessDescriptionAndBasisOfPresentationTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/BasisofPresentation" ], "xbrltype": "textBlockItemType" }, "us-gaap_CarryingReportedAmountFairValueDisclosureMember": { "auth_ref": [ "r329", "r330" ], "lang": { "en-US": { "role": { "documentation": "Measured as reported on the statement of financial position (balance sheet).", "label": "Reported Value Measurement [Member]", "terseLabel": "Carrying Value" } } }, "localname": "CarryingReportedAmountFairValueDisclosureMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsInformationaboutLevelinFairValueHierarchyforFinancialInstrumentsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_CashAndCashEquivalentsAtCarryingValue": { "auth_ref": [ "r2", "r18", "r69" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited": { "order": 1.0, "parentTag": "us-gaap_Assets", "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. 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. Excludes cash and cash equivalents within disposal group and discontinued operation.", "label": "Cash and Cash Equivalents, at Carrying Value", "terseLabel": "Cash and cash equivalents" } } }, "localname": "CashAndCashEquivalentsAtCarryingValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited" ], "xbrltype": "monetaryItemType" }, "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": "Cash and Cash Equivalents, Fair Value Disclosure", "terseLabel": "Cash and cash equivalents" } } }, "localname": "CashAndCashEquivalentsFairValueDisclosure", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsInformationaboutLevelinFairValueHierarchyforFinancialInstrumentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents": { "auth_ref": [ "r63", "r69", "r75" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for 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": "Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents", "periodEndLabel": "Cash and cash equivalents, end of period", "periodStartLabel": "Cash and cash equivalents, beginning of period" } } }, "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect": { "auth_ref": [ "r63", "r332" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of increase (decrease) in cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; excluding 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": "Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect", "totalLabel": "Net change in cash and cash equivalents" } } }, "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_CommercialPortfolioSegmentMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Portfolio segment of the company's total financing receivables related to commercial receivables.", "label": "Commercial Portfolio Segment [Member]", "terseLabel": "Commercial business loans", "verboseLabel": "Commercial business" } } }, "localname": "CommercialPortfolioSegmentMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansActivityinAllowanceforLoanLossesDetails", "http://soundcb.com/role/LoansAllowanceforLoanLossesandRecordedInvestmentinLoansbyPortfolioSegmentandBasedonImpairmentMethodDetails", "http://soundcb.com/role/LoansCompositionofLoansDetails", "http://soundcb.com/role/LoansCreditQualityIndicatorsDetails", "http://soundcb.com/role/LoansCreditRiskProfileofLoanPortfolioBasedonPaymentActivitybyTypeofLoanDetails", "http://soundcb.com/role/LoansImpairedLoansIndividuallyEvaluatedDetails", "http://soundcb.com/role/LoansNonaccrualLoansandAgingofRecordedInvestmentinPastDueLoansDetails" ], "xbrltype": "domainItemType" }, "us-gaap_CommitmentsAndContingencies": { "auth_ref": [ "r26", "r213", "r416", "r449" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited": { "order": 3.0, "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", "terseLabel": "COMMITMENTS AND CONTINGENCIES (NOTE 7)" } } }, "localname": "CommitmentsAndContingencies", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_CommitmentsAndContingenciesDisclosureAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Commitments and Contingencies Disclosure [Abstract]", "terseLabel": "Commitments and Contingencies Disclosure [Abstract]" } } }, "localname": "CommitmentsAndContingenciesDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_CommitmentsAndContingenciesDisclosureTextBlock": { "auth_ref": [ "r210", "r211", "r212", "r214" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for commitments and contingencies.", "label": "Commitments and Contingencies Disclosure [Text Block]", "verboseLabel": "Commitments and Contingencies" } } }, "localname": "CommitmentsAndContingenciesDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CommitmentsandContingencies" ], "xbrltype": "textBlockItemType" }, "us-gaap_CommonStockDividendsPerShareCashPaid": { "auth_ref": [ "r218" ], "lang": { "en-US": { "role": { "documentation": "Aggregate dividends paid during the period for each share of common stock outstanding.", "label": "Common Stock, Dividends, Per Share, Cash Paid", "terseLabel": "Cash dividends paid on common stock (in dollars per share)" } } }, "localname": "CommonStockDividendsPerShareCashPaid", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofStockholdersEquityunauditedParenthetical" ], "xbrltype": "perShareItemType" }, "us-gaap_CommonStockDividendsPerShareDeclared": { "auth_ref": [ "r218" ], "lang": { "en-US": { "role": { "documentation": "Aggregate dividends declared during the period for each share of common stock outstanding.", "label": "Common Stock, Dividends, Per Share, Declared", "terseLabel": "Dividends declared (in dollars per share)" } } }, "localname": "CommonStockDividendsPerShareDeclared", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/SubsequentEventNarrativeDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_CommonStockMember": { "auth_ref": [ "r84", "r85" ], "lang": { "en-US": { "role": { "documentation": "Stock that is subordinate to all other stock of the issuer.", "label": "Common Stock [Member]", "terseLabel": "Common Stock" } } }, "localname": "CommonStockMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofStockholdersEquityunaudited" ], "xbrltype": "domainItemType" }, "us-gaap_CommonStockParOrStatedValuePerShare": { "auth_ref": [ "r11" ], "lang": { "en-US": { "role": { "documentation": "Face amount or stated value per share of common stock.", "label": "Common Stock, Par or Stated Value Per Share", "terseLabel": "Common stock, par value (in dollars per share)" } } }, "localname": "CommonStockParOrStatedValuePerShare", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunauditedParenthetical" ], "xbrltype": "perShareItemType" }, "us-gaap_CommonStockSharesAuthorized": { "auth_ref": [ "r11" ], "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", "terseLabel": "Common stock, shares authorized" } } }, "localname": "CommonStockSharesAuthorized", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunauditedParenthetical" ], "xbrltype": "sharesItemType" }, "us-gaap_CommonStockSharesIssued": { "auth_ref": [ "r11" ], "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", "terseLabel": "Common stock, shares issued" } } }, "localname": "CommonStockSharesIssued", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunauditedParenthetical" ], "xbrltype": "sharesItemType" }, "us-gaap_CommonStockSharesOutstanding": { "auth_ref": [ "r11", "r217" ], "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", "periodEndLabel": "Ending balance (in shares)", "periodStartLabel": "Beginning balance (in shares)", "terseLabel": "Common stock, shares outstanding" } } }, "localname": "CommonStockSharesOutstanding", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunauditedParenthetical", "http://soundcb.com/role/CondensedConsolidatedStatementsofStockholdersEquityunaudited" ], "xbrltype": "sharesItemType" }, "us-gaap_CommonStockValue": { "auth_ref": [ "r11" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited": { "order": 5.0, "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, Value, Issued", "verboseLabel": "Common stock, $0.01 par value, 40,000,000 shares authorized, 2,593,152 and 2,567,389 shares issued and outstanding as of June 30, 2020 and December 31, 2019, respectively" } } }, "localname": "CommonStockValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_ComprehensiveIncomeNetOfTax": { "auth_ref": [ "r41", "r43", "r44", "r47", "r419", "r452" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofComprehensiveIncomeunaudited": { "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": "Comprehensive Income (Loss), Net of Tax, Attributable to Parent", "totalLabel": "Comprehensive income" } } }, "localname": "ComprehensiveIncomeNetOfTax", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofComprehensiveIncomeunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_ConsumerPortfolioSegmentMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Portfolio segment of the company's total financing receivables related to consumer receivables.", "label": "Consumer Portfolio Segment [Member]", "terseLabel": "Consumer loans:" } } }, "localname": "ConsumerPortfolioSegmentMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansCompositionofLoansDetails" ], "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]", "terseLabel": "Credit Facility [Axis]" } } }, "localname": "CreditFacilityAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/BorrowingsandFHLBStockDetails" ], "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]", "terseLabel": "Credit Facility [Domain]" } } }, "localname": "CreditFacilityDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/BorrowingsandFHLBStockDetails" ], "xbrltype": "domainItemType" }, "us-gaap_DebtDisclosureAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Debt Disclosure [Abstract]", "terseLabel": "Debt Disclosure [Abstract]" } } }, "localname": "DebtDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_DebtDisclosureTextBlock": { "auth_ref": [ "r216" ], "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]", "verboseLabel": "Borrowings and FHLB Stock" } } }, "localname": "DebtDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/BorrowingsandFHLBStock" ], "xbrltype": "textBlockItemType" }, "us-gaap_DebtInstrumentAxis": { "auth_ref": [ "r7", "r8", "r9", "r407", "r408", "r441" ], "lang": { "en-US": { "role": { "documentation": "Information by type of debt instrument, including, but not limited to, draws against credit facilities.", "label": "Debt Instrument [Axis]", "terseLabel": "Debt Instrument [Axis]" } } }, "localname": "DebtInstrumentAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationEmployeeStockOwnershipPlanDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DebtInstrumentFairValue": { "auth_ref": [ "r328" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.", "label": "Debt Instrument, Fair Value Disclosure", "terseLabel": "FHLB and other Borrowings" } } }, "localname": "DebtInstrumentFairValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsInformationaboutLevelinFairValueHierarchyforFinancialInstrumentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtInstrumentNameDomain": { "auth_ref": [ "r25" ], "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]", "terseLabel": "Debt Instrument, Name [Domain]" } } }, "localname": "DebtInstrumentNameDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationEmployeeStockOwnershipPlanDetails" ], "xbrltype": "domainItemType" }, "us-gaap_DebtInstrumentTerm": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.", "label": "Debt Instrument, Term", "verboseLabel": "Term period" } } }, "localname": "DebtInstrumentTerm", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/BorrowingsandFHLBStockDetails" ], "xbrltype": "durationItemType" }, "us-gaap_DebtInstrumentUnusedBorrowingCapacityAmount": { "auth_ref": [ "r24" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of unused borrowing capacity under the long-term financing arrangement that is available to the entity as of the balance sheet date.", "label": "Debt Instrument, Unused Borrowing Capacity, Amount", "terseLabel": "Unused borrowing capacity" } } }, "localname": "DebtInstrumentUnusedBorrowingCapacityAmount", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/BorrowingsandFHLBStockDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtSecuritiesAvailableForSaleAccumulatedGrossUnrealizedGainLossBeforeTax": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount, before tax, of unrealized gain (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": "Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain (Loss), before Tax", "terseLabel": "Gross unrealized posisiton" } } }, "localname": "DebtSecuritiesAvailableForSaleAccumulatedGrossUnrealizedGainLossBeforeTax", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/InvestmentsAggregateFairValueandGrossUnrealizedLossinContinuousUnrealizedLossPositionDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger": { "auth_ref": [ "r178", "r204", "r207" ], "calculation": { "http://soundcb.com/role/InvestmentsAggregateFairValueandGrossUnrealizedLossinContinuousUnrealizedLossPositionDetails": { "order": 2.0, "parentTag": "us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPosition", "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), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.", "label": "Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer", "verboseLabel": "12 Months or Longer" } } }, "localname": "DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/InvestmentsAggregateFairValueandGrossUnrealizedLossinContinuousUnrealizedLossPositionDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss": { "auth_ref": [ "r178", "r204" ], "calculation": { "http://soundcb.com/role/InvestmentsAggregateFairValueandGrossUnrealizedLossinContinuousUnrealizedLossPositionDetails": { "order": 2.0, "parentTag": "us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss", "weight": 1.0 } }, "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": "Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss", "negatedLabel": "12 Months or Longer" } } }, "localname": "DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/InvestmentsAggregateFairValueandGrossUnrealizedLossinContinuousUnrealizedLossPositionDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerNumberOfPositions": { "auth_ref": [ "r202" ], "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 continuous unrealized loss position for 12 months or longer, without an allowance for credit loss. Includes beneficial interest in securitized financial asset.", "label": "Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions", "terseLabel": "Number of securities in unrealized loss position for more than 12 months" } } }, "localname": "DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerNumberOfPositions", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/InvestmentsAggregateFairValueandGrossUnrealizedLossinContinuousUnrealizedLossPositionDetails" ], "xbrltype": "integerItemType" }, "us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months": { "auth_ref": [ "r178", "r204", "r207" ], "calculation": { "http://soundcb.com/role/InvestmentsAggregateFairValueandGrossUnrealizedLossinContinuousUnrealizedLossPositionDetails": { "order": 1.0, "parentTag": "us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPosition", "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), in continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.", "label": "Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months", "verboseLabel": "Less Than 12 Months" } } }, "localname": "DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/InvestmentsAggregateFairValueandGrossUnrealizedLossinContinuousUnrealizedLossPositionDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss": { "auth_ref": [ "r178", "r204" ], "calculation": { "http://soundcb.com/role/InvestmentsAggregateFairValueandGrossUnrealizedLossinContinuousUnrealizedLossPositionDetails": { "order": 1.0, "parentTag": "us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss", "weight": 1.0 } }, "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": "Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss", "negatedLabel": "Less Than 12 Months" } } }, "localname": "DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/InvestmentsAggregateFairValueandGrossUnrealizedLossinContinuousUnrealizedLossPositionDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsNumberOfPositions": { "auth_ref": [ "r202" ], "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 continuous unrealized loss position for less than 12 months, without an allowance for credit loss. Includes beneficial interest in securitized financial asset.", "label": "Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions", "terseLabel": "Number of securities in unrealized loss position for less than 12 months" } } }, "localname": "DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsNumberOfPositions", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/InvestmentsAggregateFairValueandGrossUnrealizedLossinContinuousUnrealizedLossPositionDetails" ], "xbrltype": "integerItemType" }, "us-gaap_DebtSecuritiesAvailableForSaleRestricted": { "auth_ref": [ "r379" ], "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": "Debt Securities, Available-for-sale, Restricted", "terseLabel": "Pledged securities" } } }, "localname": "DebtSecuritiesAvailableForSaleRestricted", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofInvestmentsAvailableforSalebyContractualMaturityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPosition": { "auth_ref": [ "r175", "r200", "r207" ], "calculation": { "http://soundcb.com/role/InvestmentsAggregateFairValueandGrossUnrealizedLossinContinuousUnrealizedLossPositionDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "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": "Debt Securities, Available-for-sale, Unrealized Loss Position", "totalLabel": "Total" } } }, "localname": "DebtSecuritiesAvailableForSaleUnrealizedLossPosition", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/InvestmentsAggregateFairValueandGrossUnrealizedLossinContinuousUnrealizedLossPositionDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss": { "auth_ref": [ "r176", "r201" ], "calculation": { "http://soundcb.com/role/InvestmentsAggregateFairValueandGrossUnrealizedLossinContinuousUnrealizedLossPositionDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "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": "Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss", "negatedTotalLabel": "Total" } } }, "localname": "DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/InvestmentsAggregateFairValueandGrossUnrealizedLossinContinuousUnrealizedLossPositionDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionFairValueTableTextBlock": { "auth_ref": [ "r174", "r203", "r207" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of fair value 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. Includes beneficial interest in securitized financial asset.", "label": "Debt Securities, Available-for-sale, Unrealized Loss Position, Fair Value [Table Text Block]", "verboseLabel": "Aggregate Fair Value and Gross Unrealized Loss in Continuous Unrealized Loss Position" } } }, "localname": "DebtSecuritiesAvailableForSaleUnrealizedLossPositionFairValueTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/InvestmentsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_DeferredCompensationShareBasedPaymentsMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Deferred compensation arrangements (such as stock or unit options and share or unit awards) that are equity-based payments with individual employees. The arrangements are generally based on employment contracts between the entity and one or more selected officers or key employees, and contain a promise by the employer to pay certain amounts or benefits at designated future dates, upon compliance with stipulated requirements. This type of arrangement is distinguished from broader based employee benefit plans as it is usually tailored to the employee. Other \"sub-members\" can be added as necessary.", "label": "Deferred Compensation, Share-based Payments [Member]", "terseLabel": "Unearned ESOP Shares" } } }, "localname": "DeferredCompensationShareBasedPaymentsMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofStockholdersEquityunaudited" ], "xbrltype": "domainItemType" }, "us-gaap_Deposits": { "auth_ref": [ "r412" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited": { "order": 1.0, "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": "Deposits", "totalLabel": "Total deposits" } } }, "localname": "Deposits", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_DepositsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Deposits [Abstract]", "verboseLabel": "Deposits" } } }, "localname": "DepositsAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited" ], "xbrltype": "stringItemType" }, "us-gaap_DepreciationAmortizationAndAccretionNet": { "auth_ref": [ "r67" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited": { "order": 4.0, "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, Amortization and Accretion, Net", "terseLabel": "Depreciation and amortization" } } }, "localname": "DepreciationAmortizationAndAccretionNet", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_DisaggregationOfRevenueLineItems": { "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": "Disaggregation of Revenue [Line Items]", "terseLabel": "Disaggregation of Revenue [Line Items]" } } }, "localname": "DisaggregationOfRevenueLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/RevenuefromContractswithCustomersDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DisaggregationOfRevenueTable": { "auth_ref": [ "r228", "r230", "r231", "r232", "r233", "r234", "r235", "r236" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of information about 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]", "terseLabel": "Disaggregation of Revenue [Table]" } } }, "localname": "DisaggregationOfRevenueTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/RevenuefromContractswithCustomersDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DisaggregationOfRevenueTableTextBlock": { "auth_ref": [ "r228" ], "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]", "terseLabel": "Sources of Noninterest Income" } } }, "localname": "DisaggregationOfRevenueTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/RevenuefromContractswithCustomersTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock": { "auth_ref": [ "r298" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for share-based payment arrangement.", "label": "Share-based Payment Arrangement [Text Block]", "verboseLabel": "Stock-based Compensation" } } }, "localname": "DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensation" ], "xbrltype": "textBlockItemType" }, "us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Share-based Payment Arrangement [Abstract]", "terseLabel": "Share-based Payment Arrangement [Abstract]" } } }, "localname": "DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_DividendsCommonStockCash": { "auth_ref": [ "r218" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of paid and unpaid common stock dividends declared with the form of settlement in cash.", "label": "Dividends, Common Stock, Cash", "negatedLabel": "Cash dividends paid on common stock" } } }, "localname": "DividendsCommonStockCash", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofStockholdersEquityunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_DoubtfulMember": { "auth_ref": [ "r147", "r192" ], "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]", "terseLabel": "Doubtful" } } }, "localname": "DoubtfulMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansCreditQualityIndicatorsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_EarningsPerShareAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Earnings Per Share [Abstract]", "terseLabel": "Earnings per common share:" } } }, "localname": "EarningsPerShareAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited" ], "xbrltype": "stringItemType" }, "us-gaap_EarningsPerShareBasic": { "auth_ref": [ "r48", "r89", "r90", "r91", "r92", "r93", "r97", "r100", "r103", "r104", "r105", "r109", "r110", "r420", "r453" ], "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": "Earnings Per Share, Basic", "terseLabel": "Basic (in dollars per share)", "verboseLabel": "Earnings per share, basic (in dollars per share)" } } }, "localname": "EarningsPerShareBasic", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited", "http://soundcb.com/role/EarningsPerCommonShareDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_EarningsPerShareDiluted": { "auth_ref": [ "r48", "r89", "r90", "r91", "r92", "r93", "r100", "r103", "r104", "r105", "r109", "r110", "r420", "r453" ], "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": "Earnings Per Share, Diluted", "terseLabel": "Diluted (in dollars per share)", "verboseLabel": "Earnings per share, diluted (in dollars per share)" } } }, "localname": "EarningsPerShareDiluted", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited", "http://soundcb.com/role/EarningsPerCommonShareDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_EarningsPerShareTextBlock": { "auth_ref": [ "r106", "r107", "r108", "r111" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for earnings per share.", "label": "Earnings Per Share [Text Block]", "verboseLabel": "Earnings Per Common Share" } } }, "localname": "EarningsPerShareTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/EarningsPerCommonShare" ], "xbrltype": "textBlockItemType" }, "us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1": { "auth_ref": [ "r280" ], "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": "Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition", "terseLabel": "Remaining weighted-average vesting period" } } }, "localname": "EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationRestrictedStockAwardsDetails", "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails" ], "xbrltype": "durationItemType" }, "us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions": { "auth_ref": [ "r280" ], "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": "Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount", "terseLabel": "Unrecognized compensation cost" } } }, "localname": "EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationRestrictedStockAwardsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions": { "auth_ref": [ "r280" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of cost to be recognized for option under share-based payment arrangement.", "label": "Share-based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount", "terseLabel": "Unrecognized compensation cost" } } }, "localname": "EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_EmployeeStockOptionMember": { "auth_ref": [ "r278" ], "lang": { "en-US": { "role": { "documentation": "Share-based payment arrangement granting right, subject to vesting and other restrictions, to purchase or sell certain number of shares at predetermined price for specified period of time.", "label": "Share-based Payment Arrangement, Option [Member]", "terseLabel": "Stock Options" } } }, "localname": "EmployeeStockOptionMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails", "http://soundcb.com/role/StockbasedCompensationStockOptionsandRestrictedStockDetails" ], "xbrltype": "domainItemType" }, "us-gaap_EmployeeStockOwnershipPlanESOPCompensationExpense": { "auth_ref": [ "r294" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The amount of plan compensation cost recognized during the period.", "label": "Employee Stock Ownership Plan (ESOP), Compensation Expense", "terseLabel": "ESOP compensation expense" } } }, "localname": "EmployeeStockOwnershipPlanESOPCompensationExpense", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationEmployeeStockOwnershipPlanDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_EmployeeStockOwnershipPlanESOPDeferredSharesFairValue": { "auth_ref": [ "r296" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Fair value of unearned shares held by the employee stock ownership plan (ESOP).", "label": "Employee Stock Ownership Plan (ESOP), Deferred Shares, Fair Value", "terseLabel": "Fair value of shares held by ESOP trust" } } }, "localname": "EmployeeStockOwnershipPlanESOPDeferredSharesFairValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationEmployeeStockOwnershipPlanDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis": { "auth_ref": [ "r297" ], "lang": { "en-US": { "role": { "documentation": "Information by name of employee stock ownership plan.", "label": "Employee Stock Ownership Plan (ESOP) Name [Axis]", "terseLabel": "Employee Stock Ownership Plan (ESOP) Name [Axis]" } } }, "localname": "EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationEmployeeStockOwnershipPlanDetails" ], "xbrltype": "stringItemType" }, "us-gaap_EmployeeStockOwnershipPlanESOPDisclosuresLineItems": { "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": "Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]", "terseLabel": "Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]" } } }, "localname": "EmployeeStockOwnershipPlanESOPDisclosuresLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationEmployeeStockOwnershipPlanDetails" ], "xbrltype": "stringItemType" }, "us-gaap_EmployeeStockOwnershipPlanESOPNumberOfCommittedToBeReleasedShares": { "auth_ref": [ "r295" ], "lang": { "en-US": { "role": { "documentation": "The shares that, although not legally released, will be released by a future scheduled and committed debt service payment and will be allocated to employees for service rendered in the current accounting period. The ESOP documents typically define the period of service to which the shares relate. ESOP shares are released to compensate employees directly, to settle employer liabilities for other employee benefits, and to replace dividends on allocated shares that are used for debt service.", "label": "Employee Stock Ownership Plan (ESOP), Number of Committed-to-be-Released Shares", "terseLabel": "Committed to release (in shares)" } } }, "localname": "EmployeeStockOwnershipPlanESOPNumberOfCommittedToBeReleasedShares", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationEmployeeStockOwnershipPlanDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_EmployeeStockOwnershipPlanESOPNumberOfSuspenseShares": { "auth_ref": [ "r295" ], "lang": { "en-US": { "role": { "documentation": "Shares contributed to the ESOP that have not yet been released, committed to be released, or allocated to participant accounts. Suspense shares generally collateralize ESOP debt.", "label": "Employee Stock Ownership Plan (ESOP), Number of Suspense Shares", "terseLabel": "Unallocated shares (in shares)" } } }, "localname": "EmployeeStockOwnershipPlanESOPNumberOfSuspenseShares", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationEmployeeStockOwnershipPlanDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_EmployeeStockOwnershipPlanESOPPlanDomain": { "auth_ref": [ "r293" ], "lang": { "en-US": { "role": { "documentation": "Entities identify multiple employee stock ownership plans by unique name.", "label": "Employee Stock Ownership Plan (ESOP), Plan [Domain]", "terseLabel": "Employee Stock Ownership Plan (ESOP), Plan [Domain]" } } }, "localname": "EmployeeStockOwnershipPlanESOPPlanDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationEmployeeStockOwnershipPlanDetails" ], "xbrltype": "domainItemType" }, "us-gaap_EmployeeStockOwnershipPlanESOPSharesInESOP": { "auth_ref": [ "r295" ], "lang": { "en-US": { "role": { "documentation": "Sum of the allocated, committed-to-be-released and suspense shares of the entity held by the plan.", "label": "Employee Stock Ownership Plan (ESOP), Shares in ESOP", "terseLabel": "Number of common shares held by the trust (in shares)" } } }, "localname": "EmployeeStockOwnershipPlanESOPSharesInESOP", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationEmployeeStockOwnershipPlanDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_EquipmentMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Tangible personal property used to produce goods and services.", "label": "Equipment [Member]", "terseLabel": "Equipment leases" } } }, "localname": "EquipmentMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LeasesScheduleofLeaseLiabilityMaturitiesDetails", "http://soundcb.com/role/LeasesSummaryofComponentsoftheLeasesandSupplementalCashFlowInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_EquityComponentDomain": { "auth_ref": [ "r84", "r85", "r86", "r88", "r94", "r96", "r112", "r186", "r217", "r218", "r283", "r284", "r285", "r300", "r301", "r333", "r334", "r335", "r336", "r337", "r338", "r460", "r461", "r462" ], "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]", "terseLabel": "Equity Component [Domain]" } } }, "localname": "EquityComponentDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofStockholdersEquityunaudited" ], "xbrltype": "domainItemType" }, "us-gaap_EstimateOfFairValueFairValueDisclosureMember": { "auth_ref": [ "r328" ], "lang": { "en-US": { "role": { "documentation": "Measured as an estimate of fair value.", "label": "Estimate of Fair Value Measurement [Member]", "terseLabel": "Estimated Fair Value" } } }, "localname": "EstimateOfFairValueFairValueDisclosureMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsInformationaboutLevelinFairValueHierarchyforFinancialInstrumentsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems": { "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": "Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]", "terseLabel": "Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]" } } }, "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsScheduleofFairValueMeasuredonRecurringandNonrecurringBasisDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable": { "auth_ref": [ "r313", "r314", "r315", "r322" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of information about asset and liability measured at fair value on recurring and nonrecurring basis.", "label": "Fair Value, Recurring and Nonrecurring [Table]", "terseLabel": "Fair Value, Recurring and Nonrecurring [Table]" } } }, "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsScheduleofFairValueMeasuredonRecurringandNonrecurringBasisDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems": { "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": "Fair Value Measurement Inputs and Valuation Techniques [Line Items]", "terseLabel": "Fair Value Measurement Inputs and Valuation Techniques [Line Items]" } } }, "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsQuantitativeInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable": { "auth_ref": [ "r316" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of information about 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]", "terseLabel": "Fair Value Measurement Inputs and Valuation Techniques [Table]" } } }, "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsQuantitativeInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock": { "auth_ref": [ "r316" ], "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]", "terseLabel": "Quantitative Information" } } }, "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_FairValueAssetsMeasuredOnNonrecurringBasisTextBlock": { "auth_ref": [ "r313", "r314", "r316" ], "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]", "terseLabel": "Schedule of Fair Value Measured on Nonrecurring Basis" } } }, "localname": "FairValueAssetsMeasuredOnNonrecurringBasisTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock": { "auth_ref": [ "r313", "r314" ], "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]", "terseLabel": "Schedule of Fair Value Measured on Recurring Basis" } } }, "localname": "FairValueAssetsMeasuredOnRecurringBasisTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain": { "auth_ref": [ "r319" ], "lang": { "en-US": { "role": { "documentation": "Class of asset.", "label": "Asset Class [Domain]", "terseLabel": "Fair Value by Asset Class [Domain]" } } }, "localname": "FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsQuantitativeInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems": { "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": "Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]", "terseLabel": "Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]" } } }, "localname": "FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsInformationaboutLevelinFairValueHierarchyforFinancialInstrumentsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueByAssetClassAxis": { "auth_ref": [ "r313", "r322" ], "lang": { "en-US": { "role": { "documentation": "Information by class of asset.", "label": "Asset Class [Axis]", "terseLabel": "Asset Class [Axis]" } } }, "localname": "FairValueByAssetClassAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsQuantitativeInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueByBalanceSheetGroupingTable": { "auth_ref": [ "r313", "r329", "r330" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of information about 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]", "terseLabel": "Fair Value Hierarchy, Assets and Liabilities [Table]" } } }, "localname": "FairValueByBalanceSheetGroupingTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsInformationaboutLevelinFairValueHierarchyforFinancialInstrumentsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueByBalanceSheetGroupingTextBlock": { "auth_ref": [ "r313", "r329" ], "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]", "verboseLabel": "Information about Level in Fair Value Hierarchy for Financial Instruments" } } }, "localname": "FairValueByBalanceSheetGroupingTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_FairValueByFairValueHierarchyLevelAxis": { "auth_ref": [ "r239", "r240", "r241", "r242", "r243", "r244", "r245", "r246", "r314", "r366", "r367", "r368" ], "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]", "terseLabel": "Fair Value Hierarchy and NAV [Axis]" } } }, "localname": "FairValueByFairValueHierarchyLevelAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsInformationaboutLevelinFairValueHierarchyforFinancialInstrumentsDetails", "http://soundcb.com/role/FairValueMeasurementsQuantitativeInformationDetails", "http://soundcb.com/role/FairValueMeasurementsScheduleofFairValueMeasuredonRecurringandNonrecurringBasisDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueByMeasurementBasisAxis": { "auth_ref": [ "r313", "r323" ], "lang": { "en-US": { "role": { "documentation": "Information by measurement basis.", "label": "Measurement Basis [Axis]", "terseLabel": "Measurement Basis [Axis]" } } }, "localname": "FairValueByMeasurementBasisAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsInformationaboutLevelinFairValueHierarchyforFinancialInstrumentsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueByMeasurementFrequencyAxis": { "auth_ref": [ "r313", "r314", "r317", "r318", "r324" ], "lang": { "en-US": { "role": { "documentation": "Information by measurement frequency.", "label": "Measurement Frequency [Axis]", "terseLabel": "Measurement Frequency [Axis]" } } }, "localname": "FairValueByMeasurementFrequencyAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsQuantitativeInformationDetails", "http://soundcb.com/role/FairValueMeasurementsScheduleofFairValueMeasuredonRecurringandNonrecurringBasisDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueDisclosureItemAmountsDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Measurement basis, for example, but not limited to, reported value, fair value, portion at fair value, portion at other than fair value.", "label": "Fair Value Measurement [Domain]", "terseLabel": "Fair Value Measurement [Domain]" } } }, "localname": "FairValueDisclosureItemAmountsDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsInformationaboutLevelinFairValueHierarchyforFinancialInstrumentsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueDisclosuresAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Fair Value Disclosures [Abstract]", "terseLabel": "Fair Value Disclosures [Abstract]" } } }, "localname": "FairValueDisclosuresAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_FairValueDisclosuresTextBlock": { "auth_ref": [ "r321" ], "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]", "verboseLabel": "Fair Value Measurements" } } }, "localname": "FairValueDisclosuresTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurements" ], "xbrltype": "textBlockItemType" }, "us-gaap_FairValueInputsLevel1Member": { "auth_ref": [ "r239", "r240", "r245", "r246", "r314", "r366" ], "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]", "terseLabel": "Level 1" } } }, "localname": "FairValueInputsLevel1Member", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsInformationaboutLevelinFairValueHierarchyforFinancialInstrumentsDetails", "http://soundcb.com/role/FairValueMeasurementsScheduleofFairValueMeasuredonRecurringandNonrecurringBasisDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueInputsLevel2Member": { "auth_ref": [ "r239", "r240", "r245", "r246", "r314", "r367" ], "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]", "terseLabel": "Level 2" } } }, "localname": "FairValueInputsLevel2Member", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsInformationaboutLevelinFairValueHierarchyforFinancialInstrumentsDetails", "http://soundcb.com/role/FairValueMeasurementsScheduleofFairValueMeasuredonRecurringandNonrecurringBasisDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueInputsLevel3Member": { "auth_ref": [ "r239", "r240", "r241", "r242", "r243", "r244", "r245", "r246", "r314", "r368" ], "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]", "terseLabel": "Level 3" } } }, "localname": "FairValueInputsLevel3Member", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsInformationaboutLevelinFairValueHierarchyforFinancialInstrumentsDetails", "http://soundcb.com/role/FairValueMeasurementsQuantitativeInformationDetails", "http://soundcb.com/role/FairValueMeasurementsScheduleofFairValueMeasuredonRecurringandNonrecurringBasisDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueInputsQuantitativeInformationAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Fair Value Measurement Inputs and Valuation Techniques [Abstract]", "terseLabel": "Valuation Technique, Unobservable Input, and Qualitative Information about Unobservable Inputs [Abstract]" } } }, "localname": "FairValueInputsQuantitativeInformationAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsQuantitativeInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueMeasurementFrequencyDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Measurement frequency.", "label": "Measurement Frequency [Domain]", "terseLabel": "Measurement Frequency [Domain]" } } }, "localname": "FairValueMeasurementFrequencyDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsQuantitativeInformationDetails", "http://soundcb.com/role/FairValueMeasurementsScheduleofFairValueMeasuredonRecurringandNonrecurringBasisDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueMeasurementsFairValueHierarchyDomain": { "auth_ref": [ "r239", "r240", "r241", "r242", "r243", "r244", "r245", "r246", "r366", "r367", "r368" ], "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]", "terseLabel": "Fair Value Hierarchy and NAV [Domain]" } } }, "localname": "FairValueMeasurementsFairValueHierarchyDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsInformationaboutLevelinFairValueHierarchyforFinancialInstrumentsDetails", "http://soundcb.com/role/FairValueMeasurementsQuantitativeInformationDetails", "http://soundcb.com/role/FairValueMeasurementsScheduleofFairValueMeasuredonRecurringandNonrecurringBasisDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueMeasurementsNonrecurringMember": { "auth_ref": [ "r313", "r314", "r317", "r318", "r320", "r324" ], "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]", "terseLabel": "Nonrecurring" } } }, "localname": "FairValueMeasurementsNonrecurringMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsQuantitativeInformationDetails", "http://soundcb.com/role/FairValueMeasurementsScheduleofFairValueMeasuredonRecurringandNonrecurringBasisDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueMeasurementsRecurringMember": { "auth_ref": [ "r321", "r324" ], "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]", "terseLabel": "Recurring" } } }, "localname": "FairValueMeasurementsRecurringMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsQuantitativeInformationDetails", "http://soundcb.com/role/FairValueMeasurementsScheduleofFairValueMeasuredonRecurringandNonrecurringBasisDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueOfFinancialInstrumentsPolicy": { "auth_ref": [ "r76", "r325", "r327" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of accounting policy for determining the fair value of financial instruments.", "label": "Fair Value of Financial Instruments, Policy [Policy Text Block]", "terseLabel": "Fair Value Measurements" } } }, "localname": "FairValueOfFinancialInstrumentsPolicy", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/BasisofPresentationPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate": { "auth_ref": [ "r406" ], "lang": { "en-US": { "role": { "documentation": "Weighted average interest rate of advance from Federal Home Loan Bank (FHLBank) due 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": "Federal Home Loan Bank, Advance, Maturity, Average Interest Rate, Year One", "terseLabel": "Weighted average interest rate on borrowings due within one year" } } }, "localname": "FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/BorrowingsandFHLBStockDetails" ], "xbrltype": "percentItemType" }, "us-gaap_FederalHomeLoanBankStock": { "auth_ref": [ "r439" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited": { "order": 10.0, "parentTag": "us-gaap_Assets", "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": "Investment in FHLB stock", "verboseLabel": "Federal Home Loan Bank (\u201cFHLB\u201d) stock, at cost" } } }, "localname": "FederalHomeLoanBankStock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/BorrowingsandFHLBStockDetails", "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_FederalReserveBankAdvancesMember": { "auth_ref": [ "r413" ], "lang": { "en-US": { "role": { "documentation": "Borrowings from the Federal Reserve Bank, which are primarily used to cover shortages in the required reserve balance and also in times of liquidity shortages.", "label": "Federal Reserve Bank Advances [Member]", "verboseLabel": "Federal Reserve Bank" } } }, "localname": "FederalReserveBankAdvancesMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/BorrowingsandFHLBStockDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FinancialInstrumentAxis": { "auth_ref": [ "r172", "r173", "r187", "r188", "r189", "r191", "r192", "r203", "r205", "r206", "r207", "r363", "r364", "r365", "r366", "r367", "r368", "r369", "r370", "r371", "r373", "r374", "r375", "r376", "r377", "r380", "r386", "r387", "r388", "r389", "r390", "r391", "r392", "r393", "r394", "r395", "r396", "r397", "r398", "r399", "r400" ], "lang": { "en-US": { "role": { "documentation": "Information by type of financial instrument.", "label": "Financial Instrument [Axis]", "terseLabel": "Financial Instrument [Axis]" } } }, "localname": "FinancialInstrumentAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/InvestmentsAggregateFairValueandGrossUnrealizedLossinContinuousUnrealizedLossPositionDetails", "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofAFSSecuritiesandCorrespondingAmountsofGrossUnrealizedGainsAndLossesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FinancialInstrumentPerformanceStatusAxis": { "auth_ref": [ "r192" ], "lang": { "en-US": { "role": { "documentation": "Information by category of performance or non-performance status of financial instruments.", "label": "Financial Instrument Performance Status [Axis]", "terseLabel": "Financial Instrument Performance Status [Axis]" } } }, "localname": "FinancialInstrumentPerformanceStatusAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansCreditRiskProfileofLoanPortfolioBasedonPaymentActivitybyTypeofLoanDetails" ], "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]", "terseLabel": "Financial Instrument Performance Status [Domain]" } } }, "localname": "FinancialInstrumentPerformanceStatusDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansCreditRiskProfileofLoanPortfolioBasedonPaymentActivitybyTypeofLoanDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]", "terseLabel": "FINANCIAL ASSETS:" } } }, "localname": "FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsInformationaboutLevelinFairValueHierarchyforFinancialInstrumentsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]", "terseLabel": "FINANCIAL LIABILITIES:" } } }, "localname": "FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsInformationaboutLevelinFairValueHierarchyforFinancialInstrumentsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FinancingReceivableAllowanceForCreditLossAdditionalInformationAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]", "terseLabel": "Allowance for loan losses and unpaid principal balance in loans, net of partial charge-offs by portfolio segment [Abstract]" } } }, "localname": "FinancingReceivableAllowanceForCreditLossAdditionalInformationAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansAllowanceforLoanLossesandRecordedInvestmentinLoansbyPortfolioSegmentandBasedonImpairmentMethodDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment": { "auth_ref": [ "r137" ], "calculation": { "http://soundcb.com/role/LoansAllowanceforLoanLossesandRecordedInvestmentinLoansbyPortfolioSegmentandBasedonImpairmentMethodDetails": { "order": 1.0, "parentTag": "us-gaap_LoansAndLeasesReceivableAllowance", "weight": 1.0 } }, "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": "Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment", "terseLabel": "Allowance: Collectively evaluated for impairment" } } }, "localname": "FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansAllowanceforLoanLossesandRecordedInvestmentinLoansbyPortfolioSegmentandBasedonImpairmentMethodDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1": { "auth_ref": [ "r137" ], "calculation": { "http://soundcb.com/role/LoansAllowanceforLoanLossesandRecordedInvestmentinLoansbyPortfolioSegmentandBasedonImpairmentMethodDetails": { "order": 2.0, "parentTag": "us-gaap_LoansAndLeasesReceivableAllowance", "weight": 1.0 } }, "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": "Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment", "terseLabel": "Allowance: Individually evaluated for impairment" } } }, "localname": "FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansAllowanceforLoanLossesandRecordedInvestmentinLoansbyPortfolioSegmentandBasedonImpairmentMethodDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems": { "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": "Financing Receivable, Allowance for Credit Loss [Line Items]", "terseLabel": "Financing Receivable, Allowance For Credit Losses [Line Items]" } } }, "localname": "FinancingReceivableAllowanceForCreditLossesLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansActivityinAllowanceforLoanLossesDetails", "http://soundcb.com/role/LoansAllowanceforLoanLossesandRecordedInvestmentinLoansbyPortfolioSegmentandBasedonImpairmentMethodDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment": { "auth_ref": [ "r138" ], "calculation": { "http://soundcb.com/role/LoansAllowanceforLoanLossesandRecordedInvestmentinLoansbyPortfolioSegmentandBasedonImpairmentMethodDetails": { "order": 1.0, "parentTag": "us-gaap_LoansAndLeasesReceivableGrossCarryingAmount", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The balance of financing receivables that were collectively evaluated for impairment.", "label": "Financing Receivable, Collectively Evaluated for Impairment", "verboseLabel": "Loans held for investment: Collectively evaluated for impairment" } } }, "localname": "FinancingReceivableCollectivelyEvaluatedForImpairment", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansAllowanceforLoanLossesandRecordedInvestmentinLoansbyPortfolioSegmentandBasedonImpairmentMethodDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivableCreditQualityIndicatorsTableTextBlock": { "auth_ref": [ "r147", "r192" ], "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]", "terseLabel": "Credit Quality Indicators" } } }, "localname": "FinancingReceivableCreditQualityIndicatorsTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_FinancingReceivableImpairedLineItems": { "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": "Financing Receivable, Impaired [Line Items]", "terseLabel": "Financing Receivable, Impaired [Line Items]" } } }, "localname": "FinancingReceivableImpairedLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansImpairedLoansIndividuallyEvaluatedDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment": { "auth_ref": [ "r138" ], "calculation": { "http://soundcb.com/role/LoansAllowanceforLoanLossesandRecordedInvestmentinLoansbyPortfolioSegmentandBasedonImpairmentMethodDetails": { "order": 2.0, "parentTag": "us-gaap_LoansAndLeasesReceivableGrossCarryingAmount", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The balance of financing receivables that were individually evaluated for impairment.", "label": "Financing Receivable, Individually Evaluated for Impairment", "verboseLabel": "Loans held for investment: Individually evaluated for impairment" } } }, "localname": "FinancingReceivableIndividuallyEvaluatedForImpairment", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansAllowanceforLoanLossesandRecordedInvestmentinLoansbyPortfolioSegmentandBasedonImpairmentMethodDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivableModificationsNumberOfContracts2": { "auth_ref": [ "r149" ], "lang": { "en-US": { "role": { "documentation": "Number of financing receivables that have been modified by troubled debt restructurings.", "label": "Financing Receivable, Modifications, Number of Contracts", "terseLabel": "Number of loans modified as TDRs" } } }, "localname": "FinancingReceivableModificationsNumberOfContracts2", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansTroubledDebtRestructuringsDetails" ], "xbrltype": "integerItemType" }, "us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2": { "auth_ref": [ "r149" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount, after troubled debt restructuring, of modified financing receivable.", "label": "Financing Receivable, Troubled Debt Restructuring, Postmodification", "terseLabel": "Total modifications" } } }, "localname": "FinancingReceivableModificationsPostModificationRecordedInvestment2", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansTroubledDebtRestructuringsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivableModificationsRecordedInvestment": { "auth_ref": [ "r149", "r163" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of financing receivable modified as troubled debt restructuring.", "label": "Financing Receivable, Troubled Debt Restructuring", "terseLabel": "Loans classified as TDRs" } } }, "localname": "FinancingReceivableModificationsRecordedInvestment", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansTroubledDebtRestructuringsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1": { "auth_ref": [ "r151" ], "lang": { "en-US": { "role": { "documentation": "Number of financing receivable contracts modified as troubled debt restructuring within previous 12 months, with subsequent payment default.", "label": "Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts", "terseLabel": "Number of loans for which there was payment default within first 12 months of modification" } } }, "localname": "FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansTroubledDebtRestructuringsDetails" ], "xbrltype": "integerItemType" }, "us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1": { "auth_ref": [ "r150" ], "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": "Financing Receivable, Troubled Debt Restructuring, Subsequent Default", "terseLabel": "Payment default within first 12 months of modification, recorded investment" } } }, "localname": "FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansTroubledDebtRestructuringsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivablePortfolioSegmentAxis": { "auth_ref": [ "r187", "r188", "r193" ], "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]", "terseLabel": "Financing Receivable Portfolio Segment [Axis]" } } }, "localname": "FinancingReceivablePortfolioSegmentAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansActivityinAllowanceforLoanLossesDetails", "http://soundcb.com/role/LoansAllowanceforLoanLossesandRecordedInvestmentinLoansbyPortfolioSegmentandBasedonImpairmentMethodDetails", "http://soundcb.com/role/LoansCompositionofLoansDetails", "http://soundcb.com/role/LoansCreditQualityIndicatorsDetails", "http://soundcb.com/role/LoansCreditRiskProfileofLoanPortfolioBasedonPaymentActivitybyTypeofLoanDetails", "http://soundcb.com/role/LoansImpairedLoansIndividuallyEvaluatedDetails", "http://soundcb.com/role/LoansNonaccrualLoansandAgingofRecordedInvestmentinPastDueLoansDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FinancingReceivablePortfolioSegmentDomain": { "auth_ref": [], "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]", "terseLabel": "Financing Receivable Portfolio Segment [Domain]" } } }, "localname": "FinancingReceivablePortfolioSegmentDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansActivityinAllowanceforLoanLossesDetails", "http://soundcb.com/role/LoansAllowanceforLoanLossesandRecordedInvestmentinLoansbyPortfolioSegmentandBasedonImpairmentMethodDetails", "http://soundcb.com/role/LoansCompositionofLoansDetails", "http://soundcb.com/role/LoansCreditQualityIndicatorsDetails", "http://soundcb.com/role/LoansCreditRiskProfileofLoanPortfolioBasedonPaymentActivitybyTypeofLoanDetails", "http://soundcb.com/role/LoansImpairedLoansIndividuallyEvaluatedDetails", "http://soundcb.com/role/LoansNonaccrualLoansandAgingofRecordedInvestmentinPastDueLoansDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FinancingReceivableRecordedInvestmentAgingAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Financing Receivable, Recorded Investment, Aging [Abstract]", "terseLabel": "Nonaccrual and Past Due Loans [Abstract]" } } }, "localname": "FinancingReceivableRecordedInvestmentAgingAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansNonaccrualLoansandAgingofRecordedInvestmentinPastDueLoansDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis": { "auth_ref": [ "r148", "r155", "r156", "r189", "r191", "r192", "r194", "r195", "r197", "r198" ], "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]", "terseLabel": "Class of Financing Receivable [Axis]" } } }, "localname": "FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/BorrowingsandFHLBStockDetails", "http://soundcb.com/role/LoansActivityinAllowanceforLoanLossesDetails", "http://soundcb.com/role/LoansAllowanceforLoanLossesandRecordedInvestmentinLoansbyPortfolioSegmentandBasedonImpairmentMethodDetails", "http://soundcb.com/role/LoansCompositionofLoansDetails", "http://soundcb.com/role/LoansCreditQualityIndicatorsDetails", "http://soundcb.com/role/LoansCreditRiskProfileofLoanPortfolioBasedonPaymentActivitybyTypeofLoanDetails", "http://soundcb.com/role/LoansImpairedLoansIndividuallyEvaluatedDetails", "http://soundcb.com/role/LoansNonaccrualLoansandAgingofRecordedInvestmentinPastDueLoansDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain": { "auth_ref": [], "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]", "terseLabel": "Class of Financing Receivable [Domain]" } } }, "localname": "FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/BorrowingsandFHLBStockDetails", "http://soundcb.com/role/LoansActivityinAllowanceforLoanLossesDetails", "http://soundcb.com/role/LoansAllowanceforLoanLossesandRecordedInvestmentinLoansbyPortfolioSegmentandBasedonImpairmentMethodDetails", "http://soundcb.com/role/LoansCompositionofLoansDetails", "http://soundcb.com/role/LoansCreditQualityIndicatorsDetails", "http://soundcb.com/role/LoansCreditRiskProfileofLoanPortfolioBasedonPaymentActivitybyTypeofLoanDetails", "http://soundcb.com/role/LoansImpairedLoansIndividuallyEvaluatedDetails", "http://soundcb.com/role/LoansNonaccrualLoansandAgingofRecordedInvestmentinPastDueLoansDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FinancingReceivableRecordedInvestmentCurrent": { "auth_ref": [ "r156", "r189", "r198" ], "calculation": { "http://soundcb.com/role/LoansNonaccrualLoansandAgingofRecordedInvestmentinPastDueLoansDetails": { "order": 2.0, "parentTag": "us-gaap_LoansAndLeasesReceivableGrossCarryingAmount", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of financing receivable not past due.", "label": "Financing Receivable, Not Past Due", "terseLabel": "Current" } } }, "localname": "FinancingReceivableRecordedInvestmentCurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansNonaccrualLoansandAgingofRecordedInvestmentinPastDueLoansDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivableRecordedInvestmentLineItems": { "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": "Financing Receivable, Credit Quality Indicator [Line Items]", "terseLabel": "Financing Receivable, Credit Quality Indicator [Line Items]" } } }, "localname": "FinancingReceivableRecordedInvestmentLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansCreditQualityIndicatorsDetails", "http://soundcb.com/role/LoansCreditRiskProfileofLoanPortfolioBasedonPaymentActivitybyTypeofLoanDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus": { "auth_ref": [ "r154", "r190" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of financing receivable on nonaccrual status.", "label": "Financing Receivable, Nonaccrual", "terseLabel": "Nonaccrual loans" } } }, "localname": "FinancingReceivableRecordedInvestmentNonaccrualStatus", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansNonaccrualLoansandAgingofRecordedInvestmentinPastDueLoansDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivableRecordedInvestmentPastDue": { "auth_ref": [ "r156", "r189", "r198" ], "calculation": { "http://soundcb.com/role/LoansNonaccrualLoansandAgingofRecordedInvestmentinPastDueLoansDetails": { "order": 1.0, "parentTag": "us-gaap_LoansAndLeasesReceivableGrossCarryingAmount", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of financing receivable past due.", "label": "Financing Receivable, Past Due", "verboseLabel": "Total Past Due" } } }, "localname": "FinancingReceivableRecordedInvestmentPastDue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansNonaccrualLoansandAgingofRecordedInvestmentinPastDueLoansDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems": { "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": "Financing Receivable, Past Due [Line Items]", "terseLabel": "Financing Receivable, Past Due [Line Items]" } } }, "localname": "FinancingReceivableRecordedInvestmentPastDueLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansNonaccrualLoansandAgingofRecordedInvestmentinPastDueLoansDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FinancingReceivables30To59DaysPastDueMember": { "auth_ref": [ "r198" ], "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]", "verboseLabel": "30-59 Days Past Due" } } }, "localname": "FinancingReceivables30To59DaysPastDueMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansNonaccrualLoansandAgingofRecordedInvestmentinPastDueLoansDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FinancingReceivables60To89DaysPastDueMember": { "auth_ref": [ "r198" ], "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]", "verboseLabel": "60-89 Days Past Due" } } }, "localname": "FinancingReceivables60To89DaysPastDueMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansNonaccrualLoansandAgingofRecordedInvestmentinPastDueLoansDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember": { "auth_ref": [ "r198" ], "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]", "verboseLabel": "90 Days and Greater Past Due" } } }, "localname": "FinancingReceivablesEqualToGreaterThan90DaysPastDueMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansNonaccrualLoansandAgingofRecordedInvestmentinPastDueLoansDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FinancingReceivablesPeriodPastDueAxis": { "auth_ref": [ "r189", "r198" ], "lang": { "en-US": { "role": { "documentation": "Information by time period financial asset is past due.", "label": "Financial Asset, Period Past Due [Axis]", "terseLabel": "Financial Asset, Period Past Due [Axis]" } } }, "localname": "FinancingReceivablesPeriodPastDueAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansNonaccrualLoansandAgingofRecordedInvestmentinPastDueLoansDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FinancingReceivablesPeriodPastDueDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Period in which financial asset is 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, Period Past Due [Domain]", "terseLabel": "Financial Asset, Period Past Due [Domain]" } } }, "localname": "FinancingReceivablesPeriodPastDueDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansNonaccrualLoansandAgingofRecordedInvestmentinPastDueLoansDetails" ], "xbrltype": "domainItemType" }, "us-gaap_GainLossOnSalesOfLoansNet": { "auth_ref": [ "r67", "r427", "r455" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited": { "order": 5.0, "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": "Gain (Loss) on Sales of Loans, Net", "terseLabel": "Net gain on sale of loans" } } }, "localname": "GainLossOnSalesOfLoansNet", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited", "http://soundcb.com/role/RevenuefromContractswithCustomersDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_GainsLossesOnSalesOfOtherRealEstate": { "auth_ref": [ "r430" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited": { "order": 14.0, "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": "Gains (Losses) on Sales of Other Real Estate", "negatedLabel": "Net loss on OREO and repossessed assets", "negatedTerseLabel": "Loss on sale of OREO" } } }, "localname": "GainsLossesOnSalesOfOtherRealEstate", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited", "http://soundcb.com/role/RevenuefromContractswithCustomersDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_HomeEquityMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Revolving, open-end loan extended under a line of credit and secured by the borrower's residential property.", "label": "Home Equity Line of Credit [Member]", "terseLabel": "Home equity" } } }, "localname": "HomeEquityMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/BorrowingsandFHLBStockDetails", "http://soundcb.com/role/LoansActivityinAllowanceforLoanLossesDetails", "http://soundcb.com/role/LoansAllowanceforLoanLossesandRecordedInvestmentinLoansbyPortfolioSegmentandBasedonImpairmentMethodDetails", "http://soundcb.com/role/LoansCompositionofLoansDetails", "http://soundcb.com/role/LoansCreditQualityIndicatorsDetails", "http://soundcb.com/role/LoansCreditRiskProfileofLoanPortfolioBasedonPaymentActivitybyTypeofLoanDetails", "http://soundcb.com/role/LoansImpairedLoansIndividuallyEvaluatedDetails", "http://soundcb.com/role/LoansNonaccrualLoansandAgingofRecordedInvestmentinPastDueLoansDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment": { "auth_ref": [ "r143", "r146" ], "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 Financing Receivable, Average Recorded Investment", "terseLabel": "Average Recorded Investment" } } }, "localname": "ImpairedFinancingReceivableAverageRecordedInvestment", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansImpairedLoansIndividuallyEvaluatedDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod": { "auth_ref": [ "r144" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of interest income recognized that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired.", "label": "Impaired Financing Receivable, Interest Income, Accrual Method", "terseLabel": "Interest Income Recognized" } } }, "localname": "ImpairedFinancingReceivableInterestIncomeAccrualMethod", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansImpairedLoansIndividuallyEvaluatedDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ImpairedFinancingReceivableRecordedInvestment": { "auth_ref": [ "r140" ], "calculation": { "http://soundcb.com/role/LoansImpairedLoansIndividuallyEvaluatedDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "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 Financing Receivable, Recorded Investment", "totalLabel": "Total Recorded Investment" } } }, "localname": "ImpairedFinancingReceivableRecordedInvestment", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansImpairedLoansIndividuallyEvaluatedDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ImpairedFinancingReceivableRelatedAllowance": { "auth_ref": [ "r141" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of allowance for credit losses related to recorded investment.", "label": "Impaired Financing Receivable, Related Allowance", "terseLabel": "Related Allowance" } } }, "localname": "ImpairedFinancingReceivableRelatedAllowance", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansImpairedLoansIndividuallyEvaluatedDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance": { "auth_ref": [ "r142" ], "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 Financing Receivable, Unpaid Principal Balance", "terseLabel": "Unpaid Principal Balance" } } }, "localname": "ImpairedFinancingReceivableUnpaidPrincipalBalance", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansImpairedLoansIndividuallyEvaluatedDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment": { "auth_ref": [ "r140" ], "calculation": { "http://soundcb.com/role/LoansImpairedLoansIndividuallyEvaluatedDetails": { "order": 1.0, "parentTag": "us-gaap_ImpairedFinancingReceivableRecordedInvestment", "weight": 1.0 } }, "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 Financing Receivable, with No Related Allowance, Recorded Investment", "terseLabel": "Recorder Investment - Without Allowance" } } }, "localname": "ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansImpairedLoansIndividuallyEvaluatedDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment": { "auth_ref": [ "r140" ], "calculation": { "http://soundcb.com/role/LoansImpairedLoansIndividuallyEvaluatedDetails": { "order": 2.0, "parentTag": "us-gaap_ImpairedFinancingReceivableRecordedInvestment", "weight": 1.0 } }, "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 Financing Receivable, with Related Allowance, Recorded Investment", "terseLabel": "Recorder Investment - With Allowance" } } }, "localname": "ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansImpairedLoansIndividuallyEvaluatedDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ImpairedFinancingReceivablesTableTextBlock": { "auth_ref": [ "r145" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of impaired financing receivables.", "label": "Impaired Financing Receivables [Table Text Block]", "terseLabel": "Impaired Loans, Individually Evaluated" } } }, "localname": "ImpairedFinancingReceivablesTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments": { "auth_ref": [ "r81", "r118", "r120", "r123", "r126", "r128" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited": { "order": 2.0, "parentTag": "us-gaap_NetIncomeLoss", "weight": 1.0 } }, "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": "Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest", "totalLabel": "Income before provision for income taxes" } } }, "localname": "IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeStatementAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Income Statement [Abstract]", "terseLabel": "Income Statement [Abstract]" } } }, "localname": "IncomeStatementAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_IncomeTaxExpenseBenefit": { "auth_ref": [ "r78", "r95", "r96", "r117", "r299", "r302", "r303", "r454" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited": { "order": 1.0, "parentTag": "us-gaap_NetIncomeLoss", "weight": -1.0 } }, "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 (Benefit)", "terseLabel": "Provision for income taxes" } } }, "localname": "IncomeTaxExpenseBenefit", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeTaxesPaidNet": { "auth_ref": [ "r71" ], "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 Paid, Net", "terseLabel": "Cash paid for income taxes" } } }, "localname": "IncomeTaxesPaidNet", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInAccruedInterestReceivableNet": { "auth_ref": [ "r66" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited": { "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": "Increase (Decrease) in Accrued Interest Receivable, Net", "negatedLabel": "Accrued interest receivable" } } }, "localname": "IncreaseDecreaseInAccruedInterestReceivableNet", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInDeposits": { "auth_ref": [ "r70", "r435" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited": { "order": 1.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The net cash inflow or outflow for the increase (decrease) in the beginning and end of period deposits balances.", "label": "Increase (Decrease) in Deposits", "terseLabel": "Net increase in deposits" } } }, "localname": "IncreaseDecreaseInDeposits", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInInterestPayableNet": { "auth_ref": [ "r66" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited": { "order": 17.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The increase (decrease) during the reporting period in interest payable, which represents the amount owed to note holders, bond holders, and other parties for interest earned on loans or credit extended to the reporting entity.", "label": "Increase (Decrease) in Interest Payable, Net", "verboseLabel": "Accrued interest payable" } } }, "localname": "IncreaseDecreaseInInterestPayableNet", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInOperatingCapitalAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Increase (Decrease) in Operating Capital [Abstract]", "terseLabel": "Change in operating assets and liabilities:" } } }, "localname": "IncreaseDecreaseInOperatingCapitalAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited" ], "xbrltype": "stringItemType" }, "us-gaap_IncreaseDecreaseInOtherOperatingAssets": { "auth_ref": [ "r66" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited": { "order": 16.0, "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": "Increase (Decrease) in Other Operating Assets", "negatedLabel": "Other assets" } } }, "localname": "IncreaseDecreaseInOtherOperatingAssets", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInOtherOperatingLiabilities": { "auth_ref": [ "r66" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited": { "order": 18.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of increase (decrease) in operating liabilities classified as other.", "label": "Increase (Decrease) in Other Operating Liabilities", "verboseLabel": "Other liabilities" } } }, "localname": "IncreaseDecreaseInOtherOperatingLiabilities", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInStockholdersEquityRollForward": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.", "label": "Increase (Decrease) in Stockholders' Equity [Roll Forward]", "terseLabel": "Increase (Decrease) in Stockholders' Equity [Roll Forward]" } } }, "localname": "IncreaseDecreaseInStockholdersEquityRollForward", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofStockholdersEquityunaudited" ], "xbrltype": "stringItemType" }, "us-gaap_InformationTechnologyAndDataProcessing": { "auth_ref": [ "r51" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited": { "order": 2.0, "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": "Information Technology and Data Processing", "terseLabel": "Data processing" } } }, "localname": "InformationTechnologyAndDataProcessing", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestAndDividendIncomeOperating": { "auth_ref": [ "r422" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited": { "order": 2.0, "parentTag": "us-gaap_InterestIncomeExpenseNet", "weight": 1.0 } }, "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": "Interest and Dividend Income, Operating", "totalLabel": "Total interest income" } } }, "localname": "InterestAndDividendIncomeOperating", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestAndDividendIncomeOperatingAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Interest and Dividend Income, Operating [Abstract]", "terseLabel": "INTEREST INCOME" } } }, "localname": "InterestAndDividendIncomeOperatingAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited" ], "xbrltype": "stringItemType" }, "us-gaap_InterestAndDividendIncomeSecurities": { "auth_ref": [], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited": { "order": 1.0, "parentTag": "us-gaap_InterestAndDividendIncomeOperating", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of operating dividend and interest income, including amortization and accretion of premiums and discounts, on securities.", "label": "Interest and Dividend Income, Securities, Operating", "terseLabel": "Interest and dividends on investments, cash and cash equivalents" } } }, "localname": "InterestAndDividendIncomeSecurities", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestAndFeeIncomeLoansAndLeases": { "auth_ref": [ "r421" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited": { "order": 2.0, "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 Fee Income, Loans and Leases", "terseLabel": "Loans, including fees" } } }, "localname": "InterestAndFeeIncomeLoansAndLeases", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestBearingDepositLiabilities": { "auth_ref": [ "r412" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited": { "order": 2.0, "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": "Interest-bearing Deposit Liabilities", "terseLabel": "Interest-bearing" } } }, "localname": "InterestBearingDepositLiabilities", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestExpense": { "auth_ref": [ "r45", "r116", "r340", "r341", "r434" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited": { "order": 1.0, "parentTag": "us-gaap_InterestIncomeExpenseNet", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of the cost of borrowed funds accounted for as interest expense.", "label": "Interest Expense", "totalLabel": "Total interest expense" } } }, "localname": "InterestExpense", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestExpenseAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Interest Expense [Abstract]", "terseLabel": "INTEREST EXPENSE" } } }, "localname": "InterestExpenseAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited" ], "xbrltype": "stringItemType" }, "us-gaap_InterestExpenseBorrowings": { "auth_ref": [ "r433" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited": { "order": 1.0, "parentTag": "us-gaap_InterestExpense", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Aggregate amount of interest expense on all borrowings.", "label": "Interest Expense, Borrowings", "terseLabel": "Borrowings" } } }, "localname": "InterestExpenseBorrowings", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestExpenseDeposits": { "auth_ref": [ "r432" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited": { "order": 2.0, "parentTag": "us-gaap_InterestExpense", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Aggregate amount of interest expense on all deposits.", "label": "Interest Expense, Deposits", "verboseLabel": "Deposits" } } }, "localname": "InterestExpenseDeposits", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss": { "auth_ref": [ "r425" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited": { "order": 3.0, "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments", "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": "Interest Income (Expense), after Provision for Loan Loss", "totalLabel": "Net interest income after provision (recapture) for loan losses" } } }, "localname": "InterestIncomeExpenseAfterProvisionForLoanLoss", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestIncomeExpenseNet": { "auth_ref": [ "r423" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited": { "order": 2.0, "parentTag": "us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The net amount of operating interest income (expense).", "label": "Interest Income (Expense), Net", "totalLabel": "Net interest income" } } }, "localname": "InterestIncomeExpenseNet", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestPaidNet": { "auth_ref": [ "r61", "r64", "r71" ], "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 Paid, Excluding Capitalized Interest, Operating Activities", "terseLabel": "Interest paid on deposits and borrowings" } } }, "localname": "InterestPaidNet", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestPayableCurrentAndNoncurrent": { "auth_ref": [ "r414", "r450" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited": { "order": 3.0, "parentTag": "us-gaap_Liabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of interest payable on debt, including, but not limited to, trade payables.", "label": "Interest Payable", "terseLabel": "Accrued interest payable" } } }, "localname": "InterestPayableCurrentAndNoncurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestReceivable": { "auth_ref": [ "r29" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited": { "order": 6.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "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": "Interest Receivable", "terseLabel": "Accrued interest receivable" } } }, "localname": "InterestReceivable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_InternalCreditAssessmentAxis": { "auth_ref": [ "r147", "r192", "r196", "r197", "r215", "r312" ], "lang": { "en-US": { "role": { "documentation": "Information by entity-defined rating.", "label": "Internal Credit Assessment [Axis]", "terseLabel": "Internal Credit Assessment [Axis]" } } }, "localname": "InternalCreditAssessmentAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansCreditQualityIndicatorsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_InternalCreditAssessmentDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Entity defined credit risk rating.", "label": "Internal Credit Assessment [Domain]", "terseLabel": "Internal Credit Assessment [Domain]" } } }, "localname": "InternalCreditAssessmentDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansCreditQualityIndicatorsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions": { "auth_ref": [ "r426" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited": { "order": 1.0, "parentTag": "us-gaap_NoninterestIncome", "weight": 1.0 }, "http://soundcb.com/role/RevenuefromContractswithCustomersDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of fees and commissions from banking, advisory, brokerage, and securities underwriting activities. Activities include, but are not limited to, underwriting securities, private placements of securities, investment advisory and management services, merger and acquisition services, sale and servicing of mutual funds, and other related consulting fees.", "label": "Investment Banking, Advisory, Brokerage, and Underwriting Fees and Commissions", "terseLabel": "Service charges and fee income", "totalLabel": "Service charges and fee income" } } }, "localname": "InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited", "http://soundcb.com/role/RevenuefromContractswithCustomersDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_InvestmentInFederalHomeLoanBankStockFairValueDisclosure": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Fair value portion of investments in Federal Home Loan Bank (FHLBank) stock.", "label": "Investment in Federal Home Loan Bank Stock, Fair Value Disclosure", "terseLabel": "FHLB stock" } } }, "localname": "InvestmentInFederalHomeLoanBankStockFairValueDisclosure", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsInformationaboutLevelinFairValueHierarchyforFinancialInstrumentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_InvestmentsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Investments [Abstract]", "terseLabel": "Investments [Abstract]" } } }, "localname": "InvestmentsAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "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]", "verboseLabel": "Amortized Cost and Fair Value of Investments Available-for-Sale by Contractual Maturity" } } }, "localname": "InvestmentsClassifiedByContractualMaturityDateTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/InvestmentsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock": { "auth_ref": [ "r184", "r403", "r438", "r466" ], "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]", "verboseLabel": "Investments" } } }, "localname": "InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/Investments" ], "xbrltype": "textBlockItemType" }, "us-gaap_LaborAndRelatedExpense": { "auth_ref": [ "r49" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited": { "order": 6.0, "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": "Labor and Related Expense", "terseLabel": "Salaries and benefits" } } }, "localname": "LaborAndRelatedExpense", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_LeaseCost": { "auth_ref": [ "r356", "r358" ], "calculation": { "http://soundcb.com/role/LeasesSummaryofComponentsoftheLeasesandSupplementalCashFlowInformationDetails": { "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": "Lease, Cost", "totalLabel": "Net lease expense" } } }, "localname": "LeaseCost", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LeasesSummaryofComponentsoftheLeasesandSupplementalCashFlowInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LeaseCostTableTextBlock": { "auth_ref": [ "r356" ], "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]", "terseLabel": "Summary of Components of the Leases and Supplemental Cash Flow Information" } } }, "localname": "LeaseCostTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LeasesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_LeasesAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Leases [Abstract]", "terseLabel": "Leases [Abstract]" } } }, "localname": "LeasesAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_LesseeLeaseDescriptionLineItems": { "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": "Lessee, Lease, Description [Line Items]", "terseLabel": "Lessee, Lease, Description [Line Items]" } } }, "localname": "LesseeLeaseDescriptionLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LeasesAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_LesseeLeaseDescriptionTable": { "auth_ref": [ "r349" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of information about lessee's leases.", "label": "Lessee, Lease, Description [Table]", "terseLabel": "Lessee, Lease, Description [Table]" } } }, "localname": "LesseeLeaseDescriptionTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LeasesAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock": { "auth_ref": [ "r357" ], "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]", "terseLabel": "Schedule of Lease Liability Maturities" } } }, "localname": "LesseeOperatingLeaseLiabilityMaturityTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LeasesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue": { "auth_ref": [ "r357" ], "calculation": { "http://soundcb.com/role/LeasesScheduleofLeaseLiabilityMaturitiesDetails": { "order": null, "parentTag": null, "root": true, "weight": null }, "http://soundcb.com/role/LeasesScheduleofLeaseLiabilityMaturitiesDetails_1": { "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": "Lessee, Operating Lease, Liability, to be Paid", "totalLabel": "Total lease payments" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsDue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LeasesScheduleofLeaseLiabilityMaturitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths": { "auth_ref": [ "r357" ], "calculation": { "http://soundcb.com/role/LeasesScheduleofLeaseLiabilityMaturitiesDetails": { "order": 5.0, "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "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": "Lessee, Operating Lease, Liability, to be Paid, Year One", "terseLabel": "2021" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LeasesScheduleofLeaseLiabilityMaturitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour": { "auth_ref": [ "r357" ], "calculation": { "http://soundcb.com/role/LeasesScheduleofLeaseLiabilityMaturitiesDetails": { "order": 4.0, "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "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": "Lessee, Operating Lease, Liability, to be Paid, Year Four", "terseLabel": "2024" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearFour", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LeasesScheduleofLeaseLiabilityMaturitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree": { "auth_ref": [ "r357" ], "calculation": { "http://soundcb.com/role/LeasesScheduleofLeaseLiabilityMaturitiesDetails": { "order": 3.0, "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "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": "Lessee, Operating Lease, Liability, to be Paid, Year Three", "terseLabel": "2023" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearThree", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LeasesScheduleofLeaseLiabilityMaturitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo": { "auth_ref": [ "r357" ], "calculation": { "http://soundcb.com/role/LeasesScheduleofLeaseLiabilityMaturitiesDetails": { "order": 2.0, "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "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": "Lessee, Operating Lease, Liability, to be Paid, Year Two", "terseLabel": "2022" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearTwo", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LeasesScheduleofLeaseLiabilityMaturitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear": { "auth_ref": [ "r357" ], "calculation": { "http://soundcb.com/role/LeasesScheduleofLeaseLiabilityMaturitiesDetails": { "order": 1.0, "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease having initial or remaining lease term in excess of one year to be paid in remainder of current fiscal year.", "label": "Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year", "terseLabel": "Remainder of 2020" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LeasesScheduleofLeaseLiabilityMaturitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount": { "auth_ref": [ "r357" ], "calculation": { "http://soundcb.com/role/LeasesScheduleofLeaseLiabilityMaturitiesDetails_1": { "order": 1.0, "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": "Lessee, Operating Lease, Liability, Undiscounted Excess Amount", "terseLabel": "Less: Present value discount" } } }, "localname": "LesseeOperatingLeaseLiabilityUndiscountedExcessAmount", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LeasesScheduleofLeaseLiabilityMaturitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseRemainingLeaseTerm": { "auth_ref": [ "r347" ], "lang": { "en-US": { "role": { "documentation": "Remaining lease term of operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.", "label": "Lessee, Operating Lease, Remaining Lease Term", "terseLabel": "Remaining lease term" } } }, "localname": "LesseeOperatingLeaseRemainingLeaseTerm", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LeasesAdditionalInformationDetails" ], "xbrltype": "durationItemType" }, "us-gaap_LesseeOperatingLeaseTermOfContract": { "auth_ref": [ "r348" ], "lang": { "en-US": { "role": { "documentation": "Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.", "label": "Lessee, Operating Lease, Term of Contract", "terseLabel": "Initial lease term" } } }, "localname": "LesseeOperatingLeaseTermOfContract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LeasesAdditionalInformationDetails" ], "xbrltype": "durationItemType" }, "us-gaap_LesseeOperatingLeasesTextBlock": { "auth_ref": [ "r359" ], "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]", "terseLabel": "Leases" } } }, "localname": "LesseeOperatingLeasesTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/Leases" ], "xbrltype": "textBlockItemType" }, "us-gaap_LetterOfCreditMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "A document typically issued by a financial institution which acts as a guarantee of payment to a beneficiary, or as the source of payment for a specific transaction (for example, wiring funds to a foreign exporter if and when specified merchandise is accepted pursuant to the terms of the letter of credit).", "label": "Letter of Credit [Member]", "terseLabel": "Letter of Credit" } } }, "localname": "LetterOfCreditMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/BorrowingsandFHLBStockDetails" ], "xbrltype": "domainItemType" }, "us-gaap_Liabilities": { "auth_ref": [ "r23", "r77", "r122", "r185", "r307", "r310", "r311", "r331" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited": { "order": 2.0, "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": "Liabilities", "totalLabel": "Total liabilities" } } }, "localname": "Liabilities", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_LiabilitiesAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Liabilities [Abstract]", "terseLabel": "LIABILITIES" } } }, "localname": "LiabilitiesAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited" ], "xbrltype": "stringItemType" }, "us-gaap_LiabilitiesAndStockholdersEquity": { "auth_ref": [ "r17", "r77", "r185", "r331", "r409", "r447" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited": { "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": "Liabilities and Equity", "totalLabel": "Total liabilities and stockholders\u2019 equity" } } }, "localname": "LiabilitiesAndStockholdersEquity", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_LineOfCreditFacilityAxis": { "auth_ref": [ "r21", "r80" ], "lang": { "en-US": { "role": { "documentation": "Information by name of lender, which may be a single entity (for example, but not limited to, a bank, pension fund, venture capital firm) or a group of entities that participate in the line of credit.", "label": "Lender Name [Axis]", "terseLabel": "Lender Name [Axis]" } } }, "localname": "LineOfCreditFacilityAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/BorrowingsandFHLBStockDetails" ], "xbrltype": "stringItemType" }, "us-gaap_LineOfCreditFacilityCapacityAvailableForSpecificPurposeOtherThanForTradePurchases": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The maximum amount of borrowing capacity under a line of credit that is available as of the balance sheet date for a specific purpose other than for financing goods acquired for inventory or imminent delivery to a customer.", "label": "Line of Credit Facility, Capacity Available for Specific Purpose Other than for Trade Purchases", "terseLabel": "Letters of credit to secure public deposits" } } }, "localname": "LineOfCreditFacilityCapacityAvailableForSpecificPurposeOtherThanForTradePurchases", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/BorrowingsandFHLBStockDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity": { "auth_ref": [ "r21" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.", "label": "Line of Credit Facility, Current Borrowing Capacity", "verboseLabel": "Amount available to borrow under loan agreement" } } }, "localname": "LineOfCreditFacilityCurrentBorrowingCapacity", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/BorrowingsandFHLBStockDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LineOfCreditFacilityLenderDomain": { "auth_ref": [ "r21" ], "lang": { "en-US": { "role": { "documentation": "Identification of the lender, which may be a single entity (for example, a bank, pension fund, venture capital firm) or a group of entities that participate in the line of credit, including a letter of credit facility.", "label": "Line of Credit Facility, Lender [Domain]", "terseLabel": "Line of Credit Facility, Lender [Domain]" } } }, "localname": "LineOfCreditFacilityLenderDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/BorrowingsandFHLBStockDetails" ], "xbrltype": "domainItemType" }, "us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity": { "auth_ref": [ "r21" ], "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": "Line of Credit Facility, Remaining Borrowing Capacity", "terseLabel": "Net remaining amount available" } } }, "localname": "LineOfCreditFacilityRemainingBorrowingCapacity", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/BorrowingsandFHLBStockDetails" ], "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]", "terseLabel": "Line of Credit" } } }, "localname": "LineOfCreditMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/BorrowingsandFHLBStockDetails" ], "xbrltype": "domainItemType" }, "us-gaap_LoansAndLeasesReceivableAllowance": { "auth_ref": [ "r133", "r137", "r158", "r161" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited": { "order": 5.0, "parentTag": "us-gaap_Assets", "weight": -1.0 }, "http://soundcb.com/role/LoansAllowanceforLoanLossesandRecordedInvestmentinLoansbyPortfolioSegmentandBasedonImpairmentMethodDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "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": "Loans and Leases Receivable, Allowance", "negatedLabel": "Allowance for loan losses", "negatedTerseLabel": "Allowance for loan losses", "periodEndLabel": "Ending Allowance", "periodStartLabel": "Beginning Allowance", "totalLabel": "Allowance: Ending balance" } } }, "localname": "LoansAndLeasesReceivableAllowance", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited", "http://soundcb.com/role/LoansActivityinAllowanceforLoanLossesDetails", "http://soundcb.com/role/LoansAllowanceforLoanLossesandRecordedInvestmentinLoansbyPortfolioSegmentandBasedonImpairmentMethodDetails", "http://soundcb.com/role/LoansCompositionofLoansDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LoansAndLeasesReceivableCollateralForSecuredBorrowings": { "auth_ref": [ "r153", "r378" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Reflects the aggregate value of loans, trade receivables, securities and financial instruments that serve as collateral for obligations arising from a transfer of financial assets recorded as a secured borrowing.", "label": "Loans and Leases Receivable, Collateral for Secured Borrowings", "terseLabel": "Loans used as collateral for credit facility" } } }, "localname": "LoansAndLeasesReceivableCollateralForSecuredBorrowings", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/BorrowingsandFHLBStockDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LoansAndLeasesReceivableDeferredIncome": { "auth_ref": [ "r152", "r160", "r343", "r417" ], "calculation": { "http://soundcb.com/role/LoansCompositionofLoansDetails": { "order": 2.0, "parentTag": "us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome", "weight": -1.0 } }, "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": "Loans and Leases Receivable, Deferred Income", "negatedLabel": "Deferred fees" } } }, "localname": "LoansAndLeasesReceivableDeferredIncome", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansCompositionofLoansDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LoansAndLeasesReceivableDisclosureAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Loans and Leases Receivable Disclosure [Abstract]", "terseLabel": "Loans and Leases Receivable Disclosure [Abstract]" } } }, "localname": "LoansAndLeasesReceivableDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_LoansAndLeasesReceivableDisclosureLineItems": { "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": "Loans and Leases Receivable Disclosure [Line Items]", "terseLabel": "Loans and Leases Receivable Disclosure [Line Items]" } } }, "localname": "LoansAndLeasesReceivableDisclosureLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansCompositionofLoansDetails" ], "xbrltype": "stringItemType" }, "us-gaap_LoansAndLeasesReceivableDisclosureTable": { "auth_ref": [ "r132" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of information about loans and leases receivable.", "label": "Loans and Leases Receivable Disclosure [Table]", "terseLabel": "Loans and Leases Receivable Disclosure [Table]" } } }, "localname": "LoansAndLeasesReceivableDisclosureTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansCompositionofLoansDetails" ], "xbrltype": "stringItemType" }, "us-gaap_LoansAndLeasesReceivableGrossCarryingAmount": { "auth_ref": [ "r132" ], "calculation": { "http://soundcb.com/role/LoansAllowanceforLoanLossesandRecordedInvestmentinLoansbyPortfolioSegmentandBasedonImpairmentMethodDetails": { "order": null, "parentTag": null, "root": true, "weight": null }, "http://soundcb.com/role/LoansCompositionofLoansDetails": { "order": 1.0, "parentTag": "us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome", "weight": 1.0 }, "http://soundcb.com/role/LoansNonaccrualLoansandAgingofRecordedInvestmentinPastDueLoansDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "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 and Leases Receivable, Gross", "terseLabel": "Total loans held-for-portfolio", "totalLabel": "Loans held for investment: Ending balance" } } }, "localname": "LoansAndLeasesReceivableGrossCarryingAmount", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansAllowanceforLoanLossesandRecordedInvestmentinLoansbyPortfolioSegmentandBasedonImpairmentMethodDetails", "http://soundcb.com/role/LoansCompositionofLoansDetails", "http://soundcb.com/role/LoansCreditQualityIndicatorsDetails", "http://soundcb.com/role/LoansCreditRiskProfileofLoanPortfolioBasedonPaymentActivitybyTypeofLoanDetails", "http://soundcb.com/role/LoansNonaccrualLoansandAgingofRecordedInvestmentinPastDueLoansDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LoansAndLeasesReceivableGrossCarryingAmountAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Loans and Leases Receivable, Gross, Carrying Amount [Abstract]", "terseLabel": "Loans and Leases Receivable, Gross, Carrying Amount [Abstract]" } } }, "localname": "LoansAndLeasesReceivableGrossCarryingAmountAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansCreditQualityIndicatorsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_LoansAndLeasesReceivableImpairedCommitmentToLend": { "auth_ref": [ "r162" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of unfunded portion of contractual agreement to lend funds to borrower for financing receivable modified as troubled debt restructuring.", "label": "Financing Receivable, Troubled Debt Restructuring, Commitment to Lend", "verboseLabel": "Commitments to extend additional credit to borrowers whose loan terms have been modified in TDRs" } } }, "localname": "LoansAndLeasesReceivableImpairedCommitmentToLend", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansTroubledDebtRestructuringsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans": { "auth_ref": [ "r162" ], "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": "Loans and Leases Receivable, Impaired, Interest Lost on Nonaccrual Loans", "terseLabel": "Impaired loans, interest income forgone" } } }, "localname": "LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansImpairedLoansIndividuallyEvaluatedDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome": { "auth_ref": [ "r132", "r152" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited": { "order": 4.0, "parentTag": "us-gaap_Assets", "weight": 1.0 }, "http://soundcb.com/role/LoansCompositionofLoansDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount before allowance and after 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.", "label": "Loans and Leases Receivable, Net of Deferred Income", "terseLabel": "Loans held-for-portfolio", "totalLabel": "Total loans held-for-portfolio, gross" } } }, "localname": "LoansAndLeasesReceivableNetOfDeferredIncome", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited", "http://soundcb.com/role/LoansCompositionofLoansDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LoansAndLeasesReceivableNetReportedAmount": { "auth_ref": [ "r132", "r417" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited": { "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 and Leases Receivable, Net Amount", "terseLabel": "Total loans held-for-portfolio, net", "totalLabel": "Total loans held-for-portfolio, net" } } }, "localname": "LoansAndLeasesReceivableNetReportedAmount", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited", "http://soundcb.com/role/LoansCompositionofLoansDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LoansAndLeasesReceivableNetReportedAmountAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Loans and Leases Receivable, Net Amount [Abstract]", "terseLabel": "Composition of Loans Held-for-Portfolio [Abstract]" } } }, "localname": "LoansAndLeasesReceivableNetReportedAmountAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansCompositionofLoansDetails" ], "xbrltype": "stringItemType" }, "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": "Loans Held-for-sale, Fair Value Disclosure", "terseLabel": "Loans held-for-sale" } } }, "localname": "LoansHeldForSaleFairValueDisclosure", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsInformationaboutLevelinFairValueHierarchyforFinancialInstrumentsDetails" ], "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]", "terseLabel": "Loans Insured or Guaranteed by Government Authorities [Axis]" } } }, "localname": "LoansInsuredOrGuaranteedByGovernmentAuthoritiesAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/BorrowingsandFHLBStockDetails", "http://soundcb.com/role/LoansCompositionofLoansDetails" ], "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]", "terseLabel": "Loans Insured or Guaranteed by Government Authorities [Domain]" } } }, "localname": "LoansInsuredOrGuaranteedByGovernmentAuthoritiesDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/BorrowingsandFHLBStockDetails", "http://soundcb.com/role/LoansCompositionofLoansDetails" ], "xbrltype": "domainItemType" }, "us-gaap_LoansNotesTradeAndOtherReceivablesDisclosureTextBlock": { "auth_ref": [ "r159" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for claims held for amounts due a entity, excluding financing receivables. Examples include, but are not limited to, trade accounts receivables, notes receivables, loans receivables. Includes disclosure for allowance for credit losses.", "label": "Loans, Notes, Trade and Other Receivables Disclosure [Text Block]", "verboseLabel": "Loans" } } }, "localname": "LoansNotesTradeAndOtherReceivablesDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/Loans" ], "xbrltype": "textBlockItemType" }, "us-gaap_LoansReceivableFairValueDisclosure": { "auth_ref": [ "r159" ], "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": "Loans Receivable, Fair Value Disclosure", "terseLabel": "Loans held-for-portfolio, net" } } }, "localname": "LoansReceivableFairValueDisclosure", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsInformationaboutLevelinFairValueHierarchyforFinancialInstrumentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LoansReceivableHeldForSaleAmount": { "auth_ref": [ "r132", "r467" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited": { "order": 3.0, "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": "Financing Receivable, Held-for-Sale", "terseLabel": "Loans held-for-sale" } } }, "localname": "LoansReceivableHeldForSaleAmount", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_MarketApproachValuationTechniqueMember": { "auth_ref": [ "r316" ], "lang": { "en-US": { "role": { "documentation": "Valuation approach using price and other relevant information generated by market transaction involving identical or comparable asset, liability, or group of assets and liabilities.", "label": "Valuation, Market Approach [Member]", "terseLabel": "Market Approach" } } }, "localname": "MarketApproachValuationTechniqueMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsQuantitativeInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_MeasurementInputComparabilityAdjustmentMember": { "auth_ref": [ "r316" ], "lang": { "en-US": { "role": { "documentation": "Measurement input using adjustment to observed price for similar asset or liability when identical transaction does not exist.", "label": "Measurement Input, Comparability Adjustment [Member]", "terseLabel": "Adjustment for differences between comparable sales" } } }, "localname": "MeasurementInputComparabilityAdjustmentMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsQuantitativeInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_MeasurementInputDiscountRateMember": { "auth_ref": [ "r316" ], "lang": { "en-US": { "role": { "documentation": "Measurement input using interest rate to determine present value of future cash flows.", "label": "Measurement Input, Discount Rate [Member]", "terseLabel": "Discount rate" } } }, "localname": "MeasurementInputDiscountRateMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsQuantitativeInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_MeasurementInputPrepaymentRateMember": { "auth_ref": [ "r316" ], "lang": { "en-US": { "role": { "documentation": "Measurement input using principal prepayment at other than constant rate as proportion of outstanding loan principal.", "label": "Measurement Input, Prepayment Rate [Member]", "terseLabel": "Prepayment speed assumption" } } }, "localname": "MeasurementInputPrepaymentRateMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsQuantitativeInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_MeasurementInputTypeAxis": { "auth_ref": [ "r316" ], "lang": { "en-US": { "role": { "documentation": "Information by type of measurement input used to determine value of asset and liability.", "label": "Measurement Input Type [Axis]", "terseLabel": "Measurement Input Type [Axis]" } } }, "localname": "MeasurementInputTypeAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsQuantitativeInformationDetails" ], "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]", "terseLabel": "Measurement Input Type [Domain]" } } }, "localname": "MeasurementInputTypeDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsQuantitativeInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember": { "auth_ref": [ "r239" ], "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]", "terseLabel": "Agency mortgage-backed securities" } } }, "localname": "MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/InvestmentsAggregateFairValueandGrossUnrealizedLossinContinuousUnrealizedLossPositionDetails", "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofAFSSecuritiesandCorrespondingAmountsofGrossUnrealizedGainsAndLossesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_MortgageServicingRightsMSRImpairmentRecovery": { "auth_ref": [ "r67", "r395" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited": { "order": 6.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 }, "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited": { "order": 4.0, "parentTag": "us-gaap_NoninterestIncome", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The adjustment to the carrying value of the rights retained or purchased to service mortgages. These adjustments are made when the estimate of the fair value is changed. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method.", "label": "Mortgage Servicing Rights (MSR) Impairment (Recovery)", "negatedTerseLabel": "Fair value adjustment on mortgage servicing rights", "terseLabel": "Fair value adjustment on mortgage servicing rights" } } }, "localname": "MortgageServicingRightsMSRImpairmentRecovery", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited", "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited", "http://soundcb.com/role/RevenuefromContractswithCustomersDetails" ], "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]", "terseLabel": "Municipal bonds" } } }, "localname": "MunicipalBondsMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/InvestmentsAggregateFairValueandGrossUnrealizedLossinContinuousUnrealizedLossPositionDetails", "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofAFSSecuritiesandCorrespondingAmountsofGrossUnrealizedGainsAndLossesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_NetCashProvidedByUsedInFinancingActivities": { "auth_ref": [ "r63" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited": { "order": 1.0, "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect", "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": "Net Cash Provided by (Used in) Financing Activities", "totalLabel": "Net cash provided by (used in) financing activities" } } }, "localname": "NetCashProvidedByUsedInFinancingActivities", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Net Cash Provided by (Used in) Financing Activities [Abstract]", "terseLabel": "CASH FLOWS FROM FINANCING ACTIVITIES:" } } }, "localname": "NetCashProvidedByUsedInFinancingActivitiesAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited" ], "xbrltype": "stringItemType" }, "us-gaap_NetCashProvidedByUsedInInvestingActivities": { "auth_ref": [ "r63" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited": { "order": 3.0, "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect", "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": "Net Cash Provided by (Used in) Investing Activities", "totalLabel": "Net cash (used in) provided by investing activities" } } }, "localname": "NetCashProvidedByUsedInInvestingActivities", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Net Cash Provided by (Used in) Investing Activities [Abstract]", "terseLabel": "CASH FLOWS FROM INVESTING ACTIVITIES:" } } }, "localname": "NetCashProvidedByUsedInInvestingActivitiesAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited" ], "xbrltype": "stringItemType" }, "us-gaap_NetCashProvidedByUsedInOperatingActivities": { "auth_ref": [ "r63", "r65", "r68" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited": { "order": 2.0, "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect", "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": "Net Cash Provided by (Used in) Operating Activities", "totalLabel": "Net cash (used in) provided by operating activities" } } }, "localname": "NetCashProvidedByUsedInOperatingActivities", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Net Cash Provided by (Used in) Operating Activities [Abstract]", "terseLabel": "CASH FLOWS FROM OPERATING ACTIVITIES:" } } }, "localname": "NetCashProvidedByUsedInOperatingActivitiesAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited" ], "xbrltype": "stringItemType" }, "us-gaap_NetIncomeLoss": { "auth_ref": [ "r0", "r39", "r42", "r46", "r68", "r77", "r87", "r89", "r90", "r91", "r92", "r95", "r96", "r101", "r118", "r120", "r123", "r126", "r128", "r185", "r331", "r418", "r451" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited": { "order": 1.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 }, "http://soundcb.com/role/CondensedConsolidatedStatementsofComprehensiveIncomeunaudited": { "order": 2.0, "parentTag": "us-gaap_ComprehensiveIncomeNetOfTax", "weight": 1.0 }, "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited": { "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 (Loss) Attributable to Parent", "terseLabel": "Net income", "totalLabel": "Net income", "verboseLabel": "Net income" } } }, "localname": "NetIncomeLoss", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited", "http://soundcb.com/role/CondensedConsolidatedStatementsofComprehensiveIncomeunaudited", "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited", "http://soundcb.com/role/CondensedConsolidatedStatementsofStockholdersEquityunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic": { "auth_ref": [ "r89", "r90", "r91", "r92", "r97", "r98", "r102", "r105", "r118", "r120", "r123", "r126", "r128" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders.", "label": "Net Income (Loss) Available to Common Stockholders, Basic", "terseLabel": "Net income available to common shareholders" } } }, "localname": "NetIncomeLossAvailableToCommonStockholdersBasic", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/EarningsPerCommonShareDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Accounting Standards Update and Change in Accounting Principle [Abstract]", "terseLabel": "New Accounting Pronouncements and Changes in Accounting Principles [Abstract]" } } }, "localname": "NewAccountingPronouncementsAndChangesInAccountingPrinciplesAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "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]", "terseLabel": "Accounting Pronouncements Recently Issued or Adopted" } } }, "localname": "NewAccountingPronouncementsPolicyPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/BasisofPresentationPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_NoninterestBearingDepositLiabilities": { "auth_ref": [ "r412" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited": { "order": 1.0, "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 Deposit Liabilities", "terseLabel": "Noninterest-bearing demand" } } }, "localname": "NoninterestBearingDepositLiabilities", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_NoninterestExpense": { "auth_ref": [ "r431" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited": { "order": 1.0, "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Total aggregate amount of all noninterest expense.", "label": "Noninterest Expense", "totalLabel": "Total noninterest expense" } } }, "localname": "NoninterestExpense", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_NoninterestExpenseAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Noninterest Expense [Abstract]", "terseLabel": "NONINTEREST EXPENSE" } } }, "localname": "NoninterestExpenseAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited" ], "xbrltype": "stringItemType" }, "us-gaap_NoninterestIncome": { "auth_ref": [ "r428" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited": { "order": 2.0, "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments", "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": "Noninterest Income", "totalLabel": "Total noninterest income" } } }, "localname": "NoninterestIncome", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited", "http://soundcb.com/role/RevenuefromContractswithCustomersDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_NoninterestIncomeAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Noninterest Income [Abstract]", "terseLabel": "NONINTEREST INCOME" } } }, "localname": "NoninterestIncomeAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited", "http://soundcb.com/role/RevenuefromContractswithCustomersDetails" ], "xbrltype": "stringItemType" }, "us-gaap_NonperformingFinancingReceivableMember": { "auth_ref": [ "r147", "r192" ], "lang": { "en-US": { "role": { "documentation": "Category status of financial instruments in which payments are past due in accordance with the terms of the contract. Financial instruments include, but are not limited to, financing receivables, loans, debt, and investments.", "label": "Nonperforming Financial Instruments [Member]", "terseLabel": "Nonperforming" } } }, "localname": "NonperformingFinancingReceivableMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansCreditRiskProfileofLoanPortfolioBasedonPaymentActivitybyTypeofLoanDetails" ], "xbrltype": "domainItemType" }, "us-gaap_OccupancyNet": { "auth_ref": [ "r51", "r342", "r429" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited": { "order": 3.0, "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, Net", "terseLabel": "Occupancy" } } }, "localname": "OccupancyNet", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseCost": { "auth_ref": [ "r350", "r358" ], "calculation": { "http://soundcb.com/role/LeasesSummaryofComponentsoftheLeasesandSupplementalCashFlowInformationDetails": { "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, Cost", "terseLabel": "Operating lease expense" } } }, "localname": "OperatingLeaseCost", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LeasesSummaryofComponentsoftheLeasesandSupplementalCashFlowInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseLiability": { "auth_ref": [ "r345" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited": { "order": 4.0, "parentTag": "us-gaap_Liabilities", "weight": 1.0 }, "http://soundcb.com/role/LeasesScheduleofLeaseLiabilityMaturitiesDetails_1": { "order": 2.0, "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", "terseLabel": "Lease liabilities", "verboseLabel": "Present value of lease liabilities" } } }, "localname": "OperatingLeaseLiability", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited", "http://soundcb.com/role/LeasesScheduleofLeaseLiabilityMaturitiesDetails", "http://soundcb.com/role/LeasesSummaryofBalanceSheetInformationRelatedtoLeasesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeasePayments": { "auth_ref": [ "r346", "r352" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited": { "order": 8.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "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": "Operating Lease, Payments", "negatedLabel": "Change in lease liabilities", "terseLabel": "Operating cash flows" } } }, "localname": "OperatingLeasePayments", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited", "http://soundcb.com/role/LeasesSummaryofComponentsoftheLeasesandSupplementalCashFlowInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseRightOfUseAsset": { "auth_ref": [ "r344" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited": { "order": 12.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "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", "terseLabel": "Right of use assets" } } }, "localname": "OperatingLeaseRightOfUseAsset", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited", "http://soundcb.com/role/LeasesSummaryofBalanceSheetInformationRelatedtoLeasesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseRightOfUseAssetAmortizationExpense": { "auth_ref": [ "r67" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited": { "order": 7.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of amortization expense for right-of-use asset from operating lease.", "label": "Operating Lease, Right-of-Use Asset, Amortization Expense", "terseLabel": "Change in right of use assets amortization" } } }, "localname": "OperatingLeaseRightOfUseAssetAmortizationExpense", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent": { "auth_ref": [ "r355", "r358" ], "lang": { "en-US": { "role": { "documentation": "Weighted average discount rate for operating lease calculated at point in time.", "label": "Operating Lease, Weighted Average Discount Rate, Percent", "terseLabel": "Weighted-average discount rate" } } }, "localname": "OperatingLeaseWeightedAverageDiscountRatePercent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LeasesSummaryofComponentsoftheLeasesandSupplementalCashFlowInformationDetails" ], "xbrltype": "percentItemType" }, "us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1": { "auth_ref": [ "r354", "r358" ], "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": "Operating Lease, Weighted Average Remaining Lease Term", "terseLabel": "Weighted-average remaining lease term" } } }, "localname": "OperatingLeaseWeightedAverageRemainingLeaseTerm1", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LeasesSummaryofComponentsoftheLeasesandSupplementalCashFlowInformationDetails" ], "xbrltype": "durationItemType" }, "us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Organization, Consolidation and Presentation of Financial Statements [Abstract]", "terseLabel": "Organization, Consolidation and Presentation of Financial Statements [Abstract]" } } }, "localname": "OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_OtherAssets": { "auth_ref": [ "r5", "r404", "r442" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited": { "order": 13.0, "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/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeAvailableForSaleSecuritiesAdjustmentNetOfTaxPeriodIncreaseDecreaseAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax [Abstract]", "terseLabel": "Available for sale securities:" } } }, "localname": "OtherComprehensiveIncomeAvailableForSaleSecuritiesAdjustmentNetOfTaxPeriodIncreaseDecreaseAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofComprehensiveIncomeunaudited" ], "xbrltype": "stringItemType" }, "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent": { "auth_ref": [ "r40", "r43", "r304", "r305", "r308" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofComprehensiveIncomeunaudited": { "order": 1.0, "parentTag": "us-gaap_ComprehensiveIncomeNetOfTax", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount after tax of other comprehensive income (loss) attributable to parent entity.", "label": "Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent", "terseLabel": "Other comprehensive income, net of tax", "totalLabel": "Other comprehensive income, net of tax" } } }, "localname": "OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofComprehensiveIncomeunaudited", "http://soundcb.com/role/CondensedConsolidatedStatementsofStockholdersEquityunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax": { "auth_ref": [ "r31", "r34", "r183" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofComprehensiveIncomeunaudited": { "order": 2.0, "parentTag": "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent", "weight": 1.0 } }, "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": "OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment and Tax", "terseLabel": "Unrealized holding gains arising during the period" } } }, "localname": "OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofComprehensiveIncomeunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax": { "auth_ref": [ "r32", "r35" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofComprehensiveIncomeunaudited": { "order": 1.0, "parentTag": "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent", "weight": -1.0 } }, "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": "OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, Tax", "negatedLabel": "Income tax expense related to unrealized gains/losses" } } }, "localname": "OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofComprehensiveIncomeunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherLiabilities": { "auth_ref": [ "r415" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited": { "order": 5.0, "parentTag": "us-gaap_Liabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of liabilities classified as other.", "label": "Other Liabilities", "terseLabel": "Other liabilities" } } }, "localname": "OtherLiabilities", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherRealEstateAndForeclosedAssets": { "auth_ref": [ "r411" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited": { "order": 8.