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Loans And Leases (Nonaccrual Loans As Troubled Debt Restructuring) (Details) $ in Thousands | Dec. 31, 2022 USD ($)
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Financing Receivable, Modifications [Line Items] |
Nonaccrual modified and identified as TDRs | $ 80
Commercial Portfolio Segment [Member] |
Financing Receivable, Modifications [Line Items] |
Nonaccrual modified and identified as TDRs | $ 80

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- Definition Financing Receivable Recorded Investment Nonaccrual Trouble Debt Restructured + References No definition available. + Details
Name: | cfbk_FinancingReceivableRecordedInvestmentNonaccrualTroubleDebtRestructured
Namespace Prefix: | cfbk_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_FinancingReceivableModificationsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |