$CBFV
CB Financial Services, Inc. Stock $cbfv

$cbfv Overview Financials Valuation SEC Filings Company Website

2021 Q4 Form 10-Q Financial Statement

#000160530121000059 Filed on November 08, 2021

Income Statement

Concept	2021 Q4	2021 Q3	2021 Q2
Revenue		$10.79M	$10.82M
YoY Change		-7.46%	-7.73%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$630.0K	$550.0K	$700.0K
YoY Change	-17.11%	30.95%	-42.62%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense		$776.0K	$886.0K
YoY Change		-37.42%	-36.98%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$8.870M	$2.435M	-$369.0K
YoY Change	140.57%	-113.85%	-110.26%
Income Tax	$1.910M	$452.0K	-$146.0K
% Of Pretax Income	21.53%	18.56%
Net Earnings	$6.970M	$1.983M	-$223.0K
YoY Change	126.37%	-111.4%	-107.68%
Net Earnings / Revenue		18.38%	-2.06%
Basic Earnings Per Share		$0.37	-$0.04
Diluted Earnings Per Share	$1.313M	$0.37	-$0.04
COMMON SHARES
Basic Shares Outstanding	5.297M shares	5.373M shares	5.432M shares
Diluted Shares Outstanding		5.390M shares	5.432M shares

Balance Sheet

Concept	2021 Q4	2021 Q3	2021 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$119.7M	$173.5M	$172.0M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$18.40M	$18.50M	$18.68M
YoY Change	-9.37%	-9.48%	-14.37%
Goodwill	$9.732M	$9.732M	$9.732M
YoY Change	0.0%	0.0%	-65.73%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets		$800.0K	$800.0K
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$1.425B	$1.475B	$1.462B
YoY Change	0.62%	5.88%	3.87%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$8.000M	$6.400M	$6.900M
YoY Change	8.11%	1.59%	7.81%
Accrued Expenses	$900.0K	$1.000M	$1.000M
YoY Change	-25.0%	-16.67%	-9.09%
Deferred Revenue
YoY Change
Short-Term Debt	$39.27M	$42.62M	$39.05M
YoY Change	-4.36%	1.34%	-7.78%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$8.900M	$7.400M	$7.900M
YoY Change	3.49%	-1.33%	5.33%
LONG-TERM LIABILITIES
Long-Term Debt	$14.60M	$0.00	$0.00
YoY Change
Other Long-Term Liabilities
YoY Change
Total Long-Term Liabilities	$14.60M	$0.00	$0.00
YoY Change
TOTAL LIABILITIES
Total Short-Term Liabilities	$8.900M	$7.400M	$7.900M
Total Long-Term Liabilities	$14.60M	$0.00	$0.00
Total Liabilities	$1.292B	$1.344B	$1.329B
YoY Change	0.79%	6.69%	5.92%
SHAREHOLDERS EQUITY
Retained Earnings	$57.53M	$51.84M	$51.15M
YoY Change	12.52%	5.05%	-24.83%
Common Stock	$2.367M	$2.367M	$2.367M
YoY Change	0.0%	0.0%	0.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$9.144M	$7.483M	$5.655M
YoY Change	79.51%	28.46%	-4.61%
Treasury Stock Shares	420.3K shares	350.6K shares	271.9K shares
Shareholders Equity	$133.1M	$131.0M	$132.5M
YoY Change
Total Liabilities & Shareholders Equity	$1.425B	$1.475B	$1.462B
YoY Change	0.62%	5.88%	3.87%

Cashflow Statement

Concept	2021 Q4	2021 Q3	2021 Q2
OPERATING ACTIVITIES
Net Income	$6.970M	$1.983M	-$223.0K
YoY Change	126.37%	-111.4%	-107.68%
Depreciation, Depletion And Amortization	$630.0K	$550.0K	$700.0K
YoY Change	-17.11%	30.95%	-42.62%
Cash From Operating Activities	$10.48M	$550.0K	-$2.440M
YoY Change	114.75%	-78.17%	-178.96%
INVESTING ACTIVITIES
Capital Expenditures	-$110.0K	-$40.00K	-$2.040M
YoY Change	-21.43%	-50.0%	2450.0%
Acquisitions
YoY Change
Other Investing Activities	-$13.55M	-$11.14M	-$36.99M
YoY Change	-156.96%	-55.76%	-14.14%
Cash From Investing Activities	-$13.67M	-$11.17M	-$39.03M
YoY Change	-157.83%	-55.78%	-9.57%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-50.66M	12.14M	-16.52M
YoY Change	-350.54%	245.87%	-117.69%
NET CHANGE
Cash From Operating Activities	10.48M	550.0K	-2.440M
Cash From Investing Activities	-13.67M	-11.17M	-39.03M
Cash From Financing Activities	-50.66M	12.14M	-16.52M
Net Change In Cash	-53.85M	1.520M	-57.99M
YoY Change	-210.48%	-107.9%	-208.8%
FREE CASH FLOW
Cash From Operating Activities	$10.48M	$550.0K	-$2.440M
Capital Expenditures	-$110.0K	-$40.00K	-$2.040M
Free Cash Flow	$10.59M	$590.0K	-$400.0K
YoY Change	110.96%	-77.31%	-112.62%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Amendment Flag AmendmentFlag	false
	dei	Entity Central Index Key EntityCentralIndexKey	0001605301
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2021-09-30
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	001-36706
	dei	Entity Registrant Name EntityRegistrantName	CB FINANCIAL SERVICES, INC.
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	PA
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	51-0534721
	dei	Entity Address Address Line1 EntityAddressAddressLine1	100 N. Market Street
	dei	Entity Address City Or Town EntityAddressCityOrTown	Carmichaels
	dei	Entity Address State Or Province EntityAddressStateOrProvince	PA
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	15320
	dei	City Area Code CityAreaCode	724
	dei	Local Phone Number LocalPhoneNumber	966-5041
	dei	Security12b Title Security12bTitle	Common stock, par value $0.4167 per share
	dei	Trading Symbol TradingSymbol	CBFV
	dei	Security Exchange Name SecurityExchangeName	NASDAQ
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Filer Category EntityFilerCategory	Non-accelerated Filer
	dei	Entity Small Business EntitySmallBusiness	true
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Shell Company EntityShellCompany	false
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	us-gaap	Equipment Expense EquipmentExpense	782000	USD
	us-gaap	Equipment Expense EquipmentExpense	701000	USD
CY2021Q3	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	541000	USD
CY2020Q3	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	482000	USD
	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	1666000	USD
	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	1367000	USD
CY2021Q3	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	293000	USD
CY2020Q3	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	172000	USD
	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	792000	USD
	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	493000	USD
CY2021Q3	us-gaap	Taxes Other TaxesOther	224000	USD
CY2020Q3	us-gaap	Taxes Other TaxesOther	355000	USD
	us-gaap	Taxes Other TaxesOther	714000	USD
	us-gaap	Taxes Other TaxesOther	963000	USD
CY2021Q3	us-gaap	Professional And Contract Services Expense ProfessionalAndContractServicesExpense	1441000	USD
	us-gaap	Professional And Contract Services Expense ProfessionalAndContractServicesExpense	2878000	USD
	us-gaap	Professional And Contract Services Expense ProfessionalAndContractServicesExpense	1471000	USD
CY2021Q3	us-gaap	Professional Fees ProfessionalFees	180000	USD
CY2020Q3	us-gaap	Professional And Contract Services Expense ProfessionalAndContractServicesExpense	531000	USD
CY2020Q3	us-gaap	Professional Fees ProfessionalFees	161000	USD
	us-gaap	Professional Fees ProfessionalFees	788000	USD
	us-gaap	Professional Fees ProfessionalFees	567000	USD
CY2021Q3	us-gaap	Advertising Expense AdvertisingExpense	225000	USD
CY2020Q3	us-gaap	Advertising Expense AdvertisingExpense	148000	USD
	us-gaap	Advertising Expense AdvertisingExpense	558000	USD
	us-gaap	Advertising Expense AdvertisingExpense	486000	USD
CY2021Q3	cbfv	Other Real Estate Owned Income Expense OtherRealEstateOwnedIncomeExpense	89000	USD
CY2020Q3	cbfv	Other Real Estate Owned Income Expense OtherRealEstateOwnedIncomeExpense	12000	USD
	cbfv	Other Real Estate Owned Income Expense OtherRealEstateOwnedIncomeExpense	153000	USD
	cbfv	Other Real Estate Owned Income Expense OtherRealEstateOwnedIncomeExpense	30000	USD
CY2021Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	446000	USD
CY2020Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	532000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1481000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1596000	USD
CY2021Q3	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	0	USD
CY2020Q3	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	18693000	USD
	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	1178000	USD
	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	18693000	USD
CY2021Q3	us-gaap	Tangible Asset Impairment Charges TangibleAssetImpairmentCharges	2000	USD
CY2020Q3	us-gaap	Tangible Asset Impairment Charges TangibleAssetImpairmentCharges	884000	USD
	us-gaap	Tangible Asset Impairment Charges TangibleAssetImpairmentCharges	2270000	USD
	us-gaap	Tangible Asset Impairment Charges TangibleAssetImpairmentCharges	884000	USD
CY2021Q3	us-gaap	Other Noninterest Expense OtherNoninterestExpense	903000	USD
CY2020Q3	us-gaap	Other Noninterest Expense OtherNoninterestExpense	919000	USD
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	2830000	USD
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	2977000	USD
CY2021Q3	us-gaap	Noninterest Expense NoninterestExpense	9773000	USD
CY2020Q3	us-gaap	Noninterest Expense NoninterestExpense	28968000	USD
	us-gaap	Noninterest Expense NoninterestExpense	32890000	USD
	us-gaap	Noninterest Expense NoninterestExpense	47042000	USD
CY2021Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	2435000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-17579000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	5822000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-13079000	USD
CY2021Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	452000	USD
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-184000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1217000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	640000	USD
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	1983000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	-17395000	USD
	us-gaap	Net Income Loss NetIncomeLoss	4605000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-13719000	USD
CY2021Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.37
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-3.22
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.85
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-2.54
CY2021Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.37
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-3.22
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.85
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-2.54
CY2021Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5373032	shares
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5395342	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5412989	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5406710	shares
CY2021Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	5390128	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	5395342	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	5420792	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	5406710	shares
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	1983000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	-17395000	USD
	us-gaap	Net Income Loss NetIncomeLoss	4605000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-13719000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Reclassification Adjustments And Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsAndTax	-733000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Reclassification Adjustments And Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsAndTax	-653000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Reclassification Adjustments And Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsAndTax	-2662000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Reclassification Adjustments And Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsAndTax	2292000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Before Reclassification Adjustments Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesBeforeReclassificationAdjustmentsTax	-158000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Before Reclassification Adjustments Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesBeforeReclassificationAdjustmentsTax	-137000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Before Reclassification Adjustments Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesBeforeReclassificationAdjustmentsTax	-571000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Before Reclassification Adjustments Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesBeforeReclassificationAdjustmentsTax	481000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	0	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	0	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	225000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	489000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	0	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	0	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	48000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	103000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-575000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-516000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-2268000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	1425000	USD
CY2021Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	1408000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-17911000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	2337000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-12294000	USD
CY2021Q2	us-gaap	Stockholders Equity StockholdersEquity	132536000	USD
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	1983000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-575000	USD
CY2021Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	169000	USD
CY2021Q3	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	54000	USD
CY2021Q3	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	81676	shares
CY2021Q3	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	1890000	USD
CY2021Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.24
CY2021Q3	us-gaap	Dividends Common Stock DividendsCommonStock	1290000	USD
CY2021Q3	us-gaap	Stockholders Equity StockholdersEquity	130987000	USD
CY2020Q2	us-gaap	Stockholders Equity StockholdersEquity	152392000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	-17395000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-516000	USD
CY2020Q3	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	0	USD
CY2020Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	114000	USD
CY2020Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.24
CY2020Q3	us-gaap	Dividends Common Stock DividendsCommonStock	1296000	USD
CY2020Q3	us-gaap	Stockholders Equity StockholdersEquity	133299000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	134530000	USD
	us-gaap	Net Income Loss NetIncomeLoss	4605000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-2268000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	415000	USD
	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	54000	USD
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	106973	shares
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	2451000	USD
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.72
	us-gaap	Dividends Common Stock DividendsCommonStock	3898000	USD
CY2021Q3	us-gaap	Stockholders Equity StockholdersEquity	130987000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	151097000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-13719000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	1425000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	370000	USD
	us-gaap	Stock Issued During Period Value Restricted Stock Award Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardForfeitures	0	USD
	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	0	USD
	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	-78000	USD
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	67816	shares
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	1908000	USD
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.72
	us-gaap	Dividends Common Stock DividendsCommonStock	3888000	USD
CY2020Q3	us-gaap	Stockholders Equity StockholdersEquity	133299000	USD
	us-gaap	Net Income Loss NetIncomeLoss	4605000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-13719000	USD
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-38000	USD
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	9000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	1810000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	2578000	USD
	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	-1200000	USD
	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	4000000	USD
	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	1178000	USD
	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	0	USD
	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	18693000	USD
	us-gaap	Tangible Asset Impairment Charges TangibleAssetImpairmentCharges	2270000	USD
	us-gaap	Tangible Asset Impairment Charges TangibleAssetImpairmentCharges	884000	USD
	us-gaap	Operating Lease Impairment Loss OperatingLeaseImpairmentLoss	227000	USD
	us-gaap	Operating Lease Impairment Loss OperatingLeaseImpairmentLoss	0	USD
	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	482000	USD
	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	20000	USD
	cbfv	Gain Loss On Purchased Tax Credits GainLossOnPurchasedTaxCredits	53000	USD
	cbfv	Gain Loss On Purchased Tax Credits GainLossOnPurchasedTaxCredits	46000	USD
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	411000	USD
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	417000	USD
	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	8182000	USD
	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	24317000	USD
	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	15289000	USD
	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	23314000	USD
	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	166000	USD
	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	1003000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	2578000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	9198000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	29563000	USD
	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	76000	USD
	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-26000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	415000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	370000	USD
	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	-517000	USD
	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	944000	USD
	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-3000	USD
	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-48000	USD
	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	295000	USD
	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-253000	USD
	us-gaap	Operating Lease Payments OperatingLeasePayments	251000	USD
	us-gaap	Operating Lease Payments OperatingLeasePayments	412000	USD
	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-277000	USD
	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-252000	USD
	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	1311000	USD
	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	0	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	68000	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	1329000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	91219000	USD
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	119924000	USD
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	68851000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	11967000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	17893000	USD
	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	-33378000	USD
	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	100436000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2275000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	184000	USD
	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	0	USD
	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	26000	USD
	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	285000	USD
	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	99000	USD
	us-gaap	Increase Decrease Of Restricted Investments IncreaseDecreaseOfRestrictedInvestments	-533000	USD
	us-gaap	Increase Decrease Of Restricted Investments IncreaseDecreaseOfRestrictedInvestments	305000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-46473000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-60539000	USD
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	52542000	USD
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	80677000	USD
	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	12260000	USD
	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	11490000	USD
	us-gaap	Proceeds From Repayments Of Other Debt ProceedsFromRepaymentsOfOtherDebt	-2000000	USD
	us-gaap	Proceeds From Repayments Of Other Debt ProceedsFromRepaymentsOfOtherDebt	-3000000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	3898000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	3888000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	2451000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1908000	USD
	cbfv	Proceeds From Payments For Stock Options Exercised ProceedsFromPaymentsForStockOptionsExercised	54000	USD
	cbfv	Proceeds From Payments For Stock Options Exercised ProceedsFromPaymentsForStockOptionsExercised	-78000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	56507000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	83293000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	12612000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	31952000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	160911000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	80217000	USD
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	173523000	USD
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	112169000	USD
	cbfv	Interest Expense And Accrued Interest On Deposit Accounts InterestExpenseAndAccruedInterestOnDepositAccounts	2761000	USD
	cbfv	Interest Expense And Accrued Interest On Deposit Accounts InterestExpenseAndAccruedInterestOnDepositAccounts	4382000	USD
	us-gaap	Interest Paid Net InterestPaidNet	2951000	USD
	us-gaap	Interest Paid Net InterestPaidNet	4694000	USD
	us-gaap	Income Taxes Paid IncomeTaxesPaid	1524000	USD
	us-gaap	Income Taxes Paid IncomeTaxesPaid	1785000	USD
	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	10056000	USD
	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	0	USD
	cbfv	Transfer Of Premises And Equipment To Premises And Equipment Held For Sale And Other Assets TransferOfPremisesAndEquipmentToPremisesAndEquipmentHeldForSaleAndOtherAssets	1075000	USD
	cbfv	Transfer Of Premises And Equipment To Premises And Equipment Held For Sale And Other Assets TransferOfPremisesAndEquipmentToPremisesAndEquipmentHeldForSaleAndOtherAssets	0	USD
	cbfv	Transfer Of Deposits To Deposits Held For Sale TransferOfDepositsToDepositsHeldForSale	102647000	USD
	cbfv	Transfer Of Deposits To Deposits Held For Sale TransferOfDepositsToDepositsHeldForSale	0	USD
	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	37000	USD
	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	115000	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	0	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	329000	USD
	cbfv	Lease Liability Recognized LeaseLiabilityRecognized	0	USD
	cbfv	Lease Liability Recognized LeaseLiabilityRecognized	329000	USD
	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<div style="margin-bottom:4pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Reclassifications</span></div><div style="margin-bottom:4pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Certain comparative amounts for the prior year have been reclassified to conform to the current year presentation. Such reclassifications did not affect net income or stockholders’ equity.</span></div>
CY2021Q3	cbfv	Disposal Group Number Of Branches Consolidated DisposalGroupNumberOfBranchesConsolidated	6	branch
CY2021Q3	cbfv	Number Of Branches Divested NumberOfBranchesDivested	2	branch
CY2021Q2	cbfv	Disposal Group Number Of Branches Consolidated DisposalGroupNumberOfBranchesConsolidated	6	branch
CY2021Q2	cbfv	Number Of Branches NumberOfBranches	16	branch
	cbfv	Disposal Group Premium Payment On Assumed Deposits DisposalGroupPremiumPaymentOnAssumedDeposits	0.050
CY2021Q3	cbfv	Disposal Group Number Of Branches Consolidated DisposalGroupNumberOfBranchesConsolidated	6	branch
CY2021Q3	cbfv	Number Of Branches Consolidated Written Down To Fair Value Of Land NumberOfBranchesConsolidatedWrittenDownToFairValueOfLand	3	branch
CY2021Q3	cbfv	Number Of Branches Consolidated Written Down To Appraised Value NumberOfBranchesConsolidatedWrittenDownToAppraisedValue	2	branch
CY2021Q3	cbfv	Number Of Branches Consolidated Leased NumberOfBranchesConsolidatedLeased	1	branch
CY2021Q3	cbfv	Number Of Branches Divested NumberOfBranchesDivested	2	branch
	cbfv	Disposal Group Property Plant And Equipment Discount Upon Sale DisposalGroupPropertyPlantAndEquipmentDiscountUponSale	338000	USD
CY2021Q3	us-gaap	Tangible Asset Impairment Charges TangibleAssetImpairmentCharges	2000	USD
	us-gaap	Tangible Asset Impairment Charges TangibleAssetImpairmentCharges	2300000	USD
CY2021Q3	us-gaap	Restructuring Charges RestructuringCharges	1300000	USD
	us-gaap	Restructuring Charges RestructuringCharges	6300000	USD
	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	2300000	USD
CY2020Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	142897000	USD
	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	1200000	USD
CY2021Q3	cbfv	Severance Costs Other Restructuring Costs And Operating Lease Impairment Losses SeveranceCostsOtherRestructuringCostsAndOperatingLeaseImpairmentLosses	1300000	USD
	cbfv	Severance Costs Other Restructuring Costs And Operating Lease Impairment Losses SeveranceCostsOtherRestructuringCostsAndOperatingLeaseImpairmentLosses	2900000	USD
	us-gaap	Incremental Common Shares Attributable To Conversion Of Debt Securities IncrementalCommonSharesAttributableToConversionOfDebtSecurities	0	shares
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	1983000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	-17395000	USD
	us-gaap	Net Income Loss NetIncomeLoss	4605000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-13719000	USD
CY2021Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5373032	shares
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5395342	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5412989	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5406710	shares
CY2021Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	17096	shares
CY2020Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	7803	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2021Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	5390128	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	5395342	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	5420792	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	5406710	shares
CY2021Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.37
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-3.22
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.85
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-2.54
CY2021Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.37
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-3.22
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.85
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-2.54
CY2021Q3	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	217085000	USD
CY2021Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	3269000	USD
CY2021Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	1825000	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	218529000	USD
CY2021Q3	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	2822000	USD
CY2021Q3	us-gaap	Trading Securities TradingSecurities	221351000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	138566000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	4926000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	595000	USD
CY2020Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	2503000	USD
CY2020Q4	us-gaap	Trading Securities TradingSecurities	145400000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsNumberOfPositions	18	security
CY2021Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	94842000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	1010000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerNumberOfPositions	5	security
CY2021Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	24179000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	815000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	23	security
CY2021Q3	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	119021000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	1825000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsNumberOfPositions	7	security
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	32399000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	595000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerNumberOfPositions	0	security
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	0	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	0	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	7	security
CY2020Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	32399000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	595000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Restricted DebtSecuritiesAvailableForSaleRestricted	184400000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Restricted DebtSecuritiesAvailableForSaleRestricted	119700000	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	2583000	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	2620000	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	4394000	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	4404000	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	70946000	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	71437000	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	139162000	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	140068000	USD
CY2021Q3	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	217085000	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	218529000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	0	USD
CY2020Q3	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	0	USD
	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	225000	USD
	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	489000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	0	USD
CY2020Q3	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	0	USD
	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	0	USD
	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	0	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	0	USD
CY2020Q3	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	0	USD
	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	225000	USD
	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	489000	USD
CY2021Q3	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	18000	USD
CY2020Q3	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-59000	USD
	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	251000	USD
	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-469000	USD
CY2021Q3	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	6000	USD
CY2020Q3	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	0	USD
	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	6000	USD
	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	0	USD
CY2021Q3	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	24000	USD
CY2020Q3	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	-59000	USD
	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	257000	USD
	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	-469000	USD
CY2021Q3	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	24000	USD
CY2020Q3	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	-59000	USD
	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	482000	USD
	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	20000	USD
CY2021Q3	us-gaap	Notes Receivable Gross NotesReceivableGross	1001599000	USD
CY2021Q3	cbfv	Financing Receivable Before Allowance For Credit Loss Percent FinancingReceivableBeforeAllowanceForCreditLossPercent	1.000
CY2020Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	1044753000	USD
CY2020Q4	cbfv	Financing Receivable Before Allowance For Credit Loss Percent FinancingReceivableBeforeAllowanceForCreditLossPercent	1.000
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	11581000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	12771000	USD
CY2021Q3	us-gaap	Notes Receivable Net NotesReceivableNet	990018000	USD
CY2020Q4	us-gaap	Notes Receivable Net NotesReceivableNet	1031982000	USD
CY2021Q3	us-gaap	Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums	2100000	USD
CY2020Q4	us-gaap	Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums	2000000	USD
CY2021Q3	us-gaap	Loans Receivable Held For Sale Amount LoansReceivableHeldForSaleAmount	17407000	USD
CY2021Q3	us-gaap	Notes Receivable Gross NotesReceivableGross	1001599000	USD
CY2020Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	1044753000	USD
CY2021Q3	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	8555000	USD
CY2021Q3	us-gaap	Notes Receivable Gross NotesReceivableGross	1001599000	USD
CY2020Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	10889000	USD
CY2020Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	1044753000	USD
CY2021Q3	us-gaap	Financing Receivable Nonaccrual Interest Income FinancingReceivableNonaccrualInterestIncome	33000	USD
	us-gaap	Financing Receivable Nonaccrual Interest Income FinancingReceivableNonaccrualInterestIncome	136000	USD
CY2020Q3	us-gaap	Financing Receivable Nonaccrual Interest Income FinancingReceivableNonaccrualInterestIncome	20000	USD
	us-gaap	Financing Receivable Nonaccrual Interest Income FinancingReceivableNonaccrualInterestIncome	59000	USD
CY2021Q3	us-gaap	Loans And Leases Receivable Ratio Of Nonperforming Loans To All Loans LoansAndLeasesReceivableRatioOfNonperformingLoansToAllLoans	0.0109
CY2020Q4	us-gaap	Loans And Leases Receivable Ratio Of Nonperforming Loans To All Loans LoansAndLeasesReceivableRatioOfNonperformingLoansToAllLoans	0.0139
CY2021Q3	cbfv	Financing Receivable After Allowance For Credit Loss Ratio Of Nonperforming Assets To All Assets FinancingReceivableAfterAllowanceForCreditLossRatioOfNonperformingAssetsToAllAssets	0.0074
CY2020Q4	cbfv	Financing Receivable After Allowance For Credit Loss Ratio Of Nonperforming Assets To All Assets FinancingReceivableAfterAllowanceForCreditLossRatioOfNonperformingAssetsToAllAssets	0.0104
CY2021Q3	us-gaap	Mortgage Loans In Process Of Foreclosure Amount MortgageLoansInProcessOfForeclosureAmount	775000	USD
CY2020Q4	us-gaap	Mortgage Loans In Process Of Foreclosure Amount MortgageLoansInProcessOfForeclosureAmount	806000	USD
CY2021Q3	cbfv	Financing Receivable Td Rs Number Of Contracts FinancingReceivableTDRsNumberOfContracts	14	loan
CY2021Q3	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	2900000	USD
CY2020Q4	cbfv	Financing Receivable Td Rs Number Of Contracts FinancingReceivableTDRsNumberOfContracts	17	loan
CY2020Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	4200000	USD
CY2021Q3	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	0	loan
	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	0	loan
CY2020Q3	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	2	loan
CY2020Q3	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	542000	USD
CY2020Q3	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	557000	USD
CY2020Q3	cbfv	Financing Receivable Allowance For Loan Losses On Troubled Debt Restructuring FinancingReceivableAllowanceForLoanLossesOnTroubledDebtRestructuring	0	USD
	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	3	loan
	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	776000	USD
	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	791000	USD
	cbfv	Financing Receivable Allowance For Loan Losses On Troubled Debt Restructuring FinancingReceivableAllowanceForLoanLossesOnTroubledDebtRestructuring	0	USD
	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	0	loan
CY2021Q3	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	0	loan
CY2020Q3	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	0	loan
	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	0	loan
CY2021Q3	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	16953000	USD
CY2021Q3	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	17457000	USD
	us-gaap	Impaired Financing Receivable With No Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment	18089000	USD
	us-gaap	Impaired Financing Receivable With No Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod	310000	USD
CY2021Q3	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	272000	USD
CY2021Q3	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	199000	USD
CY2021Q3	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	272000	USD
	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	473000	USD
	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod	16000	USD
CY2021Q3	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	17225000	USD
CY2021Q3	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	199000	USD
CY2021Q3	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	17729000	USD
	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	18562000	USD
	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	326000	USD
CY2020Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	40548000	USD
CY2020Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	41784000	USD
CY2020	us-gaap	Impaired Financing Receivable With No Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment	46076000	USD
CY2020	us-gaap	Impaired Financing Receivable With No Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod	1712000	USD
CY2020Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	3593000	USD
CY2020Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	649000	USD
CY2020Q4	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	3593000	USD
CY2020	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	3699000	USD
CY2020	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod	129000	USD
CY2020Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	44141000	USD
CY2020Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	649000	USD
CY2020Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	45377000	USD
CY2020	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	49775000	USD
CY2020	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	1841000	USD
	cbfv	Increase Decrease In Impaired Financing Receivable Recorded Investment IncreaseDecreaseInImpairedFinancingReceivableRecordedInvestment	-26900000	USD
CY2021Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	11544000	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	19000	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	56000	USD
CY2021Q3	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	0	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	11581000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	12771000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	139000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	149000	USD
	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	-1200000	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	11581000	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	199000	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	11382000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	649000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	12122000	USD
CY2020Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	12648000	USD
CY2020Q3	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	114000	USD
CY2020Q3	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	46000	USD
CY2020Q3	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	1200000	USD
CY2020Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	13780000	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	9867000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	275000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	188000	USD
	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	4000000	USD
CY2020Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	13780000	USD
CY2020Q3	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	2855000	USD
CY2020Q3	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	10925000	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	11600000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	12800000	USD
	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	-1200000	USD
	cbfv	Increase Decrease In Net Reservable Loans IncreaseDecreaseInNetReservableLoans	-20800000	USD
	us-gaap	Financing Receivable Reclassification To Held For Sale FinancingReceivableReclassificationToHeldForSale	17400000	USD
CY2021Q3	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	17225000	USD
CY2021Q3	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	984374000	USD
CY2021Q3	us-gaap	Notes Receivable Gross NotesReceivableGross	1001599000	USD
CY2020Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	44141000	USD
CY2020Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	1000612000	USD
CY2020Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	1044753000	USD
CY2020Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	1194000	USD
	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Accretion CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAccretion	385000	USD
CY2021Q3	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	809000	USD
CY2021Q3	cbfv	Time Deposits Year One TimeDepositsYearOne	68228000	USD
CY2021Q3	cbfv	Time Deposit Maturities Held For Sale Year One TimeDepositMaturitiesHeldForSaleYearOne	8560000	USD
CY2021Q3	us-gaap	Time Deposit Maturities Year One TimeDepositMaturitiesYearOne	59668000	USD
CY2021Q3	cbfv	Time Deposits Year Two TimeDepositsYearTwo	58693000	USD
CY2021Q3	cbfv	Time Deposit Maturities Held For Sale Year Two TimeDepositMaturitiesHeldForSaleYearTwo	4346000	USD
CY2021Q3	us-gaap	Time Deposit Maturities Year Two TimeDepositMaturitiesYearTwo	54347000	USD
CY2021Q3	cbfv	Time Deposits Year Three TimeDepositsYearThree	10758000	USD
CY2021Q3	cbfv	Time Deposit Maturities Held For Sale Year Three TimeDepositMaturitiesHeldForSaleYearThree	1034000	USD
CY2021Q3	us-gaap	Time Deposit Maturities Year Three TimeDepositMaturitiesYearThree	9724000	USD
CY2021Q3	cbfv	Time Deposits Year Four TimeDepositsYearFour	11362000	USD
CY2021Q3	cbfv	Time Deposit Maturities Held For Sale Year Four TimeDepositMaturitiesHeldForSaleYearFour	2415000	USD
CY2021Q3	us-gaap	Time Deposit Maturities Year Four TimeDepositMaturitiesYearFour	8947000	USD
CY2021Q3	cbfv	Time Deposits Year Five TimeDepositsYearFive	9645000	USD
CY2021Q3	cbfv	Time Deposit Maturities Held For Sale Year Five TimeDepositMaturitiesHeldForSaleYearFive	1143000	USD
CY2021Q3	us-gaap	Time Deposit Maturities Year Five TimeDepositMaturitiesYearFive	8502000	USD
CY2021Q3	cbfv	Time Deposits After Year Five TimeDepositsAfterYearFive	3735000	USD
CY2021Q3	cbfv	Time Deposit Maturities Held For Sale After Year Five TimeDepositMaturitiesHeldForSaleAfterYearFive	196000	USD
CY2021Q3	us-gaap	Time Deposit Maturities After Year Five TimeDepositMaturitiesAfterYearFive	3539000	USD
CY2021Q3	cbfv	Time Deposit Maturities TimeDepositMaturities	162421000	USD
CY2021Q3	cbfv	Time Deposit Maturities Held For Sale TimeDepositMaturitiesHeldForSale	17694000	USD
CY2021Q3	us-gaap	Time Deposits TimeDeposits	144727000	USD
CY2021Q3	us-gaap	Time Deposits At Or Above Fdic Insurance Limit TimeDepositsAtOrAboveFDICInsuranceLimit	49100000	USD
CY2020Q4	us-gaap	Time Deposits At Or Above Fdic Insurance Limit TimeDepositsAtOrAboveFDICInsuranceLimit	59200000	USD
CY2021Q3	us-gaap	Deposit Liabilities Reclassified As Loans Receivable1 DepositLiabilitiesReclassifiedAsLoansReceivable1	176000	USD
CY2020Q4	us-gaap	Deposit Liabilities Reclassified As Loans Receivable1 DepositLiabilitiesReclassifiedAsLoansReceivable1	231000	USD
CY2021Q3	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due In Next Rolling Twelve Months FederalHomeLoanBankAdvancesMaturitiesSummaryDueInNextRollingTwelveMonths	3000000	USD
CY2021Q3	us-gaap	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate Of Amounts Due Within One Year Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate	0.0223
CY2020Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due In Next Rolling Twelve Months FederalHomeLoanBankAdvancesMaturitiesSummaryDueInNextRollingTwelveMonths	2000000	USD
CY2020Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate Of Amounts Due Within One Year Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate	0.0212
CY2021Q3	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due In Rolling Year Two FederalHomeLoanBankAdvancesMaturitiesSummaryDueInRollingYearTwo	3000000	USD
CY2021Q3	us-gaap	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate One To Two Years From Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOneToTwoYearsFromBalanceSheetDate	0.0241
CY2020Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due In Rolling Year Two FederalHomeLoanBankAdvancesMaturitiesSummaryDueInRollingYearTwo	3000000	USD
CY2020Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate One To Two Years From Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOneToTwoYearsFromBalanceSheetDate	0.0223
CY2021Q3	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due In Rolling Year Three FederalHomeLoanBankAdvancesMaturitiesSummaryDueInRollingYearThree	0	USD
CY2021Q3	us-gaap	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate Two To Three Years From Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateTwoToThreeYearsFromBalanceSheetDate	0
CY2020Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due In Rolling Year Three FederalHomeLoanBankAdvancesMaturitiesSummaryDueInRollingYearThree	3000000	USD
CY2020Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate Two To Three Years From Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateTwoToThreeYearsFromBalanceSheetDate	0.0241
CY2021Q3	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	6000000	USD
CY2020Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	8000000	USD
CY2021Q3	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Maximum Amount Available FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresMaximumAmountAvailable	420400000	USD
CY2021Q3	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Amount Of Available Unused Funds FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresAmountOfAvailableUnusedFunds	351300000	USD
CY2021Q3	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Collateral Pledged1 FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged1	564100000	USD
CY2021Q3	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	272000	USD
CY2020Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	3600000	USD
CY2021Q3	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	199000	USD
CY2020Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	649000	USD
CY2021Q3	us-gaap	Other Commitment OtherCommitment	169634000	USD
CY2020Q4	us-gaap	Other Commitment OtherCommitment	168444000	USD
CY2021Q3	us-gaap	Operating Lease Cost OperatingLeaseCost	74000	USD
CY2020Q3	us-gaap	Operating Lease Cost OperatingLeaseCost	118000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	257000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	353000	USD
CY2021Q3	us-gaap	Short Term Lease Cost ShortTermLeaseCost	8000	USD
CY2020Q3	us-gaap	Short Term Lease Cost ShortTermLeaseCost	0	USD
	us-gaap	Short Term Lease Cost ShortTermLeaseCost	25000	USD
	us-gaap	Short Term Lease Cost ShortTermLeaseCost	0	USD
CY2021Q3	us-gaap	Variable Lease Cost VariableLeaseCost	8000	USD
CY2020Q3	us-gaap	Variable Lease Cost VariableLeaseCost	10000	USD
	us-gaap	Variable Lease Cost VariableLeaseCost	24000	USD
	us-gaap	Variable Lease Cost VariableLeaseCost	28000	USD
CY2021Q3	us-gaap	Lease Cost LeaseCost	90000	USD
CY2020Q3	us-gaap	Lease Cost LeaseCost	128000	USD
	us-gaap	Lease Cost LeaseCost	306000	USD
	us-gaap	Lease Cost LeaseCost	381000	USD
CY2021Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	741000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	1206000	USD
CY2021Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P7Y1M28D
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P6Y11M12D
CY2021Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0247
CY2020Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0239
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Next Rolling Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextRollingTwelveMonths	309000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due In Rolling Year Two LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearTwo	178000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due In Rolling Year Three LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearThree	113000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due In Rolling Year Four LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFour	90000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due In Rolling Year Five LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFive	45000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due After Rolling Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterRollingYearFive	330000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	1065000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	106000	USD
CY2021Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	959000	USD
CY2021Q2	cbfv	Disposal Group Number Of Branches Consolidated DisposalGroupNumberOfBranchesConsolidated	6	branch
CY2021Q2	cbfv	Number Of Branches Consolidated Leased NumberOfBranchesConsolidatedLeased	1	branch
CY2021Q3	us-gaap	Other Labor Related Expenses OtherLaborRelatedExpenses	184000	USD
CY2020Q3	us-gaap	Other Labor Related Expenses OtherLaborRelatedExpenses	155000	USD
	us-gaap	Other Labor Related Expenses OtherLaborRelatedExpenses	473000	USD
	us-gaap	Other Labor Related Expenses OtherLaborRelatedExpenses	449000	USD
CY2021Q3	us-gaap	Supplies Expense SuppliesExpense	55000	USD
CY2020Q3	us-gaap	Supplies Expense SuppliesExpense	125000	USD
	us-gaap	Supplies Expense SuppliesExpense	218000	USD
	us-gaap	Supplies Expense SuppliesExpense	365000	USD
CY2021Q3	us-gaap	Postage Expense PostageExpense	86000	USD
CY2020Q3	us-gaap	Postage Expense PostageExpense	61000	USD
	us-gaap	Postage Expense PostageExpense	265000	USD
	us-gaap	Postage Expense PostageExpense	176000	USD
CY2021Q3	us-gaap	Communication Communication	145000	USD
CY2020Q3	us-gaap	Communication Communication	108000	USD
	us-gaap	Communication Communication	472000	USD
	us-gaap	Communication Communication	408000	USD
CY2021Q3	cbfv	Charitable Contributions Expense CharitableContributionsExpense	45000	USD
CY2020Q3	cbfv	Charitable Contributions Expense CharitableContributionsExpense	32000	USD
	cbfv	Charitable Contributions Expense CharitableContributionsExpense	80000	USD
	cbfv	Charitable Contributions Expense CharitableContributionsExpense	98000	USD
CY2021Q3	cbfv	Dues And Subscriptions Expense DuesAndSubscriptionsExpense	33000	USD
CY2020Q3	cbfv	Dues And Subscriptions Expense DuesAndSubscriptionsExpense	36000	USD
	cbfv	Dues And Subscriptions Expense DuesAndSubscriptionsExpense	121000	USD
	cbfv	Dues And Subscriptions Expense DuesAndSubscriptionsExpense	153000	USD
CY2021Q3	us-gaap	Loan Portfolio Expense LoanPortfolioExpense	86000	USD
CY2020Q3	us-gaap	Loan Portfolio Expense LoanPortfolioExpense	149000	USD
	us-gaap	Loan Portfolio Expense LoanPortfolioExpense	288000	USD
	us-gaap	Loan Portfolio Expense LoanPortfolioExpense	420000	USD
CY2021Q3	cbfv	Meals And Entertainment Expense MealsAndEntertainmentExpense	31000	USD
CY2020Q3	cbfv	Meals And Entertainment Expense MealsAndEntertainmentExpense	0	USD
