Document And Entity Information
Due after ten years, fair value
cbfv_OtherRealEstateOwnedNumberOfPropertiesSold
Number of Loans Transferred to Other Real Estate Owned
Represents the number of OREO properties sold during the period.
Note To Financial Statement Details Textual
Significant Accounting Policies
Note 2 - Earnings Per Share
Due in one year or less, amortized cost
Note 3 - Investment Securities
Note 4 - Loans and Allowance for Loan Losses
Due in one year or less, fair value
Note 5 - Deposits
Due after one year through five years, fair value
Note 6 - Short-term Borrowings
Due after five years through ten years, fair value
Note 7 - Other Borrowed Funds
Note 8 - Fair Value Disclosure
Note 9 - Commitments and Contingent Liabilities
Note 10 - Leases
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Note 11 - Other Noninterest Expense
Unrealized Gains on Available-for-Sale Securities Net of Income, Net of Income Tax Expense of $739 and $622 for the Three Months Ended March 31, 2020 and 2019, Respectively
Note 12 - Segment and Related Information
Note 2 - Earnings Per Share - Basic and Diluted Earnings Per Common Share (Details)
us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax
Income, Net of Income Tax Benefit of ($13) for the Three Months Ended March 31, 2019 (1)
Note 3 - Investment Securities - Amortized Cost and Fair Value of Investment Securities Available-for-sale (Details)
Note 3 - Investment Securities - Gross Unrealized Losses and Fair Value by Investment Category and Continuous Unrealized Loss Position (Details)
Schedule of Debt [Table Text Block]
Note 3 - Investment Securities - Maturities of Investment Securities Available-for-sale and Held-to-maturity (Details)
Note 4 - Loans and Allowance for Loan Loss - Composition of Loan Portfolio (Details)
Note 4 - Loans and Allowance for Loan Losses - Credit Quality Information (Details)
Note 4 - Loans and Allowance for Loan Losses - Loans by Aging Categories (Details)
Note 4 - Loans and Allowance for Loan Loss - Nonperforming Assets (Details)
Note 4 - Loans and Allowance for Loan Losses - Loans in Forbearance (Details)
Note 4 - Loans and Allowance for Loan Losses - Loans Classified as TDRs (Details)
US States and Political Subdivisions Debt Securities [Member]
Note 4 - Loans and Allowance for Loan Losses - Impaired Loans (Details)
Note 4 - Loans and Allowance for Loan Losses - Activity in the Allowance for Loan Losses (Details)
Note 4 - Loans and Allowance for Loan Losses - Accretable Discount on Loans Acquired at Fair Value (Details)
Note 4 - Loans and Allowance for Loan Losses - Loans Summarized by Individually Evaluated for Impairment and Collectively Evaluated for Potential Losses (Details)
Note 5 - Deposits - Maturities of Time Deposits (Details)
Note 6 - Short-term Borrowings - Federal Funds Purchased and Short-term Borrowings (Details)
Note 7 - Other Borrowed Funds - Federal Home Loan Bank Advances (Details)
Note 8 - Fair Value Disclosure - Assets and Liabilities Reported Fair Value (Details)
Note 8 - Fair Value Disclosure - Significant Unobservable Inputs Used in the Fair Value Measurements (Details)
Pass [Member]
us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss
Securities in continuous unrealized loss position, twelve months or more, gross unrealized losses
us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss
Securities in continuous unrealized loss position, gross unrealized losses
Note 8 - Fair Value Disclosure - Estimated Fair Value of the Company's Financial Instruments (Details)
Note 9 - Commitments and Contingent Liabilities - Unused and Available Credit Balances of Financial Instruments (Details)
Note 10 - Leases - Operating Leases (Details)
Note 10 - Leases - Maturity of Operating Lease (Details)
Note 11 - Other Noninterest Expense - Components of Other Noninterest Expense (Details)
Note 12 - Segment and Related Information - Reconciliation of Financial Data from Segments to Consolidated (Details)
us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
Securities in continuous unrealized loss position, less than twelve months, gross unrealized losses
Notes To Financial Statements
us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt
Proceeds from Sale of Debt Securities, Available-for-sale
Schedule of Accretable Discount on Loans Acquired at Fair Value [Table Text Block]
Tabular disclosure of accretable discount on loans acquired at fair value.
