XML 31 R43.htm IDEA: XBRL DOCUMENT v2.4.1.9
Loans (Individually Evaluated For Impairment By Class Of Loans) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Dec. 31, 2014
Financing Receivable, Impaired [Line Items]      
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance $ 3,241us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance   $ 3,329us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance 3,620us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance   3,764us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
Impaired Financing Receivable, Unpaid Principal Balance, Total 6,861us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance   7,093us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
Impaired Financing Receivable, with No Related Allowance, Recorded Investment 2,450us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment   2,533us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
Impaired Financing Receivable, with Related Allowance, Recorded Investment 3,576us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment   3,719us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
Impaired Financing Receivable, Recorded Investment, Total 6,026us-gaap_ImpairedFinancingReceivableRecordedInvestment   6,252us-gaap_ImpairedFinancingReceivableRecordedInvestment
Impaired Financing Receivable, Allocated Loans and Leases 54us-gaap_ImpairedFinancingReceivableRelatedAllowance   64us-gaap_ImpairedFinancingReceivableRelatedAllowance
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment 2,462us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment 2,794us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment  
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment 3,594us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment 5,928us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment  
Impaired Financing Receivable, Average Recorded Investment, Total 6,056us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment 8,722us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment  
Impaired Financing Receivable, with no Related Allowance, Interest Income Recognized 34us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod    
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized 49us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod 52us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod  
Impaired Financing Receivable, Interest Income Recognized, Total 83us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod 52us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod  
Impaired Financing Receivable Allocated Loans and Leases 54cfbk_ImpairedFinancingReceivableAllocatedAllowanceLoansAndLeases   64cfbk_ImpairedFinancingReceivableAllocatedAllowanceLoansAndLeases
Commercial Portfolio Segment [Member]      
Financing Receivable, Impaired [Line Items]      
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance 76us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
  135us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance 480us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
  509us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
Impaired Financing Receivable, with No Related Allowance, Recorded Investment 68us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
  121us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
Impaired Financing Receivable, with Related Allowance, Recorded Investment 480us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
  509us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
Impaired Financing Receivable, Allocated Loans and Leases 28us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
  29us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment 69us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
121us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
 
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment 490us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
817us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
 
Impaired Financing Receivable, with no Related Allowance, Interest Income Recognized 1us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
   
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized 3us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
6us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
 
Single-Family Residential[Member]      
Financing Receivable, Impaired [Line Items]      
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance 331us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateMortgageResidentialSingleFamilyMember
  334us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateMortgageResidentialSingleFamilyMember
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance 122us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateMortgageResidentialSingleFamilyMember
  123us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateMortgageResidentialSingleFamilyMember
Impaired Financing Receivable, with No Related Allowance, Recorded Investment 170us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateMortgageResidentialSingleFamilyMember
  173us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateMortgageResidentialSingleFamilyMember
Impaired Financing Receivable, with Related Allowance, Recorded Investment 122us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateMortgageResidentialSingleFamilyMember
  123us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateMortgageResidentialSingleFamilyMember
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment 171us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateMortgageResidentialSingleFamilyMember
185us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateMortgageResidentialSingleFamilyMember
 
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment 123us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateMortgageResidentialSingleFamilyMember
126us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateMortgageResidentialSingleFamilyMember
 
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized 2us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateMortgageResidentialSingleFamilyMember
2us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateMortgageResidentialSingleFamilyMember
 
Multi-Family Residential [Member]      
Financing Receivable, Impaired [Line Items]      
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance 1,570us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateMortgageResidentialMultiFamilyMember
  1,579us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateMortgageResidentialMultiFamilyMember
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance 51us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateMortgageResidentialMultiFamilyMember
  52us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateMortgageResidentialMultiFamilyMember
Impaired Financing Receivable, with No Related Allowance, Recorded Investment 1,570us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateMortgageResidentialMultiFamilyMember
  1,579us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateMortgageResidentialMultiFamilyMember
Impaired Financing Receivable, with Related Allowance, Recorded Investment 51us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateMortgageResidentialMultiFamilyMember
  52us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateMortgageResidentialMultiFamilyMember
Impaired Financing Receivable, Allocated Loans and Leases     1us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateMortgageResidentialMultiFamilyMember
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment 1,574us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateMortgageResidentialMultiFamilyMember
   
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment 51us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateMortgageResidentialMultiFamilyMember
1,736us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateMortgageResidentialMultiFamilyMember
 
Impaired Financing Receivable, with no Related Allowance, Interest Income Recognized 23us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateMortgageResidentialMultiFamilyMember
   
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized 1us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateMortgageResidentialMultiFamilyMember
1us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateMortgageResidentialMultiFamilyMember
 
Real Estate, Commercial, Non-Owner Occupied [Member]      
Financing Receivable, Impaired [Line Items]      
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance 564us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateCommercialNonOwnerOccupiedMember
  577us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateCommercialNonOwnerOccupiedMember
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance 2,253us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateCommercialNonOwnerOccupiedMember
  2,352us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateCommercialNonOwnerOccupiedMember
Impaired Financing Receivable, with No Related Allowance, Recorded Investment 463us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateCommercialNonOwnerOccupiedMember
  477us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateCommercialNonOwnerOccupiedMember
Impaired Financing Receivable, with Related Allowance, Recorded Investment 2,253us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateCommercialNonOwnerOccupiedMember
  2,352us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateCommercialNonOwnerOccupiedMember
Impaired Financing Receivable, Allocated Loans and Leases 9us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateCommercialNonOwnerOccupiedMember
  17us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateCommercialNonOwnerOccupiedMember
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment 468us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateCommercialNonOwnerOccupiedMember
1,444us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateCommercialNonOwnerOccupiedMember
 
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment 2,256us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateCommercialNonOwnerOccupiedMember
2,122us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateCommercialNonOwnerOccupiedMember
 
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized 33us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
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33us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateCommercialNonOwnerOccupiedMember
 
Real Estate, Commercial, Owner Occupied [Member]      
Financing Receivable, Impaired [Line Items]      
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance 700us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateCommercialOwnerOccupiedMember
  704us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateCommercialOwnerOccupiedMember
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance 375us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateCommercialOwnerOccupiedMember
  380us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateCommercialOwnerOccupiedMember
Impaired Financing Receivable, with No Related Allowance, Recorded Investment 179us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateCommercialOwnerOccupiedMember
  183us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateCommercialOwnerOccupiedMember
Impaired Financing Receivable, with Related Allowance, Recorded Investment 375us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateCommercialOwnerOccupiedMember
  380us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateCommercialOwnerOccupiedMember
Impaired Financing Receivable, Allocated Loans and Leases 2us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateCommercialOwnerOccupiedMember
  2us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateCommercialOwnerOccupiedMember
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment 180us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateCommercialOwnerOccupiedMember
1,044us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateCommercialOwnerOccupiedMember
 
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment 377us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateCommercialOwnerOccupiedMember
394us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateCommercialOwnerOccupiedMember
 
Impaired Financing Receivable, with no Related Allowance, Interest Income Recognized 10us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateCommercialOwnerOccupiedMember
   
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized 5us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateCommercialOwnerOccupiedMember
5us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateCommercialOwnerOccupiedMember
 
Real Estate, Commercial, Land Acquisition [Member]      
Financing Receivable, Impaired [Line Items]      
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance 339us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateCommercialLandAcquisitionMember
  348us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateCommercialLandAcquisitionMember
Impaired Financing Receivable, with Related Allowance, Recorded Investment 295us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateCommercialLandAcquisitionMember
  303us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateCommercialLandAcquisitionMember
Impaired Financing Receivable, Allocated Loans and Leases 15us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateCommercialLandAcquisitionMember
  15us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateCommercialLandAcquisitionMember
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment 297us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateCommercialLandAcquisitionMember
733us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateCommercialLandAcquisitionMember
 
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized $ 5us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateCommercialLandAcquisitionMember
$ 5us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cfbk_RealEstateCommercialLandAcquisitionMember