	cbfv	Meals And Entertainment Expense MealsAndEntertainmentExpense	91000	USD
	cbfv	Meals And Entertainment Expense MealsAndEntertainmentExpense	74000	USD
CY2021Q3	cbfv	Travel Expense TravelExpense	27000	USD
CY2020Q3	cbfv	Travel Expense TravelExpense	13000	USD
	cbfv	Travel Expense TravelExpense	77000	USD
	cbfv	Travel Expense TravelExpense	87000	USD
CY2021Q3	cbfv	Training Expense TrainingExpense	5000	USD
CY2020Q3	cbfv	Training Expense TrainingExpense	10000	USD
	cbfv	Training Expense TrainingExpense	29000	USD
	cbfv	Training Expense TrainingExpense	24000	USD
CY2021Q3	cbfv	Bank Assessment Expense BankAssessmentExpense	46000	USD
CY2020Q3	cbfv	Bank Assessment Expense BankAssessmentExpense	44000	USD
	cbfv	Bank Assessment Expense BankAssessmentExpense	134000	USD
	cbfv	Bank Assessment Expense BankAssessmentExpense	132000	USD
CY2021Q3	us-gaap	General Insurance Expense GeneralInsuranceExpense	54000	USD
CY2020Q3	us-gaap	General Insurance Expense GeneralInsuranceExpense	59000	USD
	us-gaap	General Insurance Expense GeneralInsuranceExpense	173000	USD
	us-gaap	General Insurance Expense GeneralInsuranceExpense	173000	USD
CY2021Q3	us-gaap	Other Nonrecurring Expense OtherNonrecurringExpense	106000	USD
CY2020Q3	us-gaap	Other Nonrecurring Expense OtherNonrecurringExpense	127000	USD
	us-gaap	Other Nonrecurring Expense OtherNonrecurringExpense	409000	USD
	us-gaap	Other Nonrecurring Expense OtherNonrecurringExpense	418000	USD
CY2021Q3	us-gaap	Other Noninterest Expense OtherNoninterestExpense	903000	USD
CY2020Q3	us-gaap	Other Noninterest Expense OtherNoninterestExpense	919000	USD
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	2830000	USD
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	2977000	USD
	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	2	segment
CY2021Q3	us-gaap	Assets Assets	1474818000	USD
CY2021Q3	us-gaap	Liabilities Liabilities	1343831000	USD
CY2021Q3	us-gaap	Stockholders Equity StockholdersEquity	130987000	USD
CY2020Q4	us-gaap	Assets Assets	1416720000	USD
CY2020Q4	us-gaap	Liabilities Liabilities	1282190000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	134530000	USD
CY2021Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	10786000	USD
CY2021Q3	us-gaap	Interest Expense InterestExpense	776000	USD
CY2021Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	10010000	USD
CY2021Q3	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	0	USD
CY2021Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	10010000	USD
CY2021Q3	us-gaap	Noninterest Income NoninterestIncome	2198000	USD
CY2021Q3	us-gaap	Noninterest Expense NoninterestExpense	9773000	USD
CY2021Q3	us-gaap	Income Loss From Subsidiaries Before Tax IncomeLossFromSubsidiariesBeforeTax	0	USD
CY2021Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	2435000	USD
CY2021Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	452000	USD
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	1983000	USD
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	32594000	USD
	us-gaap	Interest Expense InterestExpense	2673000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	29921000	USD
	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	-1200000	USD
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	31121000	USD
	us-gaap	Noninterest Income NoninterestIncome	7591000	USD
	us-gaap	Noninterest Expense NoninterestExpense	32890000	USD
	us-gaap	Income Loss From Subsidiaries Before Tax IncomeLossFromSubsidiariesBeforeTax	0	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	5822000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1217000	USD
	us-gaap	Net Income Loss NetIncomeLoss	4605000	USD
CY2020Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	11656000	USD
CY2020Q3	us-gaap	Interest Expense InterestExpense	1240000	USD
CY2020Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	10416000	USD
CY2020Q3	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	1200000	USD
CY2020Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	9216000	USD
CY2020Q3	us-gaap	Noninterest Income NoninterestIncome	2173000	USD
CY2020Q3	us-gaap	Noninterest Expense NoninterestExpense	28968000	USD
CY2020Q3	us-gaap	Income Loss From Subsidiaries Before Tax IncomeLossFromSubsidiariesBeforeTax	0	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-17579000	USD
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-184000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	-17395000	USD
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	35712000	USD
	us-gaap	Interest Expense InterestExpense	4442000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	31270000	USD
	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	4000000	USD
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	27270000	USD
	us-gaap	Noninterest Income NoninterestIncome	6693000	USD
	us-gaap	Noninterest Expense NoninterestExpense	47042000	USD
	us-gaap	Income Loss From Subsidiaries Before Tax IncomeLossFromSubsidiariesBeforeTax	0	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-13079000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	640000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-13719000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	15903000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	8985000	USD
	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	1178000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	5740000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	15903000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	7504000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	8399000	USD
CY2021Q2	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	1200000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear	445000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear	445000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	1782000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	1782000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	1147000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	189000	USD
CY2021Q3	cbfv	Finite Lived Intangible Asset Expected Amortization After Year Four FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour	395000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	5740000	USD
CY2021Q2	cbfv	Servicing Asset At Fair Value Before Valuation Allowance ServicingAssetAtFairValueBeforeValuationAllowance	902000	USD
CY2020Q2	cbfv	Servicing Asset At Fair Value Before Valuation Allowance ServicingAssetAtFairValueBeforeValuationAllowance	1032000	USD
CY2020Q4	cbfv	Servicing Asset At Fair Value Before Valuation Allowance ServicingAssetAtFairValueBeforeValuationAllowance	1029000	USD
CY2019Q4	cbfv	Servicing Asset At Fair Value Before Valuation Allowance ServicingAssetAtFairValueBeforeValuationAllowance	1001000	USD
CY2021Q3	us-gaap	Servicing Asset At Fair Value Additions ServicingAssetAtFairValueAdditions	32000	USD
CY2020Q3	us-gaap	Servicing Asset At Fair Value Additions ServicingAssetAtFairValueAdditions	73000	USD
	us-gaap	Servicing Asset At Fair Value Additions ServicingAssetAtFairValueAdditions	64000	USD
	us-gaap	Servicing Asset At Fair Value Additions ServicingAssetAtFairValueAdditions	210000	USD
CY2021Q3	us-gaap	Amortization Of Mortgage Servicing Rights Ms Rs AmortizationOfMortgageServicingRightsMSRs	70000	USD
CY2020Q3	us-gaap	Amortization Of Mortgage Servicing Rights Ms Rs AmortizationOfMortgageServicingRightsMSRs	71000	USD
	us-gaap	Amortization Of Mortgage Servicing Rights Ms Rs AmortizationOfMortgageServicingRightsMSRs	229000	USD
	us-gaap	Amortization Of Mortgage Servicing Rights Ms Rs AmortizationOfMortgageServicingRightsMSRs	177000	USD
CY2021Q3	cbfv	Servicing Asset At Fair Value Before Valuation Allowance ServicingAssetAtFairValueBeforeValuationAllowance	864000	USD
CY2020Q3	cbfv	Servicing Asset At Fair Value Before Valuation Allowance ServicingAssetAtFairValueBeforeValuationAllowance	1034000	USD
CY2021Q3	cbfv	Servicing Asset At Fair Value Before Valuation Allowance ServicingAssetAtFairValueBeforeValuationAllowance	864000	USD
CY2020Q3	cbfv	Servicing Asset At Fair Value Before Valuation Allowance ServicingAssetAtFairValueBeforeValuationAllowance	1034000	USD
CY2021Q2	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	213000	USD
CY2020Q2	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	340000	USD
CY2020Q4	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	373000	USD
CY2019Q4	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	71000	USD
CY2021Q3	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Provisions Recoveries ValuationAllowanceForImpairmentOfRecognizedServicingAssetsProvisionsRecoveries	82000	USD
CY2020Q3	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Provisions Recoveries ValuationAllowanceForImpairmentOfRecognizedServicingAssetsProvisionsRecoveries	0	USD
	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Provisions Recoveries ValuationAllowanceForImpairmentOfRecognizedServicingAssetsProvisionsRecoveries	242000	USD
	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Provisions Recoveries ValuationAllowanceForImpairmentOfRecognizedServicingAssetsProvisionsRecoveries	-269000	USD
CY2021Q3	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	131000	USD
CY2020Q3	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	340000	USD
CY2021Q3	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	131000	USD
CY2020Q3	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	340000	USD
CY2021Q3	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	733000	USD
CY2020Q3	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	694000	USD
CY2021Q3	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	733000	USD
CY2020Q3	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	694000	USD
CY2021Q3	cbfv	Real Estate Loans Serviced For Others RealEstateLoansServicedForOthers	96600000	USD
CY2020Q4	cbfv	Real Estate Loans Serviced For Others RealEstateLoansServicedForOthers	105800000	USD