Notes To Financial Statements [Abstract]
Internal Credit Assessment [Axis]
US Government Agencies Debt Securities [Member]
Internal Credit Assessment [Domain]
us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities
Proceeds From Principal Repayments and Maturities
Other Comprehensive Income
Securities in continuous unrealized loss position, less than twelve months, number of securities
Securities in continuous unrealized loss position, twelve months or more, number of securities
us-gaap_ProceedsFromSaleOfOtherRealEstate
Proceeds From Sales of Other Real Estate Owned and Repossessed Assets
Securities in continuous unrealized loss position, number of securities
Securities in continuous unrealized loss position, fair value
Securities in continuous unrealized loss position, less than twelve months, fair value
Securities in continuous unrealized loss position, twelve months or more, fair value
Nonperforming Loans to Total Loans
Financial Instruments [Domain]
Financial Instrument [Axis]
Lessee, Operating Leases [Text Block]
us-gaap_IncreaseDecreaseInRestrictedCashAndInvestments
Decrease in Restricted Equity Securities
Loans, Notes, Trade and Other Receivables Disclosure [Text Block]
Credit Facility [Axis]
Credit Facility [Domain]
us-gaap_PolicyTextBlockAbstract
Accounting Policies
Special Mention [Member]
Substandard [Member]
Doubtful [Member]
Unlikely to be Collected Financing Receivable [Member]
us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield
Balance
Balance
us-gaap_DebtSecuritiesAvailableForSaleRealizedLoss
Debt Securities, Available-for-sale, Realized Loss
us-gaap_PaymentsToAcquireIntangibleAssets
Asset Acquisition of a Customer List
us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAccretion
Accretable Yield
us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
Purchase of Premises and Equipment
Dilutive Effect of Common Stock Equivalents (Stock Options and Restricted Stock) (in shares)
us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities
Incremental Common Shares Attributable to Conversion of Debt Securities, Total (in shares)
Real estate acquired in settlement of loans
Nonperforming loans
Financing Receivable, Troubled Debt Restructuring
us-gaap_DebtAndEquitySecuritiesGainLoss
Net Loss on Sales of Investment Securities
LIABILITIES
us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts
Pre-modification outstanding recorded investment
Post-modification outstanding recorded investment
SUPPLEMENTAL CASH FLOW INFORMATION:
Total Nonperforming Assets
Assets
TOTAL ASSETS
cbfv_FinancingReceivableTDRSNumberOfContracts
Financing Receivable, TDRs, Number of Contracts
Number of financing receivables that classified as TDRs.
Short-term Borrowings
us-gaap_ShorttermDebtFairValue
Number of contracts
Financing Receivable, Modifications, Number of Termed Out
Impaired Financing Receivables [Table Text Block]
Variable Rate Line of Credit [Member]
Represents information pertaining to a variable rate line of credit.
Financing Receivable, Troubled Debt Restructuring [Table Text Block]
us-gaap_IncomeLossFromSubsidiariesBeforeTax
Undistributed net income of subsidiary
Accrued Interest and Other Assets [Member]
Primary financial statement caption encompassing accrued interest and other assets.
Performance Guarantee [Member]
us-gaap_AdvancesFromFederalHomeLoanBanks
Total, amount
Net Income
Net income
NET INCOME
Financial Instrument Performance Status [Axis]
Intangible Assets, Net
Financial Instrument Performance Status [Domain]
Nonperforming Financial Instruments [Member]
Accruing loans past due 90 days or more
Financing Receivable Credit Quality Indicators [Table Text Block]
Financial Standby Letter of Credit [Member]
Restricted Stock [Member]
Loans current
Share-based Payment Arrangement, Option [Member]
Past due
Nonaccrual loans
Loss Contingency, Nature [Domain]
Financial Asset, 30 to 59 Days Past Due [Member]
Antidilutive Securities [Axis]
Financial Asset, 60 to 89 Days Past Due [Member]
Antidilutive Securities, Name [Domain]
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Past Due [Table Text Block]
Financial Asset, Period Past Due [Axis]
Loss Contingency Nature [Axis]
Financial Asset, Period Past Due [Domain]
Other [Member]
Represents information about other investments.