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Carrying amount as of the balance sheet date of other real estate and foreclosed assets. Other real estate may include 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. Foreclosed assets include all assets obtained in full or partial satisfaction of a debt arrangement through foreclosure proceedings.", "label": "Other Real Estate, Foreclosed Assets, and Repossessed Assets", "terseLabel": "Other real estate owned (\u201cOREO\u201d) and repossessed assets, net" } } }, "localname": "OtherRealEstateAndForeclosedAssets", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherRealEstateOwnedMeasurementInput": { "auth_ref": [ "r318" ], "lang": { "en-US": { "role": { "documentation": "Value of input used to measure real estate owned by financial institution by financial institution which is not directly related to its business.", "label": "Other Real Estate Owned, Measurement Input", "terseLabel": "OREO, unobservable input(s)" } } }, "localname": "OtherRealEstateOwnedMeasurementInput", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsQuantitativeInformationDetails" ], "xbrltype": "decimalItemType" }, "us-gaap_OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld": { "auth_ref": [ "r180", "r181" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The cumulative amount of credit losses recognized in earnings related to debt securities held for which a portion of an other than temporary impairment (OTTI) was recognized in other comprehensive income (a component of shareholders' equity).", "label": "Other than Temporary Impairment, Credit Losses Recognized in Earnings, Credit Losses on Debt Securities Held", "terseLabel": "Credit losses recognized in earnings" } } }, "localname": "OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/InvestmentsAggregateFairValueandGrossUnrealizedLossinContinuousUnrealizedLossPositionDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PassMember": { "auth_ref": [ "r147", "r192" ], "lang": { "en-US": { "role": { "documentation": "A category of financing receivables not considered to be special mention, substandard, doubtful, and loss receivables.", "label": "Pass [Member]", "terseLabel": "Pass" } } }, "localname": "PassMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansCreditQualityIndicatorsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_PastDueFinancingReceivablesTableTextBlock": { "auth_ref": [ "r155", "r156", "r189", "r198" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of aging analysis for financing receivable.", "label": "Financing Receivable, Past Due [Table Text Block]", "terseLabel": "Aging of Recorded Investment in Past Due Loans" } } }, "localname": "PastDueFinancingReceivablesTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_PaymentsForOriginationAndPurchasesOfLoansHeldForSale": { "auth_ref": [ "r62" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited": { "order": 13.0, "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": "Payments for Origination and Purchases of Loans Held-for-sale", "negatedLabel": "Originations of loans held-for-sale" } } }, "localname": "PaymentsForOriginationAndPurchasesOfLoansHeldForSale", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsForProceedsFromLifeInsurancePolicies": { "auth_ref": [ "r82" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited": { "order": 4.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The net cash outflow or inflow for net proceeds and payments derived from carrying life insurance policies for which the entity is the beneficiary.", "label": "Payments for (Proceeds from) Life Insurance Policies", "negatedLabel": "Reduction in (purchase of) BOLI" } } }, "localname": "PaymentsForProceedsFromLifeInsurancePolicies", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsForProceedsFromLoansAndLeases": { "auth_ref": [ "r82" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited": { "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": "Payments for (Proceeds from) Loans and Leases", "negatedLabel": "Net (increase) decrease in loans" } } }, "localname": "PaymentsForProceedsFromLoansAndLeases", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsOfDividendsCommonStock": { "auth_ref": [ "r58" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited": { "order": 6.0, "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": "Payments of Ordinary Dividends, Common Stock", "negatedLabel": "Dividends paid on common stock" } } }, "localname": "PaymentsOfDividendsCommonStock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt": { "auth_ref": [ "r52", "r54", "r165" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited": { "order": 1.0, "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": "Payments to Acquire Debt Securities, Available-for-sale", "negatedTerseLabel": "Purchase of available-for-sale securities" } } }, "localname": "PaymentsToAcquireAvailableForSaleSecuritiesDebt", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsToAcquirePropertyPlantAndEquipment": { "auth_ref": [ "r55" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited": { "order": 5.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.", "label": "Payments to Acquire Property, Plant, and Equipment", "negatedLabel": "Purchases of premises and equipment, net" } } }, "localname": "PaymentsToAcquirePropertyPlantAndEquipment", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_PerformingFinancingReceivableMember": { "auth_ref": [ "r147", "r192" ], "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]", "terseLabel": "Performing" } } }, "localname": "PerformingFinancingReceivableMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansCreditRiskProfileofLoanPortfolioBasedonPaymentActivitybyTypeofLoanDetails" ], "xbrltype": "domainItemType" }, "us-gaap_PlanNameAxis": { "auth_ref": [ "r252", "r281" ], "lang": { "en-US": { "role": { "documentation": "Information by plan name for share-based payment arrangement.", "label": "Plan Name [Axis]", "terseLabel": "Plan Name [Axis]" } } }, "localname": "PlanNameAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationRestrictedStockAwardsDetails", "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails", "http://soundcb.com/role/StockbasedCompensationStockOptionsandRestrictedStockDetails" ], "xbrltype": "stringItemType" }, "us-gaap_PlanNameDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Plan name for share-based payment arrangement.", "label": "Plan Name [Domain]", "terseLabel": "Plan Name [Domain]" } } }, "localname": "PlanNameDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationRestrictedStockAwardsDetails", "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails", "http://soundcb.com/role/StockbasedCompensationStockOptionsandRestrictedStockDetails" ], "xbrltype": "domainItemType" }, "us-gaap_PortionAtFairValueFairValueDisclosureMember": { "auth_ref": [ "r326" ], "lang": { "en-US": { "role": { "documentation": "Measured at fair value for financial reporting purposes.", "label": "Portion at Fair Value Measurement [Member]", "terseLabel": "Portion at Fair Value Measurement" } } }, "localname": "PortionAtFairValueFairValueDisclosureMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsInformationaboutLevelinFairValueHierarchyforFinancialInstrumentsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_PreferredStockParOrStatedValuePerShare": { "auth_ref": [ "r10" ], "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 or Stated Value Per Share", "terseLabel": "Preferred stock, par value (in dollars per share)" } } }, "localname": "PreferredStockParOrStatedValuePerShare", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunauditedParenthetical" ], "xbrltype": "perShareItemType" }, "us-gaap_PreferredStockSharesAuthorized": { "auth_ref": [ "r10" ], "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", "terseLabel": "Preferred stock, shares authorized" } } }, "localname": "PreferredStockSharesAuthorized", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunauditedParenthetical" ], "xbrltype": "sharesItemType" }, "us-gaap_PreferredStockSharesIssued": { "auth_ref": [ "r10" ], "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", "terseLabel": "Preferred stock, shares issued" } } }, "localname": "PreferredStockSharesIssued", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunauditedParenthetical" ], "xbrltype": "sharesItemType" }, "us-gaap_PreferredStockSharesOutstanding": { "auth_ref": [ "r10" ], "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", "terseLabel": "Preferred stock, shares outstanding" } } }, "localname": "PreferredStockSharesOutstanding", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunauditedParenthetical" ], "xbrltype": "sharesItemType" }, "us-gaap_PreferredStockValue": { "auth_ref": [ "r10" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited": { "order": 6.0, "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, Value, Issued", "terseLabel": "Preferred stock, $0.01 par value, 10,000,000 shares authorized, none issued or outstanding" } } }, "localname": "PreferredStockValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_PrincipalAmountOutstandingOfLoansHeldInPortfolio": { "auth_ref": [ "r372" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "This is the result of the principal amount outstanding of total loans managed or securitized less securitized loans and loans that are in the process of being securitized.", "label": "Principal Amount Outstanding of Loans Held-in-portfolio", "terseLabel": "Mortgage servicing rights portfolio" } } }, "localname": "PrincipalAmountOutstandingOfLoansHeldInPortfolio", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/MortgageServicingRightsAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromFederalHomeLoanBankBorrowings": { "auth_ref": [ "r57" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited": { "order": 2.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of cash inflow from Federal Home Loan Bank (FHLBank) borrowing, classified as financing activity.", "label": "Proceeds from FHLBank Borrowings, Financing Activities", "verboseLabel": "Proceeds from borrowings" } } }, "localname": "ProceedsFromFederalHomeLoanBankBorrowings", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromRepaymentOfLoansByEmployeeStockOwnershipPlans": { "auth_ref": [ "r57" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited": { "order": 5.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The cash inflow from the financed defined contribution plan to acquire shares of the entity. The plan initially holds the shares in a suspense account, which is collateral for the loan. As the plan makes payment on the debt, the shares are released from the suspense account and become available to be allocated to participant accounts.", "label": "Proceeds from Repayment of Loans by Employee Stock Ownership Plans", "terseLabel": "Allocation of ESOP shares" } } }, "localname": "ProceedsFromRepaymentOfLoansByEmployeeStockOwnershipPlans", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities": { "auth_ref": [ "r52", "r53", "r165" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited": { "order": 2.0, "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 Sale and Maturity of Debt Securities, Available-for-sale", "terseLabel": "Proceeds from principal payments, maturities and sales of available-for-sale securities" } } }, "localname": "ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt": { "auth_ref": [ "r52", "r53", "r165" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of cash inflow from sale 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 Sale of Debt Securities, Available-for-sale", "verboseLabel": "Sales of available for sale securities" } } }, "localname": "ProceedsFromSaleOfAvailableForSaleSecuritiesDebt", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofInvestmentsAvailableforSalebyContractualMaturityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromSaleOfLoansHeldForSale": { "auth_ref": [ "r60", "r62" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited": { "order": 12.0, "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", "terseLabel": "Proceeds from sale of loans held-for-sale" } } }, "localname": "ProceedsFromSaleOfLoansHeldForSale", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromStockOptionsExercised": { "auth_ref": [ "r56", "r282" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited": { "order": 7.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of cash inflow from exercise of option under share-based payment arrangement.", "label": "Proceeds from Stock Options Exercised", "terseLabel": "Proceeds from common stock option exercises" } } }, "localname": "ProceedsFromStockOptionsExercised", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_PropertyPlantAndEquipmentByTypeAxis": { "auth_ref": [ "r19", "r209" ], "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]", "terseLabel": "Property, Plant and Equipment, Type [Axis]" } } }, "localname": "PropertyPlantAndEquipmentByTypeAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LeasesScheduleofLeaseLiabilityMaturitiesDetails", "http://soundcb.com/role/LeasesSummaryofComponentsoftheLeasesandSupplementalCashFlowInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_PropertyPlantAndEquipmentLineItems": { "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": "Property, Plant and Equipment [Line Items]", "terseLabel": "Property, Plant and Equipment [Line Items]" } } }, "localname": "PropertyPlantAndEquipmentLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LeasesScheduleofLeaseLiabilityMaturitiesDetails", "http://soundcb.com/role/LeasesSummaryofComponentsoftheLeasesandSupplementalCashFlowInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_PropertyPlantAndEquipmentNet": { "auth_ref": [ "r3", "r4", "r209", "r448" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited": { "order": 11.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "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": "Property, Plant and Equipment, Net", "terseLabel": "Premises and equipment, net" } } }, "localname": "PropertyPlantAndEquipmentNet", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_PropertyPlantAndEquipmentTypeDomain": { "auth_ref": [ "r3", "r208" ], "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]", "terseLabel": "Property, Plant and Equipment, Type [Domain]" } } }, "localname": "PropertyPlantAndEquipmentTypeDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LeasesScheduleofLeaseLiabilityMaturitiesDetails", "http://soundcb.com/role/LeasesSummaryofComponentsoftheLeasesandSupplementalCashFlowInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ProvisionForLoanAndLeaseLosses": { "auth_ref": [ "r66", "r134", "r424" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited": { "order": 3.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 }, "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited": { "order": 1.0, "parentTag": "us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of expense related to estimated loss from loan and lease transactions.", "label": "Provision for Loan and Lease Losses", "netLabel": "Provision (recapture) for loan losses", "terseLabel": "Provision (Recapture)", "verboseLabel": "PROVISION (RECAPTURE) FOR LOAN LOSSES" } } }, "localname": "ProvisionForLoanAndLeaseLosses", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited", "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited", "http://soundcb.com/role/LoansActivityinAllowanceforLoanLossesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_RepaymentsOfFederalHomeLoanBankBorrowings": { "auth_ref": [ "r59" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited": { "order": 3.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of cash outflow for repayment of Federal Home Loan Bank (FHLBank) borrowing, classified as financing activity.", "label": "Payments of FHLBank Borrowings, Financing Activities", "negatedLabel": "Repayment of borrowings" } } }, "localname": "RepaymentsOfFederalHomeLoanBankBorrowings", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_ResidentialMortgageMember": { "auth_ref": [ "r197" ], "lang": { "en-US": { "role": { "documentation": "Loan to purchase or refinance residential real estate for example, but not limited to, a home, in which the real estate itself serves as collateral for the loan.", "label": "Residential Mortgage [Member]", "terseLabel": "One-to-four family" } } }, "localname": "ResidentialMortgageMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/BorrowingsandFHLBStockDetails", "http://soundcb.com/role/LoansActivityinAllowanceforLoanLossesDetails", "http://soundcb.com/role/LoansAllowanceforLoanLossesandRecordedInvestmentinLoansbyPortfolioSegmentandBasedonImpairmentMethodDetails", "http://soundcb.com/role/LoansCompositionofLoansDetails", "http://soundcb.com/role/LoansCreditQualityIndicatorsDetails", "http://soundcb.com/role/LoansCreditRiskProfileofLoanPortfolioBasedonPaymentActivitybyTypeofLoanDetails", "http://soundcb.com/role/LoansImpairedLoansIndividuallyEvaluatedDetails", "http://soundcb.com/role/LoansNonaccrualLoansandAgingofRecordedInvestmentinPastDueLoansDetails" ], "xbrltype": "domainItemType" }, "us-gaap_RestrictedStockMember": { "auth_ref": [ "r106" ], "lang": { "en-US": { "role": { "documentation": "Stock including a provision that prohibits sale or substantive sale of an equity instrument for a specified period of time or until specified performance conditions are met.", "label": "Restricted Stock [Member]", "terseLabel": "Restricted Stock" } } }, "localname": "RestrictedStockMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationRestrictedStockAwardsDetails", "http://soundcb.com/role/StockbasedCompensationStockOptionsandRestrictedStockDetails" ], "xbrltype": "domainItemType" }, "us-gaap_RetainedEarningsAccumulatedDeficit": { "auth_ref": [ "r13", "r218", "r286", "r446", "r463", "r465" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited": { "order": 2.0, "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 (Accumulated Deficit)", "verboseLabel": "Retained earnings" } } }, "localname": "RetainedEarningsAccumulatedDeficit", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_RetainedEarningsMember": { "auth_ref": [ "r84", "r85", "r86", "r88", "r94", "r96", "r186", "r283", "r284", "r285", "r300", "r301", "r460", "r462" ], "lang": { "en-US": { "role": { "documentation": "The cumulative amount of the reporting entity's undistributed earnings or deficit.", "label": "Retained Earnings [Member]", "terseLabel": "Retained Earnings" } } }, "localname": "RetainedEarningsMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofStockholdersEquityunaudited" ], "xbrltype": "domainItemType" }, "us-gaap_RevenueFromContractWithCustomerAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Revenue from Contract with Customer [Abstract]", "terseLabel": "Revenue from Contract with Customer [Abstract]" } } }, "localname": "RevenueFromContractWithCustomerAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax": { "auth_ref": [ "r114", "r115", "r119", "r124", "r125", "r129", "r130", "r131", "r227", "r228", "r402" ], "calculation": { "http://soundcb.com/role/RevenuefromContractswithCustomersDetails": { "order": 2.0, "parentTag": "us-gaap_InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount, excluding 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": "Revenue from Contract with Customer, Excluding Assessed Tax", "terseLabel": "Service charges and fee income within scope of ASC 606" } } }, "localname": "RevenueFromContractWithCustomerExcludingAssessedTax", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/RevenuefromContractswithCustomersDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_RevenueFromContractWithCustomerTextBlock": { "auth_ref": [ "r219", "r220", "r221", "r222", "r223", "r224", "r225", "r226", "r229", "r237" ], "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]", "terseLabel": "Revenue from Contracts with Customers" } } }, "localname": "RevenueFromContractWithCustomerTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/RevenuefromContractswithCustomers" ], "xbrltype": "textBlockItemType" }, "us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability": { "auth_ref": [ "r353", "r358" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of increase in right-of-use asset obtained in exchange for operating lease liability.", "label": "Right-of-Use Asset Obtained in Exchange for Operating Lease Liability", "terseLabel": "Right of use assets" } } }, "localname": "RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock": { "auth_ref": [ "r28" ], "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]", "terseLabel": "Composition of Loans" } } }, "localname": "ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems": { "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": "Debt Securities, Available-for-sale [Line Items]", "terseLabel": "Schedule of Available-for-sale Securities [Line Items]" } } }, "localname": "ScheduleOfAvailableForSaleSecuritiesLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/InvestmentsAggregateFairValueandGrossUnrealizedLossinContinuousUnrealizedLossPositionDetails", "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofAFSSecuritiesandCorrespondingAmountsofGrossUnrealizedGainsAndLossesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of the reconciliation of available-for-sale securities from cost basis to fair value.", "label": "Schedule of Available-for-sale Securities Reconciliation [Table Text Block]", "verboseLabel": "Amortized Cost and Fair Value of AFS Securities and Corresponding Amounts of Gross Unrealized Gains and Losses" } } }, "localname": "ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/InvestmentsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfAvailableForSaleSecuritiesTable": { "auth_ref": [ "r170", "r171", "r177", "r178", "r179", "r182", "r436", "r437" ], "lang": { "en-US": { "role": { "documentation": "Schedule of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities.", "label": "Schedule of Available-for-sale Securities [Table]", "terseLabel": "Schedule of Available-for-sale Securities [Table]" } } }, "localname": "ScheduleOfAvailableForSaleSecuritiesTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/InvestmentsAggregateFairValueandGrossUnrealizedLossinContinuousUnrealizedLossPositionDetails", "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofAFSSecuritiesandCorrespondingAmountsofGrossUnrealizedGainsAndLossesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock": { "auth_ref": [ "r105" ], "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]", "terseLabel": "Earnings per Common Share" } } }, "localname": "ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/EarningsPerCommonShareTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfEmployeeStockOwnershipPlanESOPDisclosuresTable": { "auth_ref": [ "r297" ], "lang": { "en-US": { "role": { "documentation": "Describes the details pertaining to each employee stock ownership plan.", "label": "Schedule of Employee Stock Ownership Plan (ESOP) Disclosures [Table]", "terseLabel": "Schedule of Employee Stock Ownership Plan (ESOP) Disclosures [Table]" } } }, "localname": "ScheduleOfEmployeeStockOwnershipPlanESOPDisclosuresTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationEmployeeStockOwnershipPlanDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfFinancingReceivableAllowanceForCreditLossesTable": { "auth_ref": [ "r188" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of information about allowance for credit loss on financing receivable.", "label": "Financing Receivable, Allowance for Credit Loss [Table]", "terseLabel": "Financing Receivable, Allowance for Credit Loss [Table]" } } }, "localname": "ScheduleOfFinancingReceivableAllowanceForCreditLossesTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansActivityinAllowanceforLoanLossesDetails", "http://soundcb.com/role/LoansAllowanceforLoanLossesandRecordedInvestmentinLoansbyPortfolioSegmentandBasedonImpairmentMethodDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable": { "auth_ref": [ "r192", "r197" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of information about credit quality indicator for financing receivable.", "label": "Financing Receivable, Credit Quality Indicator [Table]", "terseLabel": "Financing Receivable, Credit Quality Indicator [Table]" } } }, "localname": "ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansCreditQualityIndicatorsDetails", "http://soundcb.com/role/LoansCreditRiskProfileofLoanPortfolioBasedonPaymentActivitybyTypeofLoanDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfFinancingReceivablesNonAccrualStatusTableTextBlock": { "auth_ref": [ "r155", "r191" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of financing receivable on nonaccrual status.", "label": "Financing Receivable, Nonaccrual [Table Text Block]", "terseLabel": "Nonaccrual Loans" } } }, "localname": "ScheduleOfFinancingReceivablesNonAccrualStatusTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfFinancingReceivablesPastDueTable": { "auth_ref": [ "r189", "r198" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of information about aging analysis for financing receivable.", "label": "Financing Receivable, Past Due [Table]", "terseLabel": "Financing Receivable, Past Due [Table]" } } }, "localname": "ScheduleOfFinancingReceivablesPastDueTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansNonaccrualLoansandAgingofRecordedInvestmentinPastDueLoansDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfImpairedFinancingReceivableTable": { "auth_ref": [ "r145" ], "lang": { "en-US": { "role": { "documentation": "Schedule of the recorded investment, unpaid principal balance, associated allowance, average recorded investment, accounting policies, and interest income recognized on the accrual and cash basis for impaired financing receivables by class of financing receivable.", "label": "Schedule of Impaired Financing Receivable [Table]", "terseLabel": "Schedule of Impaired Financing Receivable [Table]" } } }, "localname": "ScheduleOfImpairedFinancingReceivableTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansImpairedLoansIndividuallyEvaluatedDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfNonvestedRestrictedStockUnitsActivityTableTextBlock": { "auth_ref": [ "r263" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of the changes in outstanding nonvested restricted stock units.", "label": "Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]", "terseLabel": "Outstanding Restricted Stock Awards" } } }, "localname": "ScheduleOfNonvestedRestrictedStockUnitsActivityTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfPropertyPlantAndEquipmentTable": { "auth_ref": [ "r19", "r209" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of information about 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]", "terseLabel": "Property, Plant and Equipment [Table]" } } }, "localname": "ScheduleOfPropertyPlantAndEquipmentTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LeasesScheduleofLeaseLiabilityMaturitiesDetails", "http://soundcb.com/role/LeasesSummaryofComponentsoftheLeasesandSupplementalCashFlowInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfServicingAssetsAtFairValueTextBlock": { "auth_ref": [ "r385" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of the activity in the balance of servicing assets (including a description of where changes in fair value are reported in the statement of income for each period for which results of operations are presented), including but not limited to, the following: beginning and ending balances, additions (for instance, through purchases of servicing assets), disposals, changes in fair value during the period resulting from changes in inputs or assumptions used in the valuation model, other changes in fair value along with a description of those changes, and other changes that affect the balance along with a description of those changes.", "label": "Schedule of Servicing Assets at Fair Value [Table Text Block]", "terseLabel": "Summary of Change in Balance of Mortgage Servicing Assets" } } }, "localname": "ScheduleOfServicingAssetsAtFairValueTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/MortgageServicingRightsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable": { "auth_ref": [ "r252", "r281" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of information about share-based payment arrangement.", "label": "Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]", "terseLabel": "Stock-based Compensation Award [Table]" } } }, "localname": "ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationRestrictedStockAwardsDetails", "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails", "http://soundcb.com/role/StockbasedCompensationStockOptionsandRestrictedStockDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock": { "auth_ref": [ "r257", "r268", "r271" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.", "label": "Share-based Payment Arrangement, Option, Activity [Table Text Block]", "terseLabel": "Stock Option Plan Award Activity" } } }, "localname": "ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock": { "auth_ref": [ "r273" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.", "label": "Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]", "terseLabel": "Weighted-Average Assumptions Used in Determining Fair Value of Options Granted" } } }, "localname": "ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfShortTermDebtTable": { "auth_ref": [ "r22" ], "lang": { "en-US": { "role": { "documentation": "A table or schedule providing information pertaining to borrowings under which repayment was required in less than twelve months (or normal operating cycle, if longer) after its issuance. It may include: (1) description of the short-term debt arrangement; (2) identification of the lender or type of lender; (3) repayment terms; (4) weighted average interest rate; (5) carrying amount of funds borrowed under the specified short-term debt arrangement as of the balance sheet date and measures of the maximum and average amount outstanding during the period; (6) description of the refinancing of a short-term obligation when that obligation is excluded from current liabilities in the balance sheet; and (7) amount of a short-term obligation that has been excluded from current liabilities in the balance sheet because of a refinancing of the obligation.", "label": "Schedule of Short-term Debt [Table]", "terseLabel": "Schedule of Short-term Debt [Table]" } } }, "localname": "ScheduleOfShortTermDebtTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/BorrowingsandFHLBStockDetails" ], "xbrltype": "stringItemType" }, "us-gaap_SellingGeneralAndAdministrativeExpense": { "auth_ref": [ "r50" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited": { "order": 5.0, "parentTag": "us-gaap_NoninterestExpense", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.", "label": "Selling, General and Administrative Expense", "terseLabel": "Operations" } } }, "localname": "SellingGeneralAndAdministrativeExpense", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_ServicingAssetAtFairValueAdditions": { "auth_ref": [ "r387" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The value of new servicing assets, subsequently measured at fair value, acquired or created during the current period through purchases or from transfers of financial assets.", "label": "Servicing Asset at Fair Value, Additions", "terseLabel": "Servicing rights that result from transfers and sale of financial assets" } } }, "localname": "ServicingAssetAtFairValueAdditions", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/MortgageServicingRightsSummaryofChangeinBalanceofMortgageServicingAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ServicingAssetAtFairValueAmount": { "auth_ref": [ "r381", "r382", "r383", "r386" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited": { "order": 9.