$CBFV
CB Financial Services, Inc. Stock $cbfv

$cbfv Overview Financials Valuation SEC Filings Company Website

2021 Q2 Form 10-Q Financial Statement

#000160530121000048 Filed on August 09, 2021

Income Statement

Concept	2021 Q2	2020 Q2	2020 Q1
Revenue	$10.82M	$11.73M	$12.33M
YoY Change	-7.73%	-7.44%	0.27%
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	$700.0K	$1.220M	$941.0K
YoY Change	-42.62%	32.61%	3.07%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense	$886.0K	$1.406M	$1.796M
YoY Change	-36.98%	-28.41%	-3.54%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	-$369.0K	$3.598M	$902.0K
YoY Change	-110.26%	-3.36%	-75.24%
Income Tax	-$146.0K	$695.0K	$129.0K
% Of Pretax Income		19.32%	14.3%
Net Earnings	-$223.0K	$2.903M	$773.0K
YoY Change	-107.68%	-2.55%	-73.57%
Net Earnings / Revenue	-2.06%	24.75%	6.27%
Basic Earnings Per Share	-$0.04	$0.54	$0.14
Diluted Earnings Per Share	-$0.04	$0.54	$0.14
COMMON SHARES
Basic Shares Outstanding	5.432M shares	5.394M shares	5.431M shares
Diluted Shares Outstanding	5.432M shares	5.394M shares	5.457M shares

Balance Sheet

Concept	2021 Q2	2020 Q2	2020 Q1
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$172.0M	$131.4M	$78.10M
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	$18.68M	$21.82M	$22.04M
YoY Change	-14.37%	-4.55%	-4.57%
Goodwill	$9.732M	$28.40M	$28.43M
YoY Change	-65.73%	-0.09%	0.09%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$800.0K
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$1.462B	$1.407B	$1.313B
YoY Change	3.87%	7.81%	0.81%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$6.900M	$6.400M	$7.800M
YoY Change	7.81%	-17.95%	1.3%
Accrued Expenses	$1.000M	$1.100M	$1.200M
YoY Change	-9.09%
Deferred Revenue
YoY Change
Short-Term Debt	$39.05M	$42.35M	$34.97M
YoY Change	-7.78%	52.72%	13.94%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$7.900M	$7.500M	$9.000M
YoY Change	5.33%	-3.85%	16.88%
LONG-TERM LIABILITIES
Long-Term Debt	$0.00	$0.00	$0.00
YoY Change
Other Long-Term Liabilities
YoY Change
Total Long-Term Liabilities	$0.00	$0.00	$0.00
YoY Change
TOTAL LIABILITIES
Total Short-Term Liabilities	$7.900M	$7.500M	$9.000M
Total Long-Term Liabilities	$0.00	$0.00	$0.00
Total Liabilities	$1.329B	$1.255B	$1.162B
YoY Change	5.92%	8.2%	0.07%
SHAREHOLDERS EQUITY
Retained Earnings	$51.15M	$68.04M	$66.43M
YoY Change	-24.83%	11.28%	11.72%
Common Stock	$2.367M	$2.367M	$2.367M
YoY Change	0.0%	0.0%	0.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$5.655M	$5.928M	$5.914M
YoY Change	-4.61%	36.28%	35.86%
Treasury Stock Shares	271.9K shares	287.3K shares	$287.3K
Shareholders Equity	$132.5M	$152.4M	$151.5M
YoY Change
Total Liabilities & Shareholders Equity	$1.462B	$1.407B	$1.313B
YoY Change	3.87%	7.81%	0.81%

Cashflow Statement

Concept	2021 Q2	2020 Q2	2020 Q1
OPERATING ACTIVITIES
Net Income	-$223.0K	$2.903M	$773.0K
YoY Change	-107.68%	-2.55%	-73.57%
Depreciation, Depletion And Amortization	$700.0K	$1.220M	$941.0K
YoY Change	-42.62%	32.61%	3.07%
Cash From Operating Activities	-$2.440M	$3.090M	$3.590M
YoY Change	-178.96%	-52.75%	184.47%
INVESTING ACTIVITIES
Capital Expenditures	-$2.040M	-$80.00K	$17.00K
YoY Change	2450.0%	60.0%
Acquisitions
YoY Change
Other Investing Activities	-$36.99M	-$43.08M	$7.900M
YoY Change	-14.14%	20.23%	5.47%
Cash From Investing Activities	-$39.03M	-$43.16M	$7.884M
YoY Change	-9.57%	20.29%	5.27%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net			$1.908M
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-16.52M	93.37M	-$13.59M
YoY Change	-117.69%	-3650.19%	-195.48%
NET CHANGE
Cash From Operating Activities	-2.440M	3.090M	$3.590M
Cash From Investing Activities	-39.03M	-43.16M	$7.884M
Cash From Financing Activities	-16.52M	93.37M	-$13.59M
Net Change In Cash	-57.99M	53.30M	-$2.118M
YoY Change	-208.8%	-266.72%	-109.21%
FREE CASH FLOW
Cash From Operating Activities	-$2.440M	$3.090M	$3.590M
Capital Expenditures	-$2.040M	-$80.00K	$17.00K
Free Cash Flow	-$400.0K	$3.170M	$3.573M
YoY Change	-112.62%	-51.9%	183.12%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
	dei	Entity Central Index Key EntityCentralIndexKey	0001605301
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q2
	dei	Amendment Flag AmendmentFlag	false
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2021-06-30
	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
CY2021Q2	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	156200000	USD
	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
CY2021Q3	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	5380165	shares
CY2020Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	145636000	USD
CY2021Q2	us-gaap	Cash And Due From Banks CashAndDueFromBanks	15810000	USD
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CY2020Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	142897000	USD
CY2021Q2	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	2761000	USD
CY2020Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	2503000	USD
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CY2020Q4	us-gaap	Loans Receivable Held For Sale Amount LoansReceivableHeldForSaleAmount	0	USD
CY2021Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	11544000	USD
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CY2021Q2	us-gaap	Notes Receivable Net NotesReceivableNet	995902000	USD
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CY2021Q2	us-gaap	Disposal Group Including Discontinued Operation Property Plant And Equipment DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipment	795000	USD
CY2020Q4	us-gaap	Disposal Group Including Discontinued Operation Property Plant And Equipment DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipment	0	USD
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CY2021Q2	us-gaap	Goodwill Goodwill	9732000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	9732000	USD
CY2021Q2	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	6186000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	8399000	USD
CY2021Q2	us-gaap	Interest Receivable And Other Assets InterestReceivableAndOtherAssets	13373000	USD
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CY2021Q2	us-gaap	Other Borrowings OtherBorrowings	6000000	USD
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CY2021Q2	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	51146000	USD
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	cbfv	Gain Loss On Purchase Of Tax Credits GainLossOnPurchaseOfTaxCredits	35000	USD
	cbfv	Gain Loss On Purchase Of Tax Credits GainLossOnPurchaseOfTaxCredits	31000	USD
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	us-gaap	Noninterest Income NoninterestIncome	5393000	USD
	us-gaap	Noninterest Income NoninterestIncome	4520000	USD
CY2021Q2	us-gaap	Labor And Related Expense LaborAndRelatedExpense	5076000	USD
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	us-gaap	Labor And Related Expense LaborAndRelatedExpense	9970000	USD
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CY2021Q2	us-gaap	Occupancy Net OccupancyNet	1024000	USD
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CY2021Q2	us-gaap	Equipment Expense EquipmentExpense	311000	USD
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	us-gaap	Equipment Expense EquipmentExpense	577000	USD
	us-gaap	Equipment Expense EquipmentExpense	481000	USD
CY2021Q2	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	607000	USD
CY2020Q2	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	460000	USD
	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	1125000	USD
	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	885000	USD
CY2021Q2	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	249000	USD
CY2020Q2	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	163000	USD
	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	499000	USD
	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	321000	USD
CY2021Q2	us-gaap	Taxes Other TaxesOther	225000	USD
CY2020Q2	us-gaap	Taxes Other TaxesOther	333000	USD
	us-gaap	Taxes Other TaxesOther	490000	USD
	us-gaap	Taxes Other TaxesOther	608000	USD
CY2021Q2	us-gaap	Professional And Contract Services Expense ProfessionalAndContractServicesExpense	750000	USD
CY2020Q2	us-gaap	Professional And Contract Services Expense ProfessionalAndContractServicesExpense	562000	USD
	us-gaap	Professional And Contract Services Expense ProfessionalAndContractServicesExpense	1437000	USD
	us-gaap	Professional And Contract Services Expense ProfessionalAndContractServicesExpense	940000	USD
CY2021Q2	us-gaap	Professional Fees ProfessionalFees	419000	USD
CY2020Q2	us-gaap	Professional Fees ProfessionalFees	171000	USD
	us-gaap	Professional Fees ProfessionalFees	608000	USD
	us-gaap	Professional Fees ProfessionalFees	406000	USD
CY2021Q2	us-gaap	Advertising Expense AdvertisingExpense	193000	USD
CY2020Q2	us-gaap	Advertising Expense AdvertisingExpense	155000	USD
	us-gaap	Advertising Expense AdvertisingExpense	333000	USD
	us-gaap	Advertising Expense AdvertisingExpense	338000	USD
CY2021Q2	cbfv	Other Real Estate Owned Income Expense OtherRealEstateOwnedIncomeExpense	26000	USD
CY2020Q2	cbfv	Other Real Estate Owned Income Expense OtherRealEstateOwnedIncomeExpense	1000	USD
	cbfv	Other Real Estate Owned Income Expense OtherRealEstateOwnedIncomeExpense	64000	USD
	cbfv	Other Real Estate Owned Income Expense OtherRealEstateOwnedIncomeExpense	18000	USD
CY2021Q2	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	503000	USD
CY2020Q2	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	532000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1035000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1064000	USD
CY2021Q2	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	1178000	USD
CY2020Q2	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	0	USD
	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	1178000	USD
	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	0	USD
CY2021Q2	us-gaap	Tangible Asset Impairment Charges TangibleAssetImpairmentCharges	2268000	USD
CY2020Q2	us-gaap	Tangible Asset Impairment Charges TangibleAssetImpairmentCharges	0	USD
	us-gaap	Tangible Asset Impairment Charges TangibleAssetImpairmentCharges	2268000	USD
	us-gaap	Tangible Asset Impairment Charges TangibleAssetImpairmentCharges	0	USD
CY2021Q2	us-gaap	Other Noninterest Expense OtherNoninterestExpense	945000	USD
CY2020Q2	us-gaap	Other Noninterest Expense OtherNoninterestExpense	945000	USD
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	1927000	USD
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	2058000	USD
CY2021Q2	us-gaap	Noninterest Expense NoninterestExpense	13722000	USD
CY2020Q2	us-gaap	Noninterest Expense NoninterestExpense	9071000	USD
	us-gaap	Noninterest Expense NoninterestExpense	23117000	USD
	us-gaap	Noninterest Expense NoninterestExpense	18074000	USD
CY2021Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-369000	USD
CY2020Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	3598000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	3387000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	4500000	USD
CY2021Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-146000	USD
CY2020Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	695000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	765000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	824000	USD
CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	-223000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	2903000	USD
	us-gaap	Net Income Loss NetIncomeLoss	2622000	USD
	us-gaap	Net Income Loss NetIncomeLoss	3676000	USD
CY2021Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.04
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.48
CY2020Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.54
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.68
CY2021Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5432234	shares
CY2020Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5393712	shares
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.68
CY2021Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.04
CY2020Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.54
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.48
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5433298	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5412456	shares
CY2021Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	5432234	shares
CY2020Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	5393770	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	5438401	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	5423770	shares
CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	-223000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	2903000	USD
	us-gaap	Net Income Loss NetIncomeLoss	2622000	USD
	us-gaap	Net Income Loss NetIncomeLoss	3676000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Reclassification Adjustments And Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsAndTax	922000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Reclassification Adjustments And Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsAndTax	-572000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Reclassification Adjustments And Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsAndTax	-1929000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Reclassification Adjustments And Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsAndTax	2946000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Before Reclassification Adjustments Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesBeforeReclassificationAdjustmentsTax	199000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Before Reclassification Adjustments Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesBeforeReclassificationAdjustmentsTax	-120000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Before Reclassification Adjustments Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesBeforeReclassificationAdjustmentsTax	-413000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Before Reclassification Adjustments Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesBeforeReclassificationAdjustmentsTax	619000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	0	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	489000	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
CY2021Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	0	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	103000	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