Commitments and Contingencies Disclosure [Text Block]
Premises and Equipment, Net
Nonperforming Assets to Total Assets
Reflects the percentage derived from dividing nonperforming assets by total assets.
Goodwill
us-gaap_Goodwill
Goodwill, Ending Balance
us-gaap_PaymentsForProceedsFromLoansAndLeases
Net Increase in Loans
Change in Fair Value of Marketable Equity Securities
Change in Fair Value of Marketable Equity Securities
Amount of realized gains (losses) from marketable equity securities.
Net Gain on Purchased Tax Credits
The net amount of gain (loss) on the purchase of tax credits.
cbfv_NumberOfLoansTransferredToOtherRealEstateOwned
Other Real Estate Owned, Number of Properties Sold
Represents the number of loans transferred to OREO during the reporting period.
INVESTING ACTIVITIES
Securities available-for-sale, fair value
us-gaap_AvailableForSaleSecuritiesDebtSecurities
Total, fair value
Debt Securities
us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet
Other, Net
EARNINGS PER SHARE
Earnings Per Share [Text Block]
Federal Funds Purchased [Member]
Equity securities
Marketable Equity Securities
Securities Sold under Agreements to Repurchase [Member]
(Decrease) Increase in Taxes Payable
Exchange Underwriters, Inc [Member]
Represents information about Exchange Underwriters, Inc.
Community Bank [ Member]
Represents information about Community Bank.
Contracted Services
(Decrease) Increase in Accrued Interest Payable
us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
Income before income tax expense (benefit)
Income Before Income Tax Expense
Income Tax Expense
Income tax expense (benefit)
Short-term Debt, Type [Axis]
Short-term Debt, Type [Domain]
us-gaap_MortgageLoansInProcessOfForeclosureAmount
Mortgage Loans in Process of Foreclosure, Amount
Total Real Estate Owned
us-gaap_OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Credit Losses on Debt Securities Held, Ending Balance
CB Financial Services, Inc [Member]
Represents information about CB Financial Services, Inc.
Unrealized Gains (Losses) on Available-for-Sale Securities, Tax
PA Shares Tax
Insurance
Interest Bearing
Unusual Risk or Uncertainty, Nature [Axis]
Unusual Risk or Uncertainty, Nature [Domain]
us-gaap_CashAndCashEquivalentsAtCarryingValue
Total Cash and Due From Banks
CASH AND DUE FROM BANKS AT BEGINNING OF YEAR
CASH AND DUE FROM BANKS AT END OF PERIOD
Salaries and Employee Benefits
Non-Interest Bearing
us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
Individually Evaluated for Impairment
us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
Collectively Evaluated for Potential Impairment
Individually Evaluated for Impairment
Collectively Evaluated for Potential Impairment
Amendment Flag
Recoveries
us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs
Charge-offs
Miscellaneous
us-gaap_ComprehensiveIncomeNetOfTax
Total Comprehensive Income
Provision
New Accounting Pronouncements, Policy [Policy Text Block]
Financial Asset Originated [Member]
cbfv_IncreaseDecreaseInLoansAndLeasesReceivable
Increase (Decrease) in Loans and Leases Receivable
Amount of increase (decrease) in loans and leases receivable during the period.
Cash paid for:
Credit Loss Status [Axis]
Restricted Stock
us-gaap_RestrictedInvestmentsAtFairValue
Credit Loss Status [Domain]
Reclassification, Comparability Adjustment [Policy Text Block]
Purchase of common stock, shares (in shares)
Net Gain (Loss) on Disposal of Fixed Assets
us-gaap_SharesOutstanding
Balance (in shares)
Balance (in shares)
Common stock, shares outstanding (in shares)
us-gaap_GainsLossesOnSalesOfOtherRealEstate
Gains (Losses) on Sales of Other Real Estate
Net Gain on Sales of Other Real Estate Owned and Repossessed Assets
Financing Receivable, Allowance for Credit Loss [Table Text Block]
Net Gain on Sales of Loans
Net Gain on Sales of Loans
Current Fiscal Year End Date
Variable Lease Expense
us-gaap_LeaseCost
Total Lease Expense
Balance at Period End, Weighted Average Rate
Weighted Average Discount Rate
Document Fiscal Period Focus
Operating Lease Expense
Document Fiscal Year Focus
Consolidation, Policy [Policy Text Block]
us-gaap_EquitySecuritiesFvNiRealizedGainLoss
Equity Securities, FV-NI, Realized Gain (Loss), Total
us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs
Allowance for Loan and Lease Losses, Write-offs
Document Period End Date
Equity Securities, Other [Member]
Represents equity securities classified as other.