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Fair value of an asset representing net future revenue from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements.", "label": "Servicing Asset at Fair Value, Amount", "periodEndLabel": "Ending balance, at fair value", "periodStartLabel": "Beginning balance, at fair value", "terseLabel": "Mortgage servicing rights", "verboseLabel": "Mortgage servicing rights, at fair value" } } }, "localname": "ServicingAssetAtFairValueAmount", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited", "http://soundcb.com/role/FairValueMeasurementsInformationaboutLevelinFairValueHierarchyforFinancialInstrumentsDetails", "http://soundcb.com/role/MortgageServicingRightsSummaryofChangeinBalanceofMortgageServicingAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ServicingAssetAtFairValueAmountRollForward": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.", "label": "Servicing Asset at Fair Value, Amount [Roll Forward]", "terseLabel": "Servicing Asset at Fair Value, Amount [Roll Forward]" } } }, "localname": "ServicingAssetAtFairValueAmountRollForward", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/MortgageServicingRightsSummaryofChangeinBalanceofMortgageServicingAssetsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptions": { "auth_ref": [ "r389" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of increase (decrease) in fair value from changes in the inputs, assumptions, or model used to calculate the fair value of the contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer.", "label": "Servicing Asset at Fair Value, Changes in Fair Value Resulting from Changes in Valuation Inputs or Changes in Assumptions", "terseLabel": "Due to changes in model inputs or assumptions and other" } } }, "localname": "ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptions", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/MortgageServicingRightsSummaryofChangeinBalanceofMortgageServicingAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ServicingAssetMeasurementInput": { "auth_ref": [ "r318" ], "lang": { "en-US": { "role": { "documentation": "Value of input used to measure servicing asset.", "label": "Servicing Asset, Measurement Input", "terseLabel": "Mortgage servicing rights, unobservable input(s)" } } }, "localname": "ServicingAssetMeasurementInput", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsQuantitativeInformationDetails" ], "xbrltype": "decimalItemType" }, "us-gaap_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value [Abstract]", "terseLabel": "Mortgage Servicing Right, Key Economic Assumptions [Abstract]" } } }, "localname": "ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/MortgageServicingRightsAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueDiscountRate": { "auth_ref": [ "r384" ], "lang": { "en-US": { "role": { "documentation": "Discount rate used to estimate the fair value of servicing assets and servicing liabilities.", "label": "Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Discount Rate", "terseLabel": "Discount rate" } } }, "localname": "ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueDiscountRate", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/MortgageServicingRightsAdditionalInformationDetails" ], "xbrltype": "percentItemType" }, "us-gaap_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValuePrepaymentSpeed": { "auth_ref": [ "r384" ], "lang": { "en-US": { "role": { "documentation": "Estimated rate of prepayments of principal on servicing assets and servicing liabilities.", "label": "Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Prepayment Speed", "terseLabel": "Prepayment speed (Public Securities Association \u201cPSA\u201d model)" } } }, "localname": "ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValuePrepaymentSpeed", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/MortgageServicingRightsAdditionalInformationDetails" ], "xbrltype": "percentItemType" }, "us-gaap_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueWeightedAverageLife1": { "auth_ref": [ "r384" ], "lang": { "en-US": { "role": { "documentation": "Weighted average life of financial assets and financial liabilities, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.", "label": "Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Weighted Average Life", "terseLabel": "Weighted-average life" } } }, "localname": "ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueWeightedAverageLife1", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/MortgageServicingRightsAdditionalInformationDetails" ], "xbrltype": "durationItemType" }, "us-gaap_ServicingAssetsAtFairValueLineItems": { "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": "Servicing Assets at Fair Value [Line Items]", "terseLabel": "Servicing Assets at Fair Value [Line Items]" } } }, "localname": "ServicingAssetsAtFairValueLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/MortgageServicingRightsAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ServicingAssetsAtFairValueTable": { "auth_ref": [ "r386", "r387", "r388", "r389", "r397" ], "lang": { "en-US": { "role": { "documentation": "Activity in the balance of servicing assets subsequently measured at fair value (including a description of where changes in fair value are reported in the statement of income for each period for which results of operations are presented), including but not limited to, the following: beginning and ending balances, additions (through purchases of servicing assets and servicing assets that result from transfers of financial assets), disposals, changes in fair value during the period resulting from changes in valuations inputs or assumptions used in the valuation model, other changes in fair value along with a description of those changes, and other changes that affect the balance along with a description of those changes.", "label": "Schedule of Servicing Assets at Fair Value [Table]", "terseLabel": "Schedule of Servicing Assets at Fair Value [Table]" } } }, "localname": "ServicingAssetsAtFairValueTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/MortgageServicingRightsAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ShareBasedCompensation": { "auth_ref": [ "r66" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited": { "order": 5.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of noncash expense for share-based payment arrangement.", "label": "Share-based Payment Arrangement, Noncash Expense", "terseLabel": "Compensation expense related to stock options and restricted stock" } } }, "localname": "ShareBasedCompensation", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAdditionalGeneralDisclosuresAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Share-based Compensation Arrangement by Share-based Payment Award, Additional General Disclosures [Abstract]", "terseLabel": "Restricted Stock Awards [Abstract]", "verboseLabel": "Stock Option Awards [Abstract]" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardAdditionalGeneralDisclosuresAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationRestrictedStockAwardsDetails", "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails", "http://soundcb.com/role/StockbasedCompensationStockOptionsandRestrictedStockDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1": { "auth_ref": [ "r253" ], "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": "Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period", "terseLabel": "Award vesting period" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationRestrictedStockAwardsDetails", "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails" ], "xbrltype": "durationItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAdditionalDisclosuresAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract]", "terseLabel": "Aggregate Intrinsic Value Per Share" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAdditionalDisclosuresAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationRestrictedStockAwardsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod": { "auth_ref": [ "r262" ], "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": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period", "negatedLabel": "Forfeited (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationRestrictedStockAwardsDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue": { "auth_ref": [ "r267" ], "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": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value", "terseLabel": "Forfeited (in dollars per share)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationRestrictedStockAwardsDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod": { "auth_ref": [ "r265" ], "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": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period", "terseLabel": "Granted (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationRestrictedStockAwardsDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue": { "auth_ref": [ "r265" ], "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": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value", "terseLabel": "Granted (in dollars per share)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationRestrictedStockAwardsDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedIntrinsicValue": { "auth_ref": [ "r264" ], "lang": { "en-US": { "role": { "documentation": "Per share or unit weighted-average intrinsic value of nonvested award under share-based payment arrangement. Excludes share and unit options.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instrument Other than Option, Nonvested, Intrinsic Value", "terseLabel": "Aggregate intrinsic value per share (in dollars per share)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedIntrinsicValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationRestrictedStockAwardsDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber": { "auth_ref": [ "r264" ], "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": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number", "periodEndLabel": "Non-vested, end of period (in shares)", "periodStartLabel": "Non-vested, beginning of period (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationRestrictedStockAwardsDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]", "terseLabel": "Shares" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationRestrictedStockAwardsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue": { "auth_ref": [ "r264" ], "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": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value", "periodEndLabel": "Non-vested, end of period (in dollars per share)", "periodStartLabel": "Non-vested, beginning of period (in dollars per share)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationRestrictedStockAwardsDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]", "terseLabel": "Weighted-Average Grant-Date Fair Value Per Share" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationRestrictedStockAwardsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod": { "auth_ref": [ "r266" ], "lang": { "en-US": { "role": { "documentation": "The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period", "negatedLabel": "Vested (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationRestrictedStockAwardsDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue": { "auth_ref": [ "r270" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value", "terseLabel": "Total fair value of shares vested" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationRestrictedStockAwardsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue": { "auth_ref": [ "r266" ], "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": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value", "terseLabel": "Vested (in dollars per share)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationRestrictedStockAwardsDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]", "terseLabel": "Share-based compensation arrangement, fair value assumptions and methodology [Abstract]" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate": { "auth_ref": [ "r276" ], "lang": { "en-US": { "role": { "documentation": "The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate", "terseLabel": "Annual dividend yield" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails" ], "xbrltype": "percentItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate": { "auth_ref": [ "r275" ], "lang": { "en-US": { "role": { "documentation": "The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate", "terseLabel": "Expected volatility" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails" ], "xbrltype": "percentItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate": { "auth_ref": [ "r277" ], "lang": { "en-US": { "role": { "documentation": "The risk-free interest rate assumption that is used in valuing an option on its own shares.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate", "terseLabel": "Risk-free interest rate" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails" ], "xbrltype": "percentItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems": { "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": "Share-based Compensation Arrangement by Share-based Payment Award [Line Items]", "terseLabel": "Stock-based Compensation [Line Items]" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationRestrictedStockAwardsDetails", "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails", "http://soundcb.com/role/StockbasedCompensationStockOptionsandRestrictedStockDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized": { "auth_ref": [ "r255" ], "lang": { "en-US": { "role": { "documentation": "Number of shares authorized for issuance under share-based payment arrangement.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized", "terseLabel": "Common stock approved (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationStockOptionsandRestrictedStockDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]", "terseLabel": "Options, Additional Disclosures [Abstract]" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber": { "auth_ref": [ "r260" ], "lang": { "en-US": { "role": { "documentation": "The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number", "terseLabel": "Exercisable (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice": { "auth_ref": [ "r260" ], "lang": { "en-US": { "role": { "documentation": "The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price", "terseLabel": "Exercisable (in dollars per share)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod": { "auth_ref": [ "r262" ], "lang": { "en-US": { "role": { "documentation": "The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period", "negatedLabel": "Forfeited (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Gross number of share options (or share units) granted during the period.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross", "terseLabel": "Granted (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue": { "auth_ref": [ "r269" ], "lang": { "en-US": { "role": { "documentation": "The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value", "terseLabel": "Weighted-average grant date fair value per option granted (in dollars per share)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue": { "auth_ref": [ "r281" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value", "terseLabel": "Outstanding, aggregate intrinsic value" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber": { "auth_ref": [ "r259", "r281" ], "lang": { "en-US": { "role": { "documentation": "Number of options outstanding, including both vested and non-vested options.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number", "periodEndLabel": "Outstanding, end of period (in shares)", "periodStartLabel": "Outstanding, beginning of period (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]", "terseLabel": "Shares" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice": { "auth_ref": [ "r258" ], "lang": { "en-US": { "role": { "documentation": "Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price", "periodEndLabel": "Outstanding, end of period (in dollars per share)", "periodStartLabel": "Outstanding, beginning of period (in dollars per share)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]", "terseLabel": "Weighted- Average Exercise Price" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain": { "auth_ref": [ "r250", "r256" ], "lang": { "en-US": { "role": { "documentation": "Award under share-based payment arrangement.", "label": "Award Type [Domain]", "terseLabel": "Award Type [Domain]" } } }, "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationRestrictedStockAwardsDetails", "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails", "http://soundcb.com/role/StockbasedCompensationStockOptionsandRestrictedStockDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Weighted average price at which option holders acquired shares when converting their stock options into shares.", "label": "Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price", "terseLabel": "Exercised (in dollars per share)" } } }, "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.", "label": "Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price", "terseLabel": "Forfeited (in dollars per share)" } } }, "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.", "label": "Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price", "terseLabel": "Granted (in dollars per share)" } } }, "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage": { "auth_ref": [ "r253" ], "lang": { "en-US": { "role": { "documentation": "Percentage of vesting of award under share-based payment arrangement.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage", "terseLabel": "Annual vesting percentage" } } }, "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationRestrictedStockAwardsDetails", "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails" ], "xbrltype": "percentItemType" }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod": { "auth_ref": [ "r254" ], "lang": { "en-US": { "role": { "documentation": "Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period", "terseLabel": "Term of awards" } } }, "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails" ], "xbrltype": "durationItemType" }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1": { "auth_ref": [ "r274", "r287" ], "lang": { "en-US": { "role": { "documentation": "Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term", "terseLabel": "Expected term" } } }, "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails" ], "xbrltype": "durationItemType" }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1": { "auth_ref": [ "r281" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value", "terseLabel": "Exercisable, aggregate intrinsic value" } } }, "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1": { "auth_ref": [ "r281" ], "lang": { "en-US": { "role": { "documentation": "Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term", "terseLabel": "Exercisable, weighted-average remaining contractual term" } } }, "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails" ], "xbrltype": "durationItemType" }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2": { "auth_ref": [ "r272" ], "lang": { "en-US": { "role": { "documentation": "Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term", "terseLabel": "Outstanding, weighted-average remaining contractual term" } } }, "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails" ], "xbrltype": "durationItemType" }, "us-gaap_ShortTermBorrowings": { "auth_ref": [ "r6", "r407", "r444" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.", "label": "Short-term Debt", "terseLabel": "Outstanding borrowings" } } }, "localname": "ShortTermBorrowings", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/BorrowingsandFHLBStockDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ShortTermBorrowingsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Short-term Debt [Abstract]", "terseLabel": "Borrowings and FHLB Stock [Abstract]" } } }, "localname": "ShortTermBorrowingsAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/BorrowingsandFHLBStockDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ShortTermDebtLineItems": { "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": "Short-term Debt [Line Items]", "terseLabel": "Short-term Debt [Line Items]" } } }, "localname": "ShortTermDebtLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/BorrowingsandFHLBStockDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ShortTermDebtTypeAxis": { "auth_ref": [ "r22" ], "lang": { "en-US": { "role": { "documentation": "Information by type of short-term debt arrangement.", "label": "Short-term Debt, Type [Axis]", "terseLabel": "Short-term Debt, Type [Axis]" } } }, "localname": "ShortTermDebtTypeAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/BorrowingsandFHLBStockDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ShortTermDebtTypeDomain": { "auth_ref": [ "r20" ], "lang": { "en-US": { "role": { "documentation": "Type of short-term debt arrangement, such as notes, line of credit, commercial paper, asset-based financing, project financing, letter of credit financing.", "label": "Short-term Debt, Type [Domain]", "terseLabel": "Short-term Debt, Type [Domain]" } } }, "localname": "ShortTermDebtTypeDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/BorrowingsandFHLBStockDetails" ], "xbrltype": "domainItemType" }, "us-gaap_SignificantAccountingPoliciesTextBlock": { "auth_ref": [ "r83" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for all significant accounting policies of the reporting entity.", "label": "Significant Accounting Policies [Text Block]", "verboseLabel": "Accounting Pronouncements Recently Issued or Adopted" } } }, "localname": "SignificantAccountingPoliciesTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/AccountingPronouncementsRecentlyIssuedorAdopted" ], "xbrltype": "textBlockItemType" }, "us-gaap_SpecialMentionMember": { "auth_ref": [ "r147", "r192" ], "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]", "terseLabel": "Special Mention" } } }, "localname": "SpecialMentionMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansCreditQualityIndicatorsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_StatementEquityComponentsAxis": { "auth_ref": [ "r27", "r84", "r85", "r86", "r88", "r94", "r96", "r112", "r186", "r217", "r218", "r283", "r284", "r285", "r300", "r301", "r333", "r334", "r335", "r336", "r337", "r338", "r460", "r461", "r462" ], "lang": { "en-US": { "role": { "documentation": "Information by component of equity.", "label": "Equity Components [Axis]", "terseLabel": "Equity Components [Axis]" } } }, "localname": "StatementEquityComponentsAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofStockholdersEquityunaudited" ], "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]", "terseLabel": "Statement [Line Items]" } } }, "localname": "StatementLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofStockholdersEquityunaudited" ], "xbrltype": "stringItemType" }, "us-gaap_StatementOfCashFlowsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Statement of Cash Flows [Abstract]", "terseLabel": "Statement of Cash Flows [Abstract]" } } }, "localname": "StatementOfCashFlowsAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_StatementOfFinancialPositionAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Statement of Financial Position [Abstract]", "terseLabel": "Statement of Financial Position [Abstract]" } } }, "localname": "StatementOfFinancialPositionAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Statement of Comprehensive Income [Abstract]", "terseLabel": "Statement of Comprehensive Income [Abstract]" } } }, "localname": "StatementOfIncomeAndComprehensiveIncomeAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_StatementOfStockholdersEquityAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Statement of Stockholders' Equity [Abstract]", "terseLabel": "Statement of Stockholders' Equity [Abstract]" } } }, "localname": "StatementOfStockholdersEquityAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_StatementTable": { "auth_ref": [ "r84", "r85", "r86", "r112", "r402" ], "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]", "terseLabel": "Statement [Table]" } } }, "localname": "StatementTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofStockholdersEquityunaudited" ], "xbrltype": "stringItemType" }, "us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardForfeited": { "auth_ref": [ "r10", "r11", "r217", "r218" ], "lang": { "en-US": { "role": { "documentation": "Number of shares related to Restricted Stock Award forfeited during the period.", "label": "Stock Issued During Period, Shares, Restricted Stock Award, Forfeited", "negatedTerseLabel": "Restricted shares forfeited (in shares)" } } }, "localname": "StockIssuedDuringPeriodSharesRestrictedStockAwardForfeited", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofStockholdersEquityunaudited" ], "xbrltype": "sharesItemType" }, "us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross": { "auth_ref": [ "r217", "r218" ], "lang": { "en-US": { "role": { "documentation": "Total number of shares issued during the period, including shares forfeited, as a result of Restricted Stock Awards.", "label": "Stock Issued During Period, Shares, Restricted Stock Award, Gross", "terseLabel": "Restricted stock awards issued (in shares)" } } }, "localname": "StockIssuedDuringPeriodSharesRestrictedStockAwardGross", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofStockholdersEquityunaudited" ], "xbrltype": "sharesItemType" }, "us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised": { "auth_ref": [ "r10", "r11", "r217", "r218", "r261" ], "lang": { "en-US": { "role": { "documentation": "Number of share options (or share units) exercised during the current period.