Files In Submission

Name	View Source	Status
0001605301-21-000059-index-headers.html	Edgar Link	pending
0001605301-21-000059-index.html	Edgar Link	pending
0001605301-21-000059.txt	Edgar Link	pending
0001605301-21-000059-xbrl.zip	Edgar Link	pending
cbfv-20210930.htm	Edgar Link	pending
cbfv-20210930.xsd	Edgar Link	pending
cbfv-20210930xex311ceocert.htm	Edgar Link	pending
cbfv-20210930xex312cfocert.htm	Edgar Link	pending
cbfv-20210930xex321ceoandc.htm	Edgar Link	pending
cbfv-20210930_cal.xml	Edgar Link	unprocessable
cbfv-20210930_def.xml	Edgar Link	unprocessable
cbfv-20210930_g1.jpg	Edgar Link	pending
cbfv-20210930_htm.xml	Edgar Link	completed
cbfv-20210930_lab.xml	Edgar Link	unprocessable
cbfv-20210930_pre.xml	Edgar Link	unprocessable
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$CBFV
CB Financial Services, Inc. Stock $cbfv

2021 Q4 Form 10-Q Financial Statement

#000160530121000059 Filed on November 08, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CBFV CB Financial Services, Inc. Stock $cbfv

2021 Q4 Form 10-Q Financial Statement

#000160530121000059 Filed on November 08, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CBFV
CB Financial Services, Inc. Stock $cbfv