CY2021Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	723000	USD
CY2020Q1	us-gaap	Stockholders Equity StockholdersEquity	151525000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	2903000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-838000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-838000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-1693000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	1941000	USD
CY2021Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	500000	USD
CY2020Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	2065000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	929000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	5617000	USD
CY2021Q1	us-gaap	Stockholders Equity StockholdersEquity	133776000	USD
CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	-223000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	723000	USD
CY2021Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	125000	USD
CY2021Q2	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	25297	shares
CY2021Q2	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	561000	USD
CY2021Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.24
CY2021Q2	us-gaap	Dividends Common Stock DividendsCommonStock	1304000	USD
CY2021Q2	us-gaap	Stockholders Equity StockholdersEquity	132536000	USD
CY2020Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	111000	USD
CY2020Q2	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	-14000	USD
CY2020Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.24
CY2020Q2	us-gaap	Dividends Common Stock DividendsCommonStock	1295000	USD
CY2020Q2	us-gaap	Stockholders Equity StockholdersEquity	152392000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	134530000	USD
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	25297	shares
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	561000	USD
	us-gaap	Net Income Loss NetIncomeLoss	2622000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-1693000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	246000	USD
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.48
	us-gaap	Dividends Common Stock DividendsCommonStock	2608000	USD
CY2021Q2	us-gaap	Stockholders Equity StockholdersEquity	132536000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	151097000	USD
	us-gaap	Net Income Loss NetIncomeLoss	3676000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	1941000	USD
	us-gaap	Stock Issued During Period Value Restricted Stock Award Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardForfeitures	0	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	256000	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	0.48
	us-gaap	Dividends Common Stock DividendsCommonStock	2592000	USD
CY2020Q2	us-gaap	Stockholders Equity StockholdersEquity	152392000	USD
	us-gaap	Net Income Loss NetIncomeLoss	2622000	USD
	us-gaap	Net Income Loss NetIncomeLoss	3676000	USD
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-32000	USD
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	50000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	1256000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	2158000	USD
	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	-1200000	USD
	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	2800000	USD
	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	1178000	USD
	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	0	USD
	us-gaap	Tangible Asset Impairment Charges TangibleAssetImpairmentCharges	2268000	USD
	us-gaap	Tangible Asset Impairment Charges TangibleAssetImpairmentCharges	0	USD
	us-gaap	Operating Lease Impairment Loss OperatingLeaseImpairmentLoss	227000	USD
	us-gaap	Operating Lease Impairment Loss OperatingLeaseImpairmentLoss	0	USD
	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	1366000	USD
	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	458000	USD
	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	79000	USD
	cbfv	Gain Loss On Purchased Tax Credits GainLossOnPurchasedTaxCredits	35000	USD
	cbfv	Gain Loss On Purchased Tax Credits GainLossOnPurchasedTaxCredits	31000	USD
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	273000	USD
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	277000	USD
	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	3916000	USD
	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	15140000	USD
	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	9134000	USD
	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	14572000	USD
	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	117000	USD
	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	568000	USD
	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	0	USD
	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-16000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	246000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	256000	USD
	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	-266000	USD
	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-3000	USD
	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	17000	USD
	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	247000	USD
	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	1018000	USD
	us-gaap	Operating Lease Payments OperatingLeasePayments	170000	USD
	us-gaap	Operating Lease Payments OperatingLeasePayments	220000	USD
	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-146000	USD
	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-124000	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	11000	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	1077000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	2028000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	6683000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	20412000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	72253000	USD
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	97142000	USD
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	38823000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	11930000	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	-31497000	USD
	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	86434000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2240000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	97000	USD
	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	0	USD
	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	25000	USD
	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	0	USD
	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	42000	USD
	us-gaap	Increase Decrease Of Restricted Investments IncreaseDecreaseOfRestrictedInvestments	-243000	USD
	us-gaap	Increase Decrease Of Restricted Investments IncreaseDecreaseOfRestrictedInvestments	137000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-35300000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-35278000	USD
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	41489000	USD
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	75581000	USD
	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	8051000	USD
	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	11778000	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	2608000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	2592000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	561000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1908000	USD
	cbfv	Proceeds From Payments For Stock Options Exercised ProceedsFromPaymentsForStockOptionsExercised	0	USD
	cbfv	Proceeds From Payments For Stock Options Exercised ProceedsFromPaymentsForStockOptionsExercised	-78000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	44371000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	79781000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	11099000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	51186000	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
CY2021Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	172010000	USD
CY2020Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	131403000	USD
	cbfv	Interest Expense And Accrued Interest On Deposit Accounts InterestExpenseAndAccruedInterestOnDepositAccounts	1916000	USD
	cbfv	Interest Expense And Accrued Interest On Deposit Accounts InterestExpenseAndAccruedInterestOnDepositAccounts	3104000	USD
	us-gaap	Interest Paid Net InterestPaidNet	2044000	USD
	us-gaap	Interest Paid Net InterestPaidNet	3327000	USD
	us-gaap	Income Taxes Paid IncomeTaxesPaid	1160000	USD
	us-gaap	Income Taxes Paid IncomeTaxesPaid	0	USD
	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	11409000	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	102557000	USD
	cbfv	Transfer Of Deposits To Deposits Held For Sale TransferOfDepositsToDepositsHeldForSale	0	USD
	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	0	USD
	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	76000	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	47000	USD
	cbfv	Lease Liability Recognized LeaseLiabilityRecognized	0	USD
	cbfv	Lease Liability Recognized LeaseLiabilityRecognized	47000	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>
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
CY2021Q2	cbfv	Disposal Group Number Of Branches Consolidated DisposalGroupNumberOfBranchesConsolidated	6	branch
CY2021Q2	cbfv	Number Of Branches Divested NumberOfBranchesDivested	2	branch
CY2021Q2	cbfv	Disposal Group Number Of Branches Consolidated DisposalGroupNumberOfBranchesConsolidated	6	branch
CY2021Q2	cbfv	Number Of Branches Consolidated Written Down To Fair Value Of Land NumberOfBranchesConsolidatedWrittenDownToFairValueOfLand	3	branch
CY2021Q2	cbfv	Number Of Branches Consolidated Written Down To Appraised Value NumberOfBranchesConsolidatedWrittenDownToAppraisedValue	2	branch
CY2021Q2	cbfv	Number Of Branches Consolidated Leased NumberOfBranchesConsolidatedLeased	1	branch
CY2021Q2	cbfv	Number Of Branches Divested NumberOfBranchesDivested	2	branch
	cbfv	Disposal Group Property Plant And Equipment Discount Upon Sale DisposalGroupPropertyPlantAndEquipmentDiscountUponSale	338000	USD
CY2021Q2	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	2300000	USD
	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	2300000	USD
CY2021Q2	us-gaap	Restructuring Charges RestructuringCharges	4700000	USD
	us-gaap	Restructuring Charges RestructuringCharges	5100000	USD
	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	2300000	USD
CY2021Q2	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	2300000	USD
	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	1200000	USD
CY2021Q2	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	1200000	USD
CY2021Q2	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	1600000	USD
	us-gaap	Incremental Common Shares Attributable To Conversion Of Debt Securities IncrementalCommonSharesAttributableToConversionOfDebtSecurities	0	shares
CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	-223000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	2903000	USD
	us-gaap	Net Income Loss NetIncomeLoss	2622000	USD
	us-gaap	Net Income Loss NetIncomeLoss	3676000	USD
CY2021Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5432234	shares
CY2020Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5393712	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5433298	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5412456	shares
CY2021Q2	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2020Q2	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	58	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	5103	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	11314	shares
CY2021Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	5432234	shares
CY2020Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	5393770	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	5438401	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	5423770	shares
CY2021Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.04
CY2020Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.54
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.48
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.68
CY2021Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.04
CY2020Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.54
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.48
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.68
CY2021Q2	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	203534000	USD
CY2021Q2	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	3557000	USD
CY2021Q2	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	1380000	USD
CY2021Q2	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	205711000	USD
CY2021Q2	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	2761000	USD
CY2021Q2	us-gaap	Trading Securities TradingSecurities	208472000	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	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	142897000	USD
CY2020Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	2503000	USD
CY2020Q4	us-gaap	Trading Securities TradingSecurities	145400000	USD
CY2021Q2	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsNumberOfPositions	14	security
CY2021Q2	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	58690000	USD
CY2021Q2	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	1380000	USD
CY2021Q2	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerNumberOfPositions	0	security
CY2021Q2	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	0	USD
CY2021Q2	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	0	USD
CY2021Q2	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	14	security
CY2021Q2	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	58690000	USD
CY2021Q2	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	1380000	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
CY2021Q2	us-gaap	Debt Securities Available For Sale Restricted DebtSecuritiesAvailableForSaleRestricted	166100000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Restricted DebtSecuritiesAvailableForSaleRestricted	119700000	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
CY2021Q2	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	1736000	USD
CY2021Q2	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	1758000	USD
CY2021Q2	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	6296000	USD
CY2021Q2	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	6331000	USD
CY2021Q2	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	62462000	USD