Total Available-for-Sale Securities
Available-for-Sale
The amount of investment in debt and marketable equity securities.
Weighted Average Lease Term in Years (Year)
Entity Emerging Growth Company
Document Type
Entity Small Business
Entity Shell Company
Document Information [Line Items]
Document Information [Table]
Entity Filer Category
Entity Current Reporting Status
us-gaap_DividendsCommonStock
Dividends Paid
us-gaap_IncreaseDecreaseInAccruedInterestReceivableNet
Decrease (Increase) in Accrued Interest Receivable
us-gaap_IncreaseDecreaseInFinanceReceivables
Increase (Decrease) in Loans and Leases Receivable
Other Portfolio Segment [Member]
Portfolio segment of the company's total financing receivables classified as other.
Bank-Owned Life Insurance
Schedule of Long-term Debt Instruments [Table Text Block]
us-gaap_GoodwillImpairmentLoss
Goodwill, Impairment Loss
Stock-Based Compensation Expense
Statement of Comprehensive Income [Abstract]
Entity Central Index Key
Net Payment of Federal and State Income Taxes
The increase (decrease) during the reporting period in the amounts payable to federal and state taxing authorities for taxes that are based on the reporting entity's earnings, net of amounts receivable from taxing authorities for refunds of overpayments or recoveries of income taxes, and in deferred and other tax liabilities and assets.
Entity Registrant Name
Entity [Domain]
Legal Entity [Axis]
us-gaap_TreasuryStockValueAcquiredCostMethod
Treasury Stock Purchased, at Cost
Amortization of Intangible Assets
us-gaap_FinancingReceivableAllowanceForCreditLosses
Beginning Balance
Ending Balance
OREO
us-gaap_OtherRealEstate
Other Real Estate, Ending Balance
us-gaap_TreasuryStockValue
Treasury Stock, at Cost (287,281 and 217,165 Shares at March 31, 2020 and December 31, 2019, Respectively)
Entity Common Stock, Shares Outstanding (in shares)
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]
Advertising
Loans, Net of Allowance for Loan Losses of $12,322 and $9,867 at March 31, 2020 and December 31, 2019, Respectively
Loans, Net
Total Nonperforming Loans
Loans
Loans and Leases Receivable, Gross, Total
Legal and Professional Fees
Allowance for Loan Losses
Allowance for loan losses
Trading Symbol
Printing and Supplies
us-gaap_UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums
Unamortized Loan Commitment and Origination Fees and Unamortized Discounts or Premiums, Total
Postage
cbfv_OtherRealEstateOwnedIncomeExpense
Other Real Estate Owned (Income)
Represents other real estate owned income (expense).
Telephone
Data Processing
Occupancy
us-gaap_GainLossOnDispositionOfAssets
Net (Gain) Loss on Disposal of Fixed Assets
us-gaap_TableTextBlock
Notes Tables
us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Line of Credit Facility, Maximum Borrowing Capacity
us-gaap_PaymentsForOriginationOfMortgageLoansHeldForSale
Originations of Mortgage Loans for Sale
Exercise of Stock Options
Restricted Stock Awards Granted
us-gaap_ProceedsFromSaleOfMortgageLoansHeldForSale
Proceeds From Mortgage Loans Sold
Due in One Year, weighted average rate
Due After One Year to Two Years, weighted average rate
Net Loss on Sales of Investment Securities
Due After Two Years to Three Years, weighted average rate
Due After Two Years to Three Years, amount
Due in One Year, amount
Due After One Year to Two Years, amount
OREO, measurement input
us-gaap_FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresMaximumAmountAvailable
Federal Home Loan Bank, Advances, General Debt Obligations, Maximum Amount Available
us-gaap_FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresAmountOfAvailableUnusedFunds
Federal Home Loan Bank, Advances, General Debt Obligations, Amount of Available, Unused Funds
us-gaap_LiabilitiesAndStockholdersEquity
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY
Loan Expenses
Reported Value Measurement [Member]
Maximum Amount Outstanding at any Month End, Amount
Average Balance Outstanding During the Period, Amount
Average Balance Outstanding During the Period, Weighted Average Rate
cbfv_GainLossOnPurchasedTaxCredits
Net Gain on Purchased Tax Credits
The value of a gain (loss) on purchased tax credits.
Retained Earnings
Accumulated Other Comprehensive Income
Total, weighted average rate
Debt Disclosure [Text Block]
us-gaap_InterestExpenseOther
Other Borrowings
Short-term Debt [Text Block]
us-gaap_InterestExpense
Interest expense
TOTAL INTEREST EXPENSE
us-gaap_DisclosureTextBlockAbstract
Notes to Financial Statements
Subsequent Event [Member]
Charitable Contributions
Amount of expense for charitable contributions.
Dues and Subscriptions
Amount of expense for dues and subscriptions.
Lease Liabilities
Measurement Input, Discount for Lack of Marketability [Member]
Training
Amount of expense for training.
Subsequent Event Type [Axis]
Meals and Entertainment
Amount of expense for meals and entertainment.
Subsequent Event Type [Domain]
Travel
Amount of expense for travel.
ROU Assets
Non-Employee Compensation
us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue
Total
Less: Present Value Discount
Due After Two Years to Three Years
Short-Term Borrowings
Measurement Input Type [Axis]
Due After Three Years to Four Years
Measurement Input Type [Domain]
Due After Four to Five Years
Due After Five Years
Deposits
us-gaap_InterestExpenseDeposits
Valuation, Market Approach [Member]
Due After One Year to Two Years
Valuation Approach and Technique [Axis]
Valuation Approach and Technique [Domain]
Lessee, Operating Lease, Liability, Maturity [Table Text Block]
Noncash Expense for Stock-Based Compensation
Due in One Year
Accrued Interest and Other Liabilities [Member]
Primary financial statement caption encompassing accrued interest and other liabilities.
INTEREST EXPENSE
Right of use asset recognized
Amount of right-of-use assets recognized.
Other Interest and Dividend Income
Number of loans in forbearance
Number of financing receivables that are in forbearance.
Financing Receivable, Loan Forbearance [Table Text Block]
Tabular disclosure of financing receivable in forbearance.
Dividends
us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments
Net Accretion on Investments
us-gaap_InterestAndDividendIncomeOperating
TOTAL INTEREST AND DIVIDEND INCOME
cbfv_FinancingReceivableNumberOfContracts
Financing Receivable, Number of Contracts
The number of financing receivables contracts.
Commercial and Industrial Segment [Member]
Represents the information pertaining to commercial and industrial segment.
Amount of loans in forbearance
Loans and Leases Receivable in Forbearance, Gross
Amount before allowance of loans and leases in forbearance held in portfolio, including but not limited to, commercial and consumer loans.
cbfv_ServicingAgentFeePercentage
Servicing Agent Fee, Percentage
The percentage fee paid for expenses related to third-party servicing agents.
cbfv_LoanProcessingFeeIncome
Loan Processing Fee Income
The amount of income from loan processing fees.
Other Borrowed Funds
us-gaap_OtherLiabilitiesFairValueDisclosure
us-gaap_DepreciationDepletionAndAmortization
Depreciation and Amortization
Bank Assessment
The amount of bank assessment expense.
Schedule of Operating Leases [Table Text Block]
Tabular disclosure of operating leases.
Over Three Through Four Years
Over Four Through Five Years
Investment Securities:
Over Five Years
Taxable
Tax-Exempt
One Year or Less
Over One Through Two Years
Treasury stock, at cost (in shares)
Over Two Through Three Years
Fair Value, Nonrecurring [Member]
Time Deposit Maturities [Table Text Block]
Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]
Common Stock, $0.4167 Par Value; 35,000,000 Shares Authorized, 5,680,993 Shares Issued and 5,393,712 and 5,463,828 Shares Outstanding at March 31, 2020 and December 31, 2019, Respectively
Adjustments to Reconcile Net Income to Net Cash Provided By Operating Activities:
Measurement Frequency [Axis]
Measurement Frequency [Domain]
Loans, Including Fees
Fair Value, Recurring [Member]
Common stock, shares authorized (in shares)
Common stock, shares issued (in shares)
Common stock, par value (in dollars per share)
Carrying Value, Amount
Market Value, Amount
us-gaap_OperatingLeasePayments
Payments on Operating Leases
Statistical Measurement [Domain]
Maximum [Member]
Minimum [Member]
Weighted Average [Member]
Product and Service [Axis]
Product and Service [Domain]
Statistical Measurement [Axis]
INTEREST AND DIVIDEND INCOME
Preferred Stock, No Par Value; 5,000,000 Shares Authorized
us-gaap_NumberOfReportingUnits
Number of Reporting Units
Interest on deposits and borrowings (including interest credited to deposit accounts of $1,799 and $1,538, respectively)
Income taxes
Preferred stock, par value (in dollars per share)
Goodwill and Intangible Assets, Policy [Policy Text Block]
Preferred stock, shares authorized (in shares)
Portion at Fair Value Measurement [Member] [Default]
Estimate of Fair Value Measurement [Member]
Treasury Stock, Purchases at Cost
Represents the amount of purchases at cost for treasury stock.
Other Income
TOTAL NONINTEREST INCOME
Noninterest income (loss)
Noninterest income
Interest and dividend income
Measurement Basis [Axis]
Fair Value, Inputs, Level 3 [Member]
us-gaap_TimeDepositsAtOrAboveFDICInsuranceLimit
Time Deposits, at or Above FDIC Insurance Limit
Fair Value Hierarchy and NAV [Domain]
Income from Bank-Owned Life Insurance
Income from Bank-Owned Life Insurance
Deposit Liabilities Disclosures [Text Block]
Fair Value, Inputs, Level 1 [Member]
Fair Value, Inputs, Level 2 [Member]
NONINTEREST INCOME
Fair Value Hierarchy and NAV [Axis]
us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss
Net interest income after provision for loan losses
NET INTEREST INCOME AFTER PROVISION FOR LOAN LOSSES
Provision for Loan Losses
Provision For Loan Losses
Provision for Loan and Lease Losses, Total
us-gaap_InterestIncomeExpenseNet
Net interest income
NET INTEREST INCOME
OPERATING ACTIVITIES
Schedule of Segment Reporting Information, by Segment [Table Text Block]
Statement [Line Items]
us-gaap_NumberOfOperatingSegments
Number of Operating Segments
Capital Surplus
Accrued Interest and Other Assets
AOCI Attributable to Parent [Member]
Securities sold not settled
Value of securities sold but not yet settled.
STOCKHOLDERS' EQUITY
Schedule of Fair Value, Off-balance Sheet Risks [Table Text Block]
Loans, Net
us-gaap_LoansReceivableFairValueDisclosure
Segment Reporting Disclosure [Text Block]
Deposit Account [Member]
Fair Value Disclosures [Text Block]
Fair Value, by Balance Sheet Grouping [Table Text Block]
ASSETS
us-gaap_NetCashProvidedByUsedInFinancingActivities
NET CASH (USED IN) PROVIDED BY FINANCING ACTIVITIES
us-gaap_Liabilities
Liabilities
TOTAL LIABILITIES
cbfv_AllowanceForLoanLossesOnTDRs
Related allowance
The amount of reserve to cover probable credit losses related to financing receivables that were modified by troubled debt restructurings during the reporting period and were individually evaluated for impairment
Allowance for Credit Loss Individually Collectively Evaluated for Impairment [Table Text Block]
Tabular disclosure of the balances of financing receivables individually and collectively evaluated for impairment.