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period", "negatedLabel": "Exercised (in shares)", "terseLabel": "Common stock options exercised (in shares)" } } }, "localname": "StockIssuedDuringPeriodSharesStockOptionsExercised", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofStockholdersEquityunaudited", "http://soundcb.com/role/StockbasedCompensationStockOptionAwardsDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardForfeitures": { "auth_ref": [ "r10", "r11", "r217", "r218" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Value of stock related to Restricted Stock Awards forfeited during the period.", "label": "Stock Issued During Period, Value, Restricted Stock Award, Forfeitures", "negatedTerseLabel": "Restricted shares forfeited" } } }, "localname": "StockIssuedDuringPeriodValueRestrictedStockAwardForfeitures", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofStockholdersEquityunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardGross": { "auth_ref": [ "r10", "r11", "r217", "r218" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Aggregate value of stock related to Restricted Stock Awards issued during the period.", "label": "Stock Issued During Period, Value, Restricted Stock Award, Gross", "terseLabel": "Restricted stock awards issued" } } }, "localname": "StockIssuedDuringPeriodValueRestrictedStockAwardGross", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofStockholdersEquityunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised": { "auth_ref": [ "r27", "r217", "r218" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Value of stock issued as a result of the exercise of stock options.", "label": "Stock Issued During Period, Value, Stock Options Exercised", "terseLabel": "Common stock options exercised" } } }, "localname": "StockIssuedDuringPeriodValueStockOptionsExercised", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofStockholdersEquityunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockRepurchasedDuringPeriodShares": { "auth_ref": [ "r10", "r11", "r217", "r218" ], "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": "Stock Repurchased During Period, Shares", "negatedLabel": "Common stock surrendered (in shares)" } } }, "localname": "StockRepurchasedDuringPeriodShares", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofStockholdersEquityunaudited" ], "xbrltype": "sharesItemType" }, "us-gaap_StockRepurchasedDuringPeriodValue": { "auth_ref": [ "r10", "r11", "r217", "r218" ], "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": "Stock Repurchased During Period, Value", "negatedLabel": "Common stock surrendered" } } }, "localname": "StockRepurchasedDuringPeriodValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofStockholdersEquityunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockholdersEquity": { "auth_ref": [ "r11", "r15", "r16", "r77", "r157", "r185", "r331" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited": { "order": 1.0, "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": "Stockholders' Equity Attributable to Parent", "periodEndLabel": "Ending balance", "periodStartLabel": "Beginning balance", "totalLabel": "Total stockholders\u2019 equity" } } }, "localname": "StockholdersEquity", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited", "http://soundcb.com/role/CondensedConsolidatedStatementsofStockholdersEquityunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockholdersEquityAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Stockholders' Equity Attributable to Parent [Abstract]", "terseLabel": "STOCKHOLDERS\u2019 EQUITY" } } }, "localname": "StockholdersEquityAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited", "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunauditedParenthetical" ], "xbrltype": "stringItemType" }, "us-gaap_SubleaseIncome": { "auth_ref": [ "r351", "r358" ], "calculation": { "http://soundcb.com/role/LeasesSummaryofComponentsoftheLeasesandSupplementalCashFlowInformationDetails": { "order": 2.0, "parentTag": "us-gaap_LeaseCost", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of sublease income excluding finance and operating lease expense.", "label": "Sublease Income", "negatedTerseLabel": "Sublease income" } } }, "localname": "SubleaseIncome", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LeasesSummaryofComponentsoftheLeasesandSupplementalCashFlowInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_SubsequentEventLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.", "label": "Subsequent Event [Line Items]", "terseLabel": "Subsequent Event [Line Items]" } } }, "localname": "SubsequentEventLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/SubsequentEventNarrativeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_SubsequentEventMember": { "auth_ref": [ "r339", "r361" ], "lang": { "en-US": { "role": { "documentation": "Identifies event that occurred after the balance sheet date but before financial statements are issued or available to be issued.", "label": "Subsequent Event [Member]", "terseLabel": "Subsequent Event" } } }, "localname": "SubsequentEventMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/SubsequentEventNarrativeDetails" ], "xbrltype": "domainItemType" }, "us-gaap_SubsequentEventTable": { "auth_ref": [ "r339", "r361" ], "lang": { "en-US": { "role": { "documentation": "Discloses pertinent information about one or more 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.", "label": "Subsequent Event [Table]", "terseLabel": "Subsequent Event [Table]" } } }, "localname": "SubsequentEventTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/SubsequentEventNarrativeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_SubsequentEventTypeAxis": { "auth_ref": [ "r339", "r361" ], "lang": { "en-US": { "role": { "documentation": "Information by event that occurred after the balance sheet date but before financial statements are issued or available to be issued.", "label": "Subsequent Event Type [Axis]", "terseLabel": "Subsequent Event Type [Axis]" } } }, "localname": "SubsequentEventTypeAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/SubsequentEventNarrativeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_SubsequentEventTypeDomain": { "auth_ref": [ "r339", "r361" ], "lang": { "en-US": { "role": { "documentation": "Event that occurred after the balance sheet date but before financial statements are issued or available to be issued.", "label": "Subsequent Event Type [Domain]", "terseLabel": "Subsequent Event Type [Domain]" } } }, "localname": "SubsequentEventTypeDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/SubsequentEventNarrativeDetails" ], "xbrltype": "domainItemType" }, "us-gaap_SubsequentEventsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Subsequent Events [Abstract]", "terseLabel": "Subsequent Events [Abstract]" } } }, "localname": "SubsequentEventsAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_SubsequentEventsTextBlock": { "auth_ref": [ "r360", "r362" ], "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]", "terseLabel": "Subsequent Event" } } }, "localname": "SubsequentEventsTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/SubsequentEvent" ], "xbrltype": "textBlockItemType" }, "us-gaap_SubstandardMember": { "auth_ref": [ "r147", "r192" ], "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]", "terseLabel": "Substandard" } } }, "localname": "SubstandardMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansCreditQualityIndicatorsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_SupplementalCashFlowInformationAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Supplemental Cash Flow Information [Abstract]", "terseLabel": "SUPPLEMENTAL CASH FLOW INFORMATION:" } } }, "localname": "SupplementalCashFlowInformationAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited" ], "xbrltype": "stringItemType" }, "us-gaap_TransferToOtherRealEstate": { "auth_ref": [ "r72", "r73", "r74" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Value transferred from mortgage loans to real estate owned (REO) in noncash transactions.", "label": "Real Estate Owned, Transfer to Real Estate Owned", "terseLabel": "Loans transferred from loans held-for-portfolio to OREO and repossessed assets" } } }, "localname": "TransferToOtherRealEstate", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_TransfersAndServicingAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Transfers and Servicing [Abstract]", "terseLabel": "Transfers and Servicing [Abstract]" } } }, "localname": "TransfersAndServicingAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_TransfersAndServicingOfFinancialAssetsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Transfers and Servicing of Financial Assets [Abstract]", "terseLabel": "Mortgage Servicing Rights [Abstract]" } } }, "localname": "TransfersAndServicingOfFinancialAssetsAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/MortgageServicingRightsAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain": { "auth_ref": [ "r172", "r173", "r363", "r364", "r365", "r366", "r367", "r368", "r369", "r370", "r371", "r373", "r374", "r375", "r376", "r377", "r380", "r386", "r387", "r388", "r389", "r390", "r391", "r392", "r393", "r394", "r395", "r396", "r397", "r398", "r399", "r400" ], "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]", "terseLabel": "Financial Instruments [Domain]" } } }, "localname": "TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/InvestmentsAggregateFairValueandGrossUnrealizedLossinContinuousUnrealizedLossPositionDetails", "http://soundcb.com/role/InvestmentsAmortizedCostandFairValueofAFSSecuritiesandCorrespondingAmountsofGrossUnrealizedGainsAndLossesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_UnallocatedFinancingReceivablesMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Financing receivables that have not been allocated to a portfolio segment.", "label": "Unallocated Financing Receivables [Member]", "terseLabel": "Unallocated" } } }, "localname": "UnallocatedFinancingReceivablesMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansActivityinAllowanceforLoanLossesDetails", "http://soundcb.com/role/LoansAllowanceforLoanLossesandRecordedInvestmentinLoansbyPortfolioSegmentandBasedonImpairmentMethodDetails" ], "xbrltype": "domainItemType" }, "us-gaap_UnearnedESOPShares": { "auth_ref": [ "r292", "r296" ], "calculation": { "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited": { "order": 3.0, "parentTag": "us-gaap_StockholdersEquity", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Fair value of unearned shares for all classes of common stock and nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by an employee stock ownership plan (ESOP). Includes the sale of shares or the issuance treasury shares to an ESOP.", "label": "Unearned ESOP Shares", "negatedLabel": "Unearned shares - Employee Stock Ownership Plan (\u201cESOP\u201d)" } } }, "localname": "UnearnedESOPShares", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedBalanceSheetsunaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_UnlikelyToBeCollectedFinancingReceivableMember": { "auth_ref": [ "r147", "r192" ], "lang": { "en-US": { "role": { "documentation": "Financing arrangement that represents a contractual right to receive money either on demand or on fixed or determinable dates that are considered uncollectible or of little value. Excludes no recovery or salvage value.", "label": "Unlikely to be Collected Financing Receivable [Member]", "terseLabel": "Loss" } } }, "localname": "UnlikelyToBeCollectedFinancingReceivableMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/LoansCreditQualityIndicatorsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ValuationTechniqueAxis": { "auth_ref": [ "r316" ], "lang": { "en-US": { "role": { "documentation": "Information by valuation approach and technique.", "label": "Valuation Approach and Technique [Axis]", "terseLabel": "Valuation Technique [Axis]" } } }, "localname": "ValuationTechniqueAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsQuantitativeInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ValuationTechniqueDiscountedCashFlowMember": { "auth_ref": [ "r316" ], "lang": { "en-US": { "role": { "documentation": "Valuation technique calculating present value of future cash flows.", "label": "Valuation Technique, Discounted Cash Flow [Member]", "verboseLabel": "Discounted Cash Flow" } } }, "localname": "ValuationTechniqueDiscountedCashFlowMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsQuantitativeInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ValuationTechniqueDomain": { "auth_ref": [ "r316" ], "lang": { "en-US": { "role": { "documentation": "Valuation approach and technique.", "label": "Valuation Approach and Technique [Domain]", "terseLabel": "Valuation Technique [Domain]" } } }, "localname": "ValuationTechniqueDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/FairValueMeasurementsQuantitativeInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment": { "auth_ref": [ "r105" ], "calculation": { "http://soundcb.com/role/EarningsPerCommonShareDetails": { "order": 2.0, "parentTag": "us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding", "weight": 1.0 } }, "lang": { "en-US": { "role": { "documentation": "The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation.", "label": "Weighted Average Number Diluted Shares Outstanding Adjustment", "terseLabel": "Effect of potentially dilutive common shares (in shares)" } } }, "localname": "WeightedAverageNumberDilutedSharesOutstandingAdjustment", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/EarningsPerCommonShareDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding": { "auth_ref": [ "r99", "r105" ], "calculation": { "http://soundcb.com/role/EarningsPerCommonShareDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "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": "Weighted Average Number of Shares Outstanding, Diluted", "terseLabel": "Diluted (in shares)", "totalLabel": "Weighted-average number of shares outstanding, diluted" } } }, "localname": "WeightedAverageNumberOfDilutedSharesOutstanding", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited", "http://soundcb.com/role/EarningsPerCommonShareDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Weighted Average Number of Shares Outstanding, Diluted [Abstract]", "terseLabel": "Weighted-average number of common shares outstanding:" } } }, "localname": "WeightedAverageNumberOfSharesOutstandingAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited" ], "xbrltype": "stringItemType" }, "us-gaap_WeightedAverageNumberOfSharesOutstandingBasic": { "auth_ref": [ "r97", "r105" ], "calculation": { "http://soundcb.com/role/EarningsPerCommonShareDetails": { "order": 1.0, "parentTag": "us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding", "weight": 1.0 } }, "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 Number of Shares Outstanding, Basic", "terseLabel": "Basic (in shares)", "verboseLabel": "Weighted-average number of shares outstanding, basic" } } }, "localname": "WeightedAverageNumberOfSharesOutstandingBasic", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://soundcb.com/role/CondensedConsolidatedStatementsofIncomeunaudited", "http://soundcb.com/role/EarningsPerCommonShareDetails" ], "xbrltype": "sharesItemType" } }, "unitCount": 7 } }, "std_ref": { "r0": { "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" }, "r1": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "205", "URI": "http://asc.fasb.org/topic&trid=2122149" }, "r10": { "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" }, "r100": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=d3e1252-109256" }, "r101": { "Name": "Accounting Standards Codification", "Paragraph": "60B", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=SL5780133-109256" }, "r102": { "Name": "Accounting Standards Codification", "Paragraph": "60B", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=SL5780133-109256" }, "r103": { "Name": "Accounting Standards Codification", "Paragraph": "60B", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=SL5780133-109256" }, "r104": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=d3e1337-109256" }, "r105": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257" }, "r106": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257" }, "r107": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=6371337&loc=d3e3630-109257" }, "r108": { "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" }, "r109": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=120380238&loc=d3e3842-109258" }, "r11": { "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" }, "r110": { "Name": "Accounting Standards Codification", "Paragraph": "52", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=120380238&loc=d3e4984-109258" }, "r111": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "260", "URI": "http://asc.fasb.org/topic&trid=2144383" }, "r112": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "272", "URI": "http://asc.fasb.org/extlink&oid=6828210&loc=d3e70191-108054" }, "r113": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "275", "URI": "http://asc.fasb.org/topic&trid=2134479" }, "r114": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599" }, "r115": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599" }, "r116": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599" }, "r117": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(h)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599" }, "r118": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599" }, "r119": { "Name": "Accounting Standards Codification", "Paragraph": "30", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599" }, "r12": { "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" }, "r120": { "Name": "Accounting Standards Codification", "Paragraph": "30", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599" }, "r121": { "Name": "Accounting Standards Codification", "Paragraph": "30", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599" }, "r122": { "Name": "Accounting Standards Codification", "Paragraph": "30", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599" }, "r123": { "Name": "Accounting Standards Codification", "Paragraph": "31", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8924-108599" }, "r124": { "Name": "Accounting Standards Codification", "Paragraph": "32", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599" }, "r125": { "Name": "Accounting Standards Codification", "Paragraph": "32", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599" }, "r126": { "Name": "Accounting Standards Codification", "Paragraph": "32", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599" }, "r127": { "Name": "Accounting Standards Codification", "Paragraph": "32", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599" }, "r128": { "Name": "Accounting Standards Codification", "Paragraph": "32", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(f)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599" }, "r129": { "Name": "Accounting Standards Codification", "Paragraph": "40", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e9031-108599" }, "r13": { "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" }, "r130": { "Name": "Accounting Standards Codification", "Paragraph": "41", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e9038-108599" }, "r131": { "Name": "Accounting Standards Codification", "Paragraph": "42", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e9054-108599" }, "r132": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121593590&loc=d3e4428-111522" }, "r133": { "Name": "Accounting Standards Codification", "Paragraph": "11B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524" }, "r134": { "Name": "Accounting Standards Codification", "Paragraph": "11B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(2)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524" }, "r135": { "Name": "Accounting Standards Codification", "Paragraph": "11B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(3)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524" }, "r136": { "Name": "Accounting Standards Codification", "Paragraph": "11B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(4)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524" }, "r137": { "Name": "Accounting Standards Codification", "Paragraph": "11B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(g)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524" }, "r138": { "Name": "Accounting Standards Codification", "Paragraph": "11B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(h)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524" }, "r139": { "Name": "Accounting Standards Codification", "Paragraph": "11B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524" }, "r14": { "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" }, "r140": { "Name": "Accounting Standards Codification", "Paragraph": "14A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=SL6953550-111524" }, "r141": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(3)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=d3e5212-111524" }, "r142": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(4)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=d3e5212-111524" }, "r143": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=d3e5212-111524" }, "r144": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(2)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=d3e5212-111524" }, "r145": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=d3e5212-111524" }, "r146": { "Name": "Accounting Standards Codification", "Paragraph": "17", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=d3e5258-111524" }, "r147": { "Name": "Accounting Standards Codification", "Paragraph": "29", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=SL6953659-111524" }, "r148": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=d3e5066-111524" }, "r149": { "Name": "Accounting Standards Codification", "Paragraph": "33", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=SL6953676-111524" }, "r15": { "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" }, "r150": { "Name": "Accounting Standards Codification", "Paragraph": "34", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(2)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=SL6953682-111524" }, "r151": { "Name": "Accounting Standards Codification", "Paragraph": "34", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=SL6953682-111524" }, "r152": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=d3e5074-111524" }, "r153": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=d3e5086-111524" }, "r154": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=d3e5111-111524" }, "r155": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=d3e5111-111524" }, "r156": { "Name": "Accounting Standards Codification", "Paragraph": "7A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=SL6953401-111524" }, "r157": { "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=27010918&loc=d3e74512-122707" }, "r158": { "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=27010918&loc=d3e74567-122707" }, "r159": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/subtopic&trid=2196772" }, "r16": { "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" }, "r160": { "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" }, "r161": { "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" }, "r162": { "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" }, "r163": { "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" }, "r164": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121553693&loc=d3e26610-111562" }, "r165": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121553693&loc=d3e26853-111562" }, "r166": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27161-111563" }, "r167": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(aa)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27161-111563" }, "r168": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27161-111563" }, "r169": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27161-111563" }, "r17": { "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" }, "r170": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27161-111563" }, "r171": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27198-111563" }, "r172": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27232-111563" }, "r173": { "Name": "Accounting Standards Codification", "Paragraph": "5A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=SL120269820-111563" }, "r174": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27290-111563" }, "r175": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(1)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27290-111563" }, "r176": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(2)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27290-111563" }, "r177": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27290-111563" }, "r178": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27337-111563" }, "r179": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27340-111563" }, "r18": { "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" }, "r180": { "Name": "Accounting Standards Codification", "Paragraph": "8B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=SL6284393-111563" }, "r181": { "Name": "Accounting Standards Codification", "Paragraph": "8B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(g)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=SL6284393-111563" }, "r182": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)-(d)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27357-111563" }, "r183": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27357-111563" }, "r184": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "320", "URI": "http://asc.fasb.org/topic&trid=2196928" }, "r185": { "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" }, "r186": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121646688&loc=SL121648383-210437" }, "r187": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121599337&loc=SL82919244-210447" }, "r188": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447" }, "r189": { "Name": "Accounting Standards Codification", "Paragraph": "14", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121599337&loc=SL82919253-210447" }, "r19": { "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" }, "r190": { "Name": "Accounting Standards Codification", "Paragraph": "16", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121599337&loc=SL82919258-210447" }, "r191": { "Name": "Accounting Standards Codification", "Paragraph": "16", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121599337&loc=SL82919258-210447" }, "r192": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121599337&loc=SL82919230-210447" }, "r193": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121647567&loc=SL82921830-210448" }, "r194": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121647567&loc=SL82921833-210448" }, "r195": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121647567&loc=SL82921835-210448" }, "r196": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121647567&loc=SL82921842-210448" }, "r197": { "Name": "Accounting Standards Codification", "Paragraph": "79", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121647567&loc=SL82922352-210448" }, "r198": { "Name": "Accounting Standards Codification", "Paragraph": "80", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121647567&loc=SL82922355-210448" }, "r199": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121558606&loc=SL82898722-210454" }, "r2": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=121566466&loc=d3e6676-107765" }, "r20": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.19(a))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r200": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)(1)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121582814&loc=SL82922888-210455" }, "r201": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)(2)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121582814&loc=SL82922888-210455" }, "r202": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(b)(3)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121582814&loc=SL82922888-210455" }, "r203": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121582814&loc=SL82922888-210455" }, "r204": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121582814&loc=SL82922890-210455" }, "r205": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121582814&loc=SL82922895-210455" }, "r206": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121582814&loc=SL82922900-210455" }, "r207": { "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" }, "r208": { "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" }, "r209": { "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" }, "r21": { "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" }, "r210": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "440", "URI": "http://asc.fasb.org/extlink&oid=121559207&loc=d3e25336-109308" }, "r211": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "440", "URI": "http://asc.fasb.org/extlink&oid=121559207&loc=d3e25336-109308" }, "r212": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "440", "URI": "http://asc.fasb.org/topic&trid=2144648" }, "r213": { "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" }, "r214": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "450", "URI": "http://asc.fasb.org/topic&trid=2127136" }, "r215": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(4)", "Topic": "460", "URI": "http://asc.fasb.org/extlink&oid=121555522&loc=d3e12069-110248" }, "r216": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "470", "URI": "http://asc.fasb.org/topic&trid=2208564" }, "r217": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644" }, "r218": { "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" }, "r219": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130551-203045" }, "r22": { "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" }, "r220": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045" }, "r221": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045" }, "r222": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045" }, "r223": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045" }, "r224": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045" }, "r225": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)(2)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130556-203045" }, "r226": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130558-203045" }, "r227": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130543-203045" }, "r228": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130545-203045" }, "r229": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130550-203045" }, "r23": { "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" }, "r230": { "Name": "Accounting Standards Codification", "Paragraph": "91", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121551570&loc=SL49130690-203046-203046" }, "r231": { "Name": "Accounting Standards Codification", "Paragraph": "91", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121551570&loc=SL49130690-203046-203046" }, "r232": { "Name": "Accounting Standards Codification", "Paragraph": "91", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121551570&loc=SL49130690-203046-203046" }, "r233": { "Name": "Accounting Standards Codification", "Paragraph": "91", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121551570&loc=SL49130690-203046-203046" }, "r234": { "Name": "Accounting Standards Codification", "Paragraph": "91", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121551570&loc=SL49130690-203046-203046" }, "r235": { "Name": "Accounting Standards Codification", "Paragraph": "91", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Subparagraph": "(f)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121551570&loc=SL49130690-203046-203046" }, "r236": { "Name": "Accounting Standards Codification", "Paragraph": "91", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Subparagraph": "(g)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121551570&loc=SL49130690-203046-203046" }, "r237": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "606", "URI": "http://asc.fasb.org/topic&trid=49130388" }, "r238": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)(i)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r239": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)(ii)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r24": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.22(b))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r240": { "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=118255775&loc=d3e1928-114920" }, "r241": { "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=118255775&loc=d3e1928-114920" }, "r242": { "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=118255775&loc=d3e1928-114920" }, "r243": { "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=118255775&loc=d3e1928-114920" }, "r244": { "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=118255775&loc=d3e1928-114920" }, "r245": { "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=118255775&loc=d3e1928-114920" }, "r246": { "Name": "Accounting Standards Codification", "Paragraph": "17", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921" }, "r247": { "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" }, "r248": { "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" }, "r249": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "35", "SubTopic": "10", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=121326096&loc=d3e4534-113899" }, "r25": { "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" }, "r250": { "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" }, "r251": { "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" }, "r252": { "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" }, "r253": { "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" }, "r254": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(2)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r255": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(3)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r256": { "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" }, "r257": { "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" }, "r258": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)(i)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r259": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)(i)-(ii)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r26": { "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" }, "r260": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)(iii)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r261": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)(iv)(2)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r262": { "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" }, "r263": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(2)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r264": { "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" }, "r265": { "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" }, "r266": { "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" }, "r267": { "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" }, "r268": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r269": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)(1)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r27": { "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" }, "r270": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)(2)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r271": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r272": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(e)(1)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r273": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(f)(2)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r274": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(f)(2)(i)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r275": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(f)(2)(ii)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r276": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(f)(2)(iii)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r277": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(f)(2)(iv)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r278": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(g)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r279": { "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" }, "r28": { "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" }, "r280": { "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" }, "r281": { "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" }, "r282": { "Name": "Accounting Standards Codification", "Paragraph": "2A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=SL79508275-113901" }, "r283": { "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" }, "r284": { "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" }, "r285": { "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" }, "r286": { "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" }, "r287": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 14.D.2)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809" }, "r288": { "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=115993241&loc=d3e301413-122809" }, "r289": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120383193&loc=d3e11149-113907" }, "r29": { "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" }, "r290": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120383193&loc=d3e11178-113907" }, "r291": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "25", "SubTopic": "40", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=109244457&loc=d3e16721-113920" }, "r292": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "40", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=6418591&loc=d3e17344-113926" }, "r293": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "40", "Subparagraph": "(a)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=109244661&loc=d3e17540-113929" }, "r294": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "40", "Subparagraph": "(c)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=109244661&loc=d3e17540-113929" }, "r295": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "40", "Subparagraph": "(d)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=109244661&loc=d3e17540-113929" }, "r296": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "40", "Subparagraph": "(e)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=109244661&loc=d3e17540-113929" }, "r297": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "40", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=109244661&loc=d3e17540-113929" }, "r298": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "718", "URI": "http://asc.fasb.org/topic&trid=2228938" }, "r299": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32672-109319" }, "r3": { "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" }, "r30": { "Name": "Accounting Standards Codification", "Paragraph": "16", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=99393222&loc=SL20226024-175313" }, "r300": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(d)(2)", "Topic": "740" }, "r301": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(d)(3)", "Topic": "740" }, "r302": { "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=116825942&loc=d3e330036-122817" }, "r303": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=120385591&loc=d3e38679-109324" }, "r304": { "Name": "Accounting Standards Codification", "Paragraph": "19", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=108774443&loc=SL4569616-111683" }, "r305": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=108774443&loc=SL4569643-111683" }, "r306": { "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" }, "r307": { "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" }, "r308": { "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" }, "r309": { "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" }, "r31": { "Name": "Accounting Standards Codification", "Paragraph": "10A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669646-108580" }, "r310": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(bb)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=121559654&loc=d3e5710-111685" }, "r311": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=121559654&loc=d3e5710-111685" }, "r312": { "Name": "Accounting Standards Codification", "Paragraph": "4K", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(4)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5708775-113959" }, "r313": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258" }, "r314": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258" }, "r315": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(bb)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258" }, "r316": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(bbb)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258" }, "r317": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(bbb)(1)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258" }, "r318": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(bbb)(2)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258" }, "r319": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258" }, "r32": { "Name": "Accounting Standards Codification", "Paragraph": "10A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(f)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669646-108580" }, "r320": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(h)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258" }, "r321": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258" }, "r322": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19279-110258" }, "r323": { "Name": "Accounting Standards Codification", "Paragraph": "6A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=SL6742756-110258" }, "r324": { "Name": "Accounting Standards Codification", "Paragraph": "6A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=SL6742756-110258" }, "r325": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "60", "SubTopic": "10", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=7493716&loc=d3e21868-110260" }, "r326": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=116690757&loc=d3e13220-108610" }, "r327": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=121572278&loc=d3e13279-108611" }, "r328": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=121572278&loc=d3e13433-108611" }, "r329": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=121572278&loc=d3e13467-108611" }, "r33": { "Name": "Accounting Standards Codification", "Paragraph": "10A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669646-108580" }, "r330": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=121572278&loc=d3e13476-108611" }, "r331": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(f)", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=75031198&loc=d3e14064-108612" }, "r332": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "230", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=98513438&loc=d3e33268-110906" }, "r333": { "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" }, "r334": { "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" }, "r335": { "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" }, "r336": { "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" }, "r337": { "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" }, "r338": { "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" }, "r339": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=6450520&loc=d3e32618-110901" }, "r34": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=d3e637-108580" }, "r340": { "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" }, "r341": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "835", "URI": "http://asc.fasb.org/extlink&oid=119993939&loc=d3e28555-108399" }, "r342": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "840", "URI": "http://asc.fasb.org/extlink&oid=121616839&loc=d3e45280-112737" }, "r343": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)(4)", "Topic": "840", "URI": "http://asc.fasb.org/extlink&oid=121568338&loc=d3e45377-112738" }, "r344": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977" }, "r345": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977" }, "r346": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121603541&loc=SL77918643-209977" }, "r347": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)(1)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121609121&loc=SL77918673-209980" }, "r348": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)(3)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121609121&loc=SL77918673-209980" }, "r349": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121609121&loc=SL77918673-209980" }, "r35": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=d3e640-108580" }, "r350": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980" }, "r351": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(e)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980" }, "r352": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(g)(1)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980" }, "r353": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(g)(2)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980" }, "r354": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(g)(3)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980" }, "r355": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(g)(4)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980" }, "r356": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980" }, "r357": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121609121&loc=SL77918701-209980" }, "r358": { "Name": "Accounting Standards Codification", "Paragraph": "53", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121568110&loc=SL77918982-209971" }, "r359": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "SubTopic": "20", "Topic": "842", "URI": "http://asc.fasb.org/subtopic&trid=77888251" }, "r36": { "Name": "Accounting Standards Codification", "Paragraph": "14", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=d3e681-108580" }, "r360": { "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" }, "r361": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "855", "URI": "http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662" }, "r362": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "855", "URI": "http://asc.fasb.org/topic&trid=2122774" }, "r363": { "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" }, "r364": { "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" }, "r365": { "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" }, "r366": { "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" }, "r367": { "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" }, "r368": { "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" }, "r369": { "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" }, "r37": { "Name": "Accounting Standards Codification", "Paragraph": "14A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669686-108580" }, "r370": { "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" }, "r371": { "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" }, "r372": { "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" }, "r373": { "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" }, "r374": { "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" }, "r375": { "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" }, "r376": { "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" }, "r377": { "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" }, "r378": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(b)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=109249958&loc=SL6224234-111729" }, "r379": { "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" }, "r38": { "Name": "Accounting Standards Codification", "Paragraph": "17B", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL34724394-108580" }, "r380": { "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" }, "r381": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "50", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=6469459&loc=d3e122492-111745" }, "r382": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "50", "Subparagraph": "(a)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=6469459&loc=d3e122501-111745" }, "r383": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "50", "Subparagraph": "(b)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=6469459&loc=d3e122501-111745" }, "r384": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(d)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122596-111746" }, "r385": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122625-111746" }, "r386": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(1)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122625-111746" }, "r387": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(2)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122625-111746" }, "r388": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(3)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122625-111746" }, "r389": { "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=116651436&loc=d3e122625-111746" }, "r39": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669619-108580" }, "r390": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(1)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122739-111746" }, "r391": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(2)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122739-111746" }, "r392": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(3)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122739-111746" }, "r393": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(4)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122739-111746" }, "r394": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(5)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122739-111746" }, "r395": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(6)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122739-111746" }, "r396": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(7)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122739-111746" }, "r397": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(b)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122739-111746" }, "r398": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(e)(1)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122739-111746" }, "r399": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(e)(2)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122739-111746" }, "r4": { "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" }, "r40": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669619-108580" }, "r400": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(e)(3)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122739-111746" }, "r401": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "910", "URI": "http://asc.fasb.org/extlink&oid=119991564&loc=SL119991595-234733" }, "r402": { "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" }, "r403": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "SubTopic": "320", "Topic": "940", "URI": "http://asc.fasb.org/subtopic&trid=2176304" }, "r404": { "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" }, "r405": { "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" }, "r406": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(13)(3)(a))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r407": { "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" }, "r408": { "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" }, "r409": { "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" }, "r41": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669619-108580" }, "r410": { "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" }, "r411": { "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" }, "r412": { "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" }, "r413": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03.13(3)(a))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r414": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03.15(5))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r415": { "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" }, "r416": { "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" }, "r417": { "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" }, "r418": { "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" }, "r419": { "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" }, "r42": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669625-108580" }, "r420": { "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" }, "r421": { "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" }, "r422": { "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" }, "r423": { "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" }, "r424": { "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" }, "r425": { "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" }, "r426": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04.13(b))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r427": { "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" }, "r428": { "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" }, "r429": { "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" }, "r43": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669625-108580" }, "r430": { "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" }, "r431": { "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" }, "r432": { "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" }, "r433": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04.7,8)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r434": { "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" }, "r435": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "230", "Subparagraph": "(b)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=121551529&loc=d3e60009-112784" }, "r436": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "320", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120252992&loc=d3e62557-112803" }, "r437": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "320", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120252992&loc=d3e62586-112803" }, "r438": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "SubTopic": "320", "Topic": "942", "URI": "http://asc.fasb.org/subtopic&trid=2209399" }, "r439": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "325", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=75031641&loc=d3e63345-112809" }, "r44": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=d3e557-108580" }, "r440": { "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" }, "r441": { "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" }, "r442": { "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" }, "r443": { "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" }, "r444": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(16)(a)(1))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r445": { "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" }, "r446": { "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" }, "r447": { "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" }, "r448": { "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" }, "r449": { "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" }, "r45": { "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=120395209&loc=SL114868664-224227" }, "r450": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03.15(a))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r451": { "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" }, "r452": { "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" }, "r453": { "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" }, "r454": { "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" }, "r455": { "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" }, "r456": { "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" }, "r457": { "Name": "Accounting Standards Codification", "Paragraph": "7A", "Publisher": "FASB", "Section": "50", "SubTopic": "40", "Subparagraph": "(d)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=121643868&loc=SL117782755-158439" }, "r458": { "Name": "Accounting Standards Codification", "Paragraph": "13H", "Publisher": "FASB", "Section": "55", "SubTopic": "40", "Subparagraph": "(a)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=121639165&loc=SL117783719-158441" }, "r459": { "Name": "Accounting Standards Codification", "Paragraph": "29F", "Publisher": "FASB", "Section": "55", "SubTopic": "40", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=121639165&loc=SL117819544-158441" }, "r46": { "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=120395209&loc=SL114868664-224227" }, "r460": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(e)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641" }, "r461": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(f)(1)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641" }, "r462": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(f)(2)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641" }, "r463": { "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=121370832&loc=SL117420844-207641" }, "r464": { "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=121370832&loc=SL117420844-207641" }, "r465": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(h)(2)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641" }, "r466": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "SubTopic": "320", "Topic": "946", "URI": "http://asc.fasb.org/subtopic&trid=2324412" }, "r467": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "310", "Topic": "948", "URI": "http://asc.fasb.org/extlink&oid=120238483&loc=d3e48678-111004" }, "r468": { "Name": "Exchange Act", "Number": "240", "Publisher": "SEC", "Section": "12", "Subsection": "b" }, "r469": { "Name": "Exchange Act", "Number": "240", "Publisher": "SEC", "Section": "12", "Subsection": "d1-1" }, "r47": { "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=120395209&loc=SL114868664-224227" }, "r470": { "Name": "Form 10-Q", "Number": "240", "Publisher": "SEC", "Section": "13", "Subsection": "a-13" }, "r471": { "Name": "Forms 10-K, 10-Q, 20-F", "Number": "240", "Publisher": "SEC", "Section": "13", "Subsection": "a-1-" }, "r472": { "Name": "Regulation 12B", "Number": "240", "Publisher": "SEC", "Section": "12", "Subsection": "b-2" }, "r473": { "Name": "Regulation S-T", "Number": "232", "Publisher": "SEC", "Section": "405" }, "r48": { "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=120395209&loc=SL114868664-224227" }, "r49": { "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=120395209&loc=SL114868664-224227" }, "r5": { "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" }, "r50": { "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=120395209&loc=SL114868664-224227" }, "r51": { "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=120395209&loc=SL114868664-224227" }, "r52": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3151-108585" }, "r53": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3179-108585" }, "r54": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3213-108585" }, "r55": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3213-108585" }, "r56": { "Name": "Accounting Standards Codification", "Paragraph": "14", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585" }, "r57": { "Name": "Accounting Standards Codification", "Paragraph": "14", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585" }, "r58": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3291-108585" }, "r59": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3291-108585" }, "r6": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(19)(a))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r60": { "Name": "Accounting Standards Codification", "Paragraph": "16", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3337-108585" }, "r61": { "Name": "Accounting Standards Codification", "Paragraph": "17", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3367-108585" }, "r62": { "Name": "Accounting Standards Codification", "Paragraph": "21", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3461-108585" }, "r63": { "Name": "Accounting Standards Codification", "Paragraph": "24", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3521-108585" }, "r64": { "Name": "Accounting Standards Codification", "Paragraph": "25", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3536-108585" }, "r65": { "Name": "Accounting Standards Codification", "Paragraph": "25", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3536-108585" }, "r66": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585" }, "r67": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585" }, "r68": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585" }, "r69": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3044-108585" }, "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": "8", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3095-108585" }, "r71": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121583591&loc=d3e4297-108586" }, "r72": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121583591&loc=d3e4304-108586" }, "r73": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121583591&loc=d3e4313-108586" }, "r74": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121583591&loc=d3e4332-108586" }, "r75": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121583591&loc=SL98516268-108586" }, "r76": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=84158767&loc=d3e18780-107790" }, "r77": { "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" }, "r78": { "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" }, "r79": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08(m)(1)(iii))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690" }, "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": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08.(e),(f))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690" }, "r81": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08.(h)(1)(i))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690" }, "r82": { "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" }, "r83": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "235", "URI": "http://asc.fasb.org/topic&trid=2122369" }, "r84": { "Name": "Accounting Standards Codification", "Paragraph": "23", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=115929471&loc=d3e21914-107793" }, "r85": { "Name": "Accounting Standards Codification", "Paragraph": "24", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=115929471&loc=d3e21930-107793" }, "r86": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=115929471&loc=d3e21711-107793" }, "r87": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)(2)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794" }, "r88": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)(3)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794" }, "r89": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22694-107794" }, "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": "11", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22694-107794" }, "r91": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22583-107794" }, "r92": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22595-107794" }, "r93": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22644-107794" }, "r94": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22644-107794" }, "r95": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22658-107794" }, "r96": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22663-107794" }, "r97": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=d3e1448-109256" }, "r98": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=d3e1377-109256" }, "r99": { "Name": "Accounting Standards Codification", "Paragraph": "16", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=d3e1505-109256" } }, "version": "2.1" }