CY2021Q2	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	62858000	USD
CY2021Q2	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	133040000	USD
CY2021Q2	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	134764000	USD
CY2021Q2	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	203534000	USD
CY2021Q2	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	205711000	USD
CY2021Q2	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	0	USD
CY2020Q2	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	489000	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
CY2021Q2	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	0	USD
CY2020Q2	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
CY2021Q2	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	0	USD
CY2020Q2	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	489000	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
CY2021Q2	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	11000	USD
CY2020Q2	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	28000	USD
	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	233000	USD
	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-410000	USD
CY2021Q2	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	0	USD
CY2020Q2	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	0	USD
	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	0	USD
	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	0	USD
CY2021Q2	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	11000	USD
CY2020Q2	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	28000	USD
	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	233000	USD
	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	-410000	USD
CY2021Q2	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	11000	USD
CY2020Q2	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	517000	USD
	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	458000	USD
	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	79000	USD
CY2021Q2	us-gaap	Notes Receivable Gross NotesReceivableGross	1007446000	USD
CY2021Q2	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
CY2021Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	11544000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	12771000	USD
CY2021Q2	us-gaap	Notes Receivable Net NotesReceivableNet	995902000	USD
CY2020Q4	us-gaap	Notes Receivable Net NotesReceivableNet	1031982000	USD
CY2021Q2	us-gaap	Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums	2400000	USD
CY2020Q4	us-gaap	Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums	2000000.0	USD
CY2020Q4	us-gaap	Loans Receivable Held For Sale Amount LoansReceivableHeldForSaleAmount	0	USD
CY2021Q2	us-gaap	Loans Receivable Held For Sale Amount LoansReceivableHeldForSaleAmount	11409000	USD
CY2021Q2	us-gaap	Notes Receivable Gross NotesReceivableGross	1007446000	USD
CY2020Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	1044753000	USD
CY2021Q2	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	12710000	USD
CY2021Q2	us-gaap	Notes Receivable Gross NotesReceivableGross	1007446000	USD
CY2020Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	10889000	USD
CY2020Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	1044753000	USD
CY2021Q2	us-gaap	Financing Receivable Nonaccrual Interest Income FinancingReceivableNonaccrualInterestIncome	135000	USD
	us-gaap	Financing Receivable Nonaccrual Interest Income FinancingReceivableNonaccrualInterestIncome	196000	USD
CY2020Q2	us-gaap	Financing Receivable Nonaccrual Interest Income FinancingReceivableNonaccrualInterestIncome	37000	USD
	us-gaap	Financing Receivable Nonaccrual Interest Income FinancingReceivableNonaccrualInterestIncome	48000	USD
CY2021Q2	us-gaap	Loans And Leases Receivable Ratio Of Nonperforming Loans To All Loans LoansAndLeasesReceivableRatioOfNonperformingLoansToAllLoans	0.0153
CY2020Q4	us-gaap	Loans And Leases Receivable Ratio Of Nonperforming Loans To All Loans LoansAndLeasesReceivableRatioOfNonperformingLoansToAllLoans	0.0139
CY2021Q2	cbfv	Financing Receivable After Allowance For Credit Loss Ratio Of Nonperforming Assets To All Assets FinancingReceivableAfterAllowanceForCreditLossRatioOfNonperformingAssetsToAllAssets	0.0107
CY2020Q4	cbfv	Financing Receivable After Allowance For Credit Loss Ratio Of Nonperforming Assets To All Assets FinancingReceivableAfterAllowanceForCreditLossRatioOfNonperformingAssetsToAllAssets	0.0104
CY2021Q2	us-gaap	Mortgage Loans In Process Of Foreclosure Amount MortgageLoansInProcessOfForeclosureAmount	1500000	USD
CY2020Q4	us-gaap	Mortgage Loans In Process Of Foreclosure Amount MortgageLoansInProcessOfForeclosureAmount	806000	USD
CY2021Q2	cbfv	Financing Receivable Td Rs Number Of Contracts FinancingReceivableTDRsNumberOfContracts	14	loan
CY2021Q2	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	3300000	USD
CY2020Q4	cbfv	Financing Receivable Td Rs Number Of Contracts FinancingReceivableTDRsNumberOfContracts	17	loan
CY2020Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	4200000	USD
	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	0	loan
CY2021Q2	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	0	loan
	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	1	loan
CY2020Q2	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	1	loan
	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	234000	USD
	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	0	loan
CY2020Q2	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	234000	USD
CY2020Q2	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	234000	USD
	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	234000	USD
CY2020Q2	cbfv	Financing Receivable Allowance For Loan Losses On Troubled Debt Restructuring FinancingReceivableAllowanceForLoanLossesOnTroubledDebtRestructuring	0	USD
	cbfv	Financing Receivable Allowance For Loan Losses On Troubled Debt Restructuring FinancingReceivableAllowanceForLoanLossesOnTroubledDebtRestructuring	0	USD
CY2021Q2	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
CY2020Q2	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	0	loan
CY2021Q2	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	23367000	USD
CY2021Q2	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	23803000	USD
	us-gaap	Impaired Financing Receivable With No Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment	23845000	USD
	us-gaap	Impaired Financing Receivable With No Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod	254000	USD
CY2021Q2	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	2484000	USD
CY2021Q2	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	323000	USD
CY2021Q2	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	2484000	USD
	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	2492000	USD
	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod	33000	USD
CY2021Q2	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	25851000	USD
CY2021Q2	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	323000	USD
CY2021Q2	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	26287000	USD
	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	26337000	USD
	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	287000	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	-18300000	USD
CY2021Q1	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	12725000	USD
CY2021Q2	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	25000	USD
CY2021Q2	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	44000	USD
CY2021Q2	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	-1200000	USD
CY2021Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	11544000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	12771000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	120000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	93000	USD
	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	-1200000	USD
CY2021Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	11544000	USD
CY2021Q2	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	323000	USD
CY2020Q2	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	63000	USD
CY2021Q2	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	11221000	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
CY2020Q1	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	12322000	USD
CY2020Q2	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	37000	USD
CY2020Q2	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	300000	USD
CY2020Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	12648000	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	9867000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	161000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	142000	USD
	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	2800000	USD
CY2020Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	12648000	USD
CY2020Q2	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	599000	USD
CY2020Q2	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	12049000	USD
CY2021Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	11500000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	12800000	USD
	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	-1200000	USD
CY2021Q2	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	-1200000	USD
CY2021Q2	cbfv	Increase Decrease In Net Reservable Loans IncreaseDecreaseInNetReservableLoans	-31700000	USD
CY2021Q2	us-gaap	Financing Receivable Reclassification To Held For Sale FinancingReceivableReclassificationToHeldForSale	11400000	USD
CY2021Q2	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	25851000	USD
CY2021Q2	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	981595000	USD
CY2021Q2	us-gaap	Notes Receivable Gross NotesReceivableGross	1007446000	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	291000	USD
CY2021Q2	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	903000	USD
CY2021Q2	cbfv	Time Deposits Year One TimeDepositsYearOne	70931000	USD
CY2021Q2	cbfv	Time Deposit Maturities Held For Sale Year One TimeDepositMaturitiesHeldForSaleYearOne	7849000	USD
CY2021Q2	us-gaap	Time Deposit Maturities Year One TimeDepositMaturitiesYearOne	63082000	USD
CY2021Q2	cbfv	Time Deposits Year Two TimeDepositsYearTwo	56888000	USD
CY2021Q2	cbfv	Time Deposit Maturities Held For Sale Year Two TimeDepositMaturitiesHeldForSaleYearTwo	4283000	USD
CY2021Q2	us-gaap	Time Deposit Maturities Year Two TimeDepositMaturitiesYearTwo	52605000	USD
CY2021Q2	cbfv	Time Deposits Year Three TimeDepositsYearThree	20342000	USD
CY2021Q2	cbfv	Time Deposit Maturities Held For Sale Year Three TimeDepositMaturitiesHeldForSaleYearThree	2545000	USD
CY2021Q2	us-gaap	Time Deposit Maturities Year Three TimeDepositMaturitiesYearThree	17797000	USD
CY2021Q2	cbfv	Time Deposits Year Four TimeDepositsYearFour	10024000	USD
CY2021Q2	cbfv	Time Deposit Maturities Held For Sale Year Four TimeDepositMaturitiesHeldForSaleYearFour	2121000	USD
CY2021Q2	us-gaap	Time Deposit Maturities Year Four TimeDepositMaturitiesYearFour	7903000	USD
CY2021Q2	cbfv	Time Deposits Year Five TimeDepositsYearFive	10319000	USD
CY2021Q2	cbfv	Time Deposit Maturities Held For Sale Year Five TimeDepositMaturitiesHeldForSaleYearFive	1340000	USD
CY2021Q2	us-gaap	Time Deposit Maturities Year Five TimeDepositMaturitiesYearFive	8979000	USD
CY2021Q2	cbfv	Time Deposits After Year Five TimeDepositsAfterYearFive	4551000	USD
CY2021Q2	cbfv	Time Deposit Maturities Held For Sale After Year Five TimeDepositMaturitiesHeldForSaleAfterYearFive	199000	USD
CY2021Q2	us-gaap	Time Deposit Maturities After Year Five TimeDepositMaturitiesAfterYearFive	4352000	USD
CY2021Q2	cbfv	Time Deposit Maturities TimeDepositMaturities	173055000	USD
CY2021Q2	cbfv	Time Deposit Maturities Held For Sale TimeDepositMaturitiesHeldForSale	18337000	USD
CY2021Q2	us-gaap	Time Deposits TimeDeposits	154718000	USD
CY2021Q2	us-gaap	Time Deposits At Or Above Fdic Insurance Limit TimeDepositsAtOrAboveFDICInsuranceLimit	53600000	USD
CY2020Q4	us-gaap	Time Deposits At Or Above Fdic Insurance Limit TimeDepositsAtOrAboveFDICInsuranceLimit	59200000	USD
CY2021Q2	us-gaap	Deposit Liabilities Reclassified As Loans Receivable1 DepositLiabilitiesReclassifiedAsLoansReceivable1	116000	USD
CY2020Q4	us-gaap	Deposit Liabilities Reclassified As Loans Receivable1 DepositLiabilitiesReclassifiedAsLoansReceivable1	231000	USD
CY2021Q2	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due In Next Rolling Twelve Months FederalHomeLoanBankAdvancesMaturitiesSummaryDueInNextRollingTwelveMonths	3000000	USD
CY2021Q2	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
CY2021Q2	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due In Rolling Year Two FederalHomeLoanBankAdvancesMaturitiesSummaryDueInRollingYearTwo	3000000	USD
CY2021Q2	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
CY2021Q2	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due In Rolling Year Three FederalHomeLoanBankAdvancesMaturitiesSummaryDueInRollingYearThree	0	USD
CY2021Q2	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
CY2021Q2	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	6000000	USD
CY2020Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	8000000	USD
CY2021Q2	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Maximum Amount Available FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresMaximumAmountAvailable	430700000	USD
CY2021Q2	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Amount Of Available Unused Funds FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresAmountOfAvailableUnusedFunds	317800000	USD
CY2021Q2	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Collateral Pledged1 FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged1	577900000	USD
CY2021Q2	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	2500000	USD
CY2020Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	3600000	USD
CY2021Q2	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	323000	USD
CY2020Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	649000	USD
CY2021Q2	us-gaap	Other Commitment OtherCommitment	174490000	USD
CY2020Q4	us-gaap	Other Commitment OtherCommitment	168444000	USD
CY2021Q2	us-gaap	Operating Lease Cost OperatingLeaseCost	88000	USD
CY2020Q2	us-gaap	Operating Lease Cost OperatingLeaseCost	119000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	183000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	235000	USD
CY2021Q2	us-gaap	Short Term Lease Cost ShortTermLeaseCost	9000	USD
CY2020Q2	us-gaap	Short Term Lease Cost ShortTermLeaseCost	0	USD
	us-gaap	Short Term Lease Cost ShortTermLeaseCost	17000	USD
	us-gaap	Short Term Lease Cost ShortTermLeaseCost	0	USD
CY2021Q2	us-gaap	Variable Lease Cost VariableLeaseCost	8000	USD
	us-gaap	Lease Cost LeaseCost	216000	USD
	us-gaap	Lease Cost LeaseCost	253000	USD
CY2020Q2	us-gaap	Variable Lease Cost VariableLeaseCost	9000	USD
	us-gaap	Variable Lease Cost VariableLeaseCost	16000	USD
	us-gaap	Variable Lease Cost VariableLeaseCost	18000	USD
CY2021Q2	us-gaap	Lease Cost LeaseCost	105000	USD
CY2020Q2	us-gaap	Lease Cost LeaseCost	128000	USD
CY2021Q2	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	809000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	1206000	USD
CY2021Q2	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P7Y21D
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P6Y11M12D
CY2021Q2	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0244
CY2020Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0239
CY2021Q2	us-gaap	Lessee Operating Lease Liability Payments Due Next Rolling Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextRollingTwelveMonths	328000	USD
CY2021Q2	us-gaap	Lessee Operating Lease Liability Payments Due In Rolling Year Two LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearTwo	216000	USD
CY2021Q2	us-gaap	Lessee Operating Lease Liability Payments Due In Rolling Year Three LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearThree	116000	USD
CY2021Q2	us-gaap	Lessee Operating Lease Liability Payments Due In Rolling Year Four LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFour	105000	USD
CY2021Q2	us-gaap	Lessee Operating Lease Liability Payments Due In Rolling Year Five LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFive	45000	USD
CY2021Q2	us-gaap	Lessee Operating Lease Liability Payments Due After Rolling Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterRollingYearFive	341000	USD
CY2021Q2	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	1151000	USD
CY2021Q2	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	112000	USD
CY2021Q2	us-gaap	Operating Lease Liability OperatingLeaseLiability	1039000	USD
CY2021Q2	cbfv	Disposal Group Number Of Branches Consolidated DisposalGroupNumberOfBranchesConsolidated	6	branch
CY2021Q2	cbfv	Number Of Branches Consolidated Leased NumberOfBranchesConsolidatedLeased	1	branch
CY2021Q2	us-gaap	Other Labor Related Expenses OtherLaborRelatedExpenses	141000	USD
CY2020Q2	us-gaap	Other Labor Related Expenses OtherLaborRelatedExpenses	147000	USD
	us-gaap	Other Labor Related Expenses OtherLaborRelatedExpenses	290000	USD
	us-gaap	Other Labor Related Expenses OtherLaborRelatedExpenses	293000	USD
CY2021Q2	us-gaap	Supplies Expense SuppliesExpense	65000	USD
CY2020Q2	us-gaap	Supplies Expense SuppliesExpense	139000	USD
	us-gaap	Supplies Expense SuppliesExpense	164000	USD
	us-gaap	Supplies Expense SuppliesExpense	240000	USD
CY2021Q2	us-gaap	Postage Expense PostageExpense	115000	USD
CY2020Q2	us-gaap	Postage Expense PostageExpense	55000	USD
	us-gaap	Postage Expense PostageExpense	178000	USD
	us-gaap	Postage Expense PostageExpense	116000	USD
CY2021Q2	us-gaap	Communication Communication	140000	USD
CY2020Q2	us-gaap	Communication Communication	132000	USD
	us-gaap	Communication Communication	328000	USD
	us-gaap	Communication Communication	301000	USD
CY2021Q2	cbfv	Charitable Contributions Expense CharitableContributionsExpense	21000	USD
CY2020Q2	cbfv	Charitable Contributions Expense CharitableContributionsExpense	16000	USD
	cbfv	Charitable Contributions Expense CharitableContributionsExpense	35000	USD
	cbfv	Charitable Contributions Expense CharitableContributionsExpense	67000	USD
CY2021Q2	cbfv	Dues And Subscriptions Expense DuesAndSubscriptionsExpense	37000	USD
CY2020Q2	cbfv	Dues And Subscriptions Expense DuesAndSubscriptionsExpense	41000	USD
	cbfv	Dues And Subscriptions Expense DuesAndSubscriptionsExpense	88000	USD
	cbfv	Dues And Subscriptions Expense DuesAndSubscriptionsExpense	117000	USD
CY2021Q2	us-gaap	Loan Portfolio Expense LoanPortfolioExpense	110000	USD
CY2020Q2	us-gaap	Loan Portfolio Expense LoanPortfolioExpense	125000	USD
	us-gaap	Loan Portfolio Expense LoanPortfolioExpense	202000	USD
	us-gaap	Loan Portfolio Expense LoanPortfolioExpense	270000	USD
CY2021Q2	cbfv	Meals And Entertainment Expense MealsAndEntertainmentExpense	26000	USD
CY2020Q2	cbfv	Meals And Entertainment Expense MealsAndEntertainmentExpense	34000	USD
	cbfv	Meals And Entertainment Expense MealsAndEntertainmentExpense	60000	USD
	cbfv	Meals And Entertainment Expense MealsAndEntertainmentExpense	74000	USD
CY2021Q2	cbfv	Travel Expense TravelExpense	28000	USD
CY2020Q2	cbfv	Travel Expense TravelExpense	20000	USD
	cbfv	Travel Expense TravelExpense	50000	USD
	cbfv	Travel Expense TravelExpense	74000	USD
CY2021Q2	cbfv	Training Expense TrainingExpense	7000	USD
CY2020Q2	cbfv	Training Expense TrainingExpense	7000	USD
	cbfv	Training Expense TrainingExpense	24000	USD
	cbfv	Training Expense TrainingExpense	14000	USD
CY2021Q2	cbfv	Bank Assessment Expense BankAssessmentExpense	44000	USD
CY2020Q2	cbfv	Bank Assessment Expense BankAssessmentExpense	44000	USD
	cbfv	Bank Assessment Expense BankAssessmentExpense	88000	USD
	cbfv	Bank Assessment Expense BankAssessmentExpense	88000	USD
CY2021Q2	us-gaap	General Insurance Expense GeneralInsuranceExpense	59000	USD
CY2020Q2	us-gaap	General Insurance Expense GeneralInsuranceExpense	58000	USD
	us-gaap	General Insurance Expense GeneralInsuranceExpense	119000	USD
	us-gaap	General Insurance Expense GeneralInsuranceExpense	114000	USD
CY2021Q2	us-gaap	Other Nonrecurring Expense OtherNonrecurringExpense	152000	USD
CY2020Q2	us-gaap	Other Nonrecurring Expense OtherNonrecurringExpense	127000	USD
	us-gaap	Other Nonrecurring Expense OtherNonrecurringExpense	301000	USD
	us-gaap	Other Nonrecurring Expense OtherNonrecurringExpense	290000	USD
CY2021Q2	us-gaap	Other Noninterest Expense OtherNoninterestExpense	945000	USD
CY2020Q2	us-gaap	Other Noninterest Expense OtherNoninterestExpense	945000	USD
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	1927000	USD
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	2058000	USD
	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	2	segment
CY2021Q2	us-gaap	Assets Assets	1461613000	USD
CY2021Q2	us-gaap	Liabilities Liabilities	1329077000	USD
CY2021Q2	us-gaap	Stockholders Equity StockholdersEquity	132536000	USD
CY2020Q4	us-gaap	Assets Assets	1416720000	USD
CY2020Q4	us-gaap	Liabilities Liabilities	1282190000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	134530000	USD
CY2021Q2	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	10820000	USD
CY2021Q2	us-gaap	Interest Expense InterestExpense	886000	USD
CY2021Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	9934000	USD
CY2021Q2	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	-1200000	USD
CY2021Q2	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	11134000	USD
CY2021Q2	us-gaap	Noninterest Income NoninterestIncome	2219000	USD
CY2021Q2	us-gaap	Noninterest Expense NoninterestExpense	13722000	USD
CY2021Q2	us-gaap	Income Loss From Subsidiaries Before Tax IncomeLossFromSubsidiariesBeforeTax	0	USD
CY2021Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-369000	USD
CY2021Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-146000	USD
CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	-223000	USD
	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	21808000	USD
	us-gaap	Interest Expense InterestExpense	1897000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	19911000	USD
	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	-1200000	USD
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	21111000	USD
	us-gaap	Noninterest Income NoninterestIncome	5393000	USD
	us-gaap	Noninterest Expense NoninterestExpense	23117000	USD
	us-gaap	Income Loss From Subsidiaries Before Tax IncomeLossFromSubsidiariesBeforeTax	0	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	3387000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	765000	USD
	us-gaap	Net Income Loss NetIncomeLoss	2622000	USD
CY2020Q2	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	11727000	USD
CY2020Q2	us-gaap	Interest Expense InterestExpense	1406000	USD
CY2020Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	10321000	USD
CY2020Q2	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	300000	USD
CY2020Q2	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	10021000	USD
CY2020Q2	us-gaap	Noninterest Income NoninterestIncome	2648000	USD
CY2020Q2	us-gaap	Noninterest Expense NoninterestExpense	9071000	USD
CY2020Q2	us-gaap	Income Loss From Subsidiaries Before Tax IncomeLossFromSubsidiariesBeforeTax	0	USD
CY2020Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	3598000	USD
CY2020Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	695000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	2903000	USD
	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	24056000	USD
	us-gaap	Interest Expense InterestExpense	3202000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	20854000	USD
	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	2800000	USD
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	18054000	USD
	us-gaap	Noninterest Income NoninterestIncome	4520000	USD
	us-gaap	Noninterest Expense NoninterestExpense	18074000	USD
	us-gaap	Income Loss From Subsidiaries Before Tax IncomeLossFromSubsidiariesBeforeTax	0	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	4500000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	824000	USD
	us-gaap	Net Income Loss NetIncomeLoss	3676000	USD
CY2021Q2	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	15903000	USD
CY2021Q2	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	8539000	USD
	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	1178000	USD
CY2021Q2	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	6186000	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
CY2021Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear	891000	USD
CY2021Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear	891000	USD
CY2021Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	1782000	USD
CY2021Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	1782000	USD
CY2021Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	1147000	USD
CY2021Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	189000	USD
CY2021Q2	cbfv	Finite Lived Intangible Asset Expected Amortization After Year Four FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour	395000	USD
CY2021Q2	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	6186000	USD
CY2021Q1	cbfv	Servicing Asset At Fair Value Before Valuation Allowance ServicingAssetAtFairValueBeforeValuationAllowance	967000	USD
CY2020Q1	cbfv	Servicing Asset At Fair Value Before Valuation Allowance ServicingAssetAtFairValueBeforeValuationAllowance	992000	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
CY2021Q2	us-gaap	Servicing Asset At Fair Value Additions ServicingAssetAtFairValueAdditions	15000	USD
CY2020Q2	us-gaap	Servicing Asset At Fair Value Additions ServicingAssetAtFairValueAdditions	91000	USD
	us-gaap	Servicing Asset At Fair Value Additions ServicingAssetAtFairValueAdditions	32000	USD
	us-gaap	Servicing Asset At Fair Value Additions ServicingAssetAtFairValueAdditions	137000	USD
CY2021Q2	us-gaap	Amortization Of Mortgage Servicing Rights Ms Rs AmortizationOfMortgageServicingRightsMSRs	80000	USD
CY2020Q2	us-gaap	Amortization Of Mortgage Servicing Rights Ms Rs AmortizationOfMortgageServicingRightsMSRs	51000	USD
	us-gaap	Amortization Of Mortgage Servicing Rights Ms Rs AmortizationOfMortgageServicingRightsMSRs	159000	USD
	us-gaap	Amortization Of Mortgage Servicing Rights Ms Rs AmortizationOfMortgageServicingRightsMSRs	106000	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
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
CY2021Q1	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	201000	USD
CY2020Q1	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	71000	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
CY2021Q2	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Provisions Recoveries ValuationAllowanceForImpairmentOfRecognizedServicingAssetsProvisionsRecoveries	-12000	USD
CY2020Q2	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Provisions Recoveries ValuationAllowanceForImpairmentOfRecognizedServicingAssetsProvisionsRecoveries	-269000	USD
	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Provisions Recoveries ValuationAllowanceForImpairmentOfRecognizedServicingAssetsProvisionsRecoveries	160000	USD
	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Provisions Recoveries ValuationAllowanceForImpairmentOfRecognizedServicingAssetsProvisionsRecoveries	-269000	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
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
CY2021Q2	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	689000	USD
CY2020Q2	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	692000	USD
CY2021Q2	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	689000	USD
CY2020Q2	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	692000	USD
CY2021Q2	cbfv	Real Estate Loans Serviced For Others RealEstateLoansServicedForOthers	96700000	USD
CY2020Q4	cbfv	Real Estate Loans Serviced For Others RealEstateLoansServicedForOthers	105800000	USD

Files In Submission

Name	View Source	Status
0001605301-21-000048-index-headers.html	Edgar Link	pending
0001605301-21-000048-index.html	Edgar Link	pending
0001605301-21-000048.txt	Edgar Link	pending
0001605301-21-000048-xbrl.zip	Edgar Link	pending
cbfv-20210630.htm	Edgar Link	pending
cbfv-20210630.xsd	Edgar Link	pending
cbfv-20210630xex311ceocert.htm	Edgar Link	pending
cbfv-20210630xex312cfocert.htm	Edgar Link	pending
cbfv-20210630xex321ceoandc.htm	Edgar Link	pending
cbfv-20210630_cal.xml	Edgar Link	unprocessable
cbfv-20210630_def.xml	Edgar Link	unprocessable
cbfv-20210630_g1.jpg	Edgar Link	pending
cbfv-20210630_htm.xml	Edgar Link	completed
cbfv-20210630_lab.xml	Edgar Link	unprocessable
cbfv-20210630_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
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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 Q2 Form 10-Q Financial Statement

#000160530121000048 Filed on August 09, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CBFV CB Financial Services, Inc. Stock $cbfv

2021 Q2 Form 10-Q Financial Statement

#000160530121000048 Filed on August 09, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CBFV
CB Financial Services, Inc. Stock $cbfv