us-gaap_NetCashProvidedByUsedInOperatingActivities
NET CASH PROVIDED BY OPERATING ACTIVITIES
us-gaap_NetCashProvidedByUsedInInvestingActivities
NET CASH PROVIDED BY INVESTING ACTIVITIES
us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
(DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS
Schedule of Other Operating Cost and Expense, by Component [Table Text Block]
Consolidation, Eliminations [Member]
Consolidation Items [Domain]
Other Operating Income and Expense [Text Block]
Reportable Legal Entities [Member]
Consolidation Items [Axis]
Consolidated Entities [Axis]
Consolidated Entities [Domain]
Related allowance
Impaired Financing Receivable, Related Allowance
Interest income recognized, with no related allowance
Interest income recognized, with a related allowance
Interest income recognized
Recorded investment, with no related allowance
Recorded investment, with a related allowance
Impaired Financing Receivable, with Related Allowance, Recorded Investment
us-gaap_PaymentsOfDividendsCommonStock
Cash Dividends Paid
Recorded investment
Average recorded investment, with no related allowance
Average recorded investment, with a related allowance
Average recorded investment
Unpaid principal balance, with no related allowance
Unpaid principal balance, with a related allowance
Unpaid principal balance
us-gaap_OtherNoninterestExpense
Other
Total Other Noninterest Expense
us-gaap_NoninterestExpense
Noninterest expense
TOTAL NONINTEREST EXPENSE
Equipment
FDIC Assessment
Retained Earnings [Member]
Treasury Stock [Member]
Loans with Insufficient Debt Service Coverage [Member]
Information related to loans with insufficient debt service coverage.
Loans with Lease Disputes [Member]
Information related to loans with lease disputes.
NONINTEREST EXPENSE
Additional Paid-in Capital [Member]
Impaired Loans, measurement input
Value of input used to measure impaired loans.
Common Stock [Member]
Other Borrowings
Equity Components [Axis]
Equity Component [Domain]
Class of Financing Receivable [Domain]
Unallocated Financing Receivables [Member]
Class of Financing Receivable [Axis]
Financing Receivable Portfolio Segment [Domain]
Commercial Portfolio Segment [Member]
Residential Portfolio Segment [Member]
Consumer Portfolio Segment [Member]
Financing Receivable Portfolio Segment [Axis]
us-gaap_ProceedsFromRepaymentsOfOtherDebt
Principal Payments on Other Borrowed Funds
Other Comprehensive Income:
us-gaap_LineOfCredit
Long-term Line of Credit, Total
Impaired Loans
cbfv_ImpairedLoansFairValue
The fair value portion of impaired loans.
Balance Sheet Location [Axis]
Balance Sheet Location [Domain]
Accounting Policies [Abstract]
Significant Accounting Policies [Text Block]
Balance at Period End, Amount
Short-Term Borrowings
Entity Interactive Data Current
Dividends Declared, per share (in dollars per share)
Dividends paid, per share (in dollars per share)
Title of 12(b) Security
WEIGHTED AVERAGE SHARES OUTSTANDING
Deposits
us-gaap_DepositsFairValueDisclosure
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]
Net Increase (Decrease) in Short-Term Borrowings
Accrued Interest and Other Liabilities
Interest credited to deposit accounts
The amount of cash paid for interest credited to deposit accounts during the period.
Nature of Operations [Policy Text Block]
Disclosure of accounting policy for the nature of an entity's business.
us-gaap_PaymentsToAcquireAvailableForSaleSecurities
Purchases of Debt and Marketable Equity Securities
Proceeds from Sales of Securities
Industry Sector [Domain]
Commercial and Industrial Sector [Member]
us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)
Real Estate Sector [Member]
Diluted (in shares)
Weighted-Average Diluted Common Shares and Common Stock Equivalents Outstanding (in shares)
Equity Securities - Mutual Funds [Member]
Represents the equity securities for mutual funds.
Industry Sector [Axis]
cbfv_RealEstateLoansServicedForOthers
Real Estate Loans Serviced for Others
Represents real estate loans serviced for others which are not included in the Consolidated Statement of Condition.
Statement [Table]
Originated Loans [Member]
Represents the original loan.
Statement of Financial Position [Abstract]
Diluted (in dollars per share)
Diluted (in dollars per share)
Basic (in shares)
cbfv_FinancingReceivableModificationsNumberOfContractsPaidOff
Financing Receivable, Modifications, Number of Contracts Paid Off
Number of financing receivables that have been modified by troubled debt restructurings which were paid off during the period.
Basic (in dollars per share)
Basic (in dollars per share)
Construction Portfolio Segment [Member]
Represents the construction portfolio segment.
Loans, percent
Represents a percentage of a financing receivable portfolio.
Statement of Cash Flows [Abstract]
Statement of Stockholders' Equity [Abstract]
Available-for-sale Securities [Table Text Block]
Income Statement [Abstract]
us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
Other Comprehensive Income, Net of Income Tax Expense (Benefit)
Federal Reserve Bank [Member]
Represents the Federal Reserve Bank.
Various Banks [Member]
Represents various banks.
Financing Receivable, Nonaccrual [Table Text Block]
cbfv_SmallBusinessEmployeesImpactedByApprovedLoans
Small Business Employees Impacted by Approved Loans
The total number of small business employees who will be impacted by the receipt of approved loans.
us-gaap_Deposits
Total Deposits
Other Short-term Debt [Member]
Represents the other short-term debt.
Construction Mortgages [Member]
Represents the construction mortgages.
Hotels [Member]
Related to hotels.
Investments Classified by Contractual Maturity Date [Table Text Block]
Nonowner Occupied Multi-family Apartments [Member]
Related to nonowner occupied multi-family apartments.
Retail Space [Member]
Related to retail space.
Personal Line Of Credit [Member]
Represents the personal line of credit.
cbfv_IncreaseDecreaseInImpairedFinancingReceivableRecordedInvestment
Increase (Decrease) in Impaired Financing Receivable, Recorded Investment
Amount of increase (decrease) in investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.
Overdraft Protection Lines [Member]
Represents the overdraft protection lines.
Hotels in Proximity to Oil and Gas Related Activity [Member]
Related to hotels in proximity to oil and gas related activity.
Schedule of Unrealized Loss on Investments [Table Text Block]
Net (Decrease) Increase in Deposits
Financial instruments
Business Dependent on Oil and Gas Industry [Member]
Related to business dependent on oil and gas industry.
Warehouse Space [Member]
Related to warehouse space.
Time Deposits
Total
Commercial Lines Of Credit [Member]
Represents the commercial lines of credit.
COVID-19 [Member]
Related to COVID-19.
Home Equity Lines of Credit [Member]
Represents the home equity lines of credit.
cbfv_ProceedsFromPaymentsForStockOptionsExercised
Exercise of Stock Options
Amount of cash inflow (outflow) from exercise of option under share-based payment arrangement.
Second Round of the Paycheck Protection Program [Member]
Related to the second round of the paycheck protection program.
Money Market Accounts
First Round of Paycheck Protection Program [Member]
Related to the first round of the paycheck protection program.
NOW Accounts
Lease liability recognized
Amount of increase in lease obligation from new lease.
Non-Interest Bearing Demand Deposits
Savings Accounts
FINANCING ACTIVITIES
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
Interest Bearing
cbfv_InterestBearingDepositsInBanksFairValue
Represents fair value of interest bearing deposits.
Insurance Commissions [Member]
Insurance commission and fee income from direct and agency bill insurance policies. Direct bill policies are invoiced directly from the insurance company provider to the customer, once the customer remits payment for the policy, the insurance company provider then remits the commission or fee income on a monthly basis.
Non-Interest Bearing
cbfv_NoninterestBearingDepositsFairValue
Represents fair value of non-interest bearing deposits.
Accrued Interest Receivable
cbfv_AccruedInterestReceivableFairValue
Represents fair value of accrued interest receivable.
Bank-Owned Life Insurance
cbfv_BankOwnedLifeInsuranceFairValue
Represents fair value of bank-owned life insurance.
Accrued Interest Payable
cbfv_AccruedInterestPayableFairValue
Represents fair value of accrued interest payable.
us-gaap_StockholdersEquity
Stockholders' equity
TOTAL STOCKHOLDERS' EQUITY
Balance
Balance
Class of Stock [Axis]
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
Securities available-for-sale, gross unrealized losses
Securities available-for-sale, gross unrealized gains
Financial Service, Other [Member]
Securities available-for-sale, amortized cost
Total, amortized cost
Due after one year through five years, amortized cost
Due after five years through ten years, amortized cost
Due after ten years, amortized cost