XML 72 R61.htm IDEA: XBRL DOCUMENT v3.19.1

Fair Value (Financial Instruments Measured At Fair Value On A Non-Recurring Basis) (Details) - USD ($)	Mar. 31, 2019	Dec. 31, 2018
Commercial Portfolio Segment [Member]
Impaired loans:
Impaired loans, Fair Value	$ 97,000	$ 100,000
Commercial Portfolio Segment [Member] | Weighted Average [Member] | Measurement Input, Comparability Adjustment [Member]
Impaired loans:
Impaired loans, Measurement Input	3.48	3.48
Single-Family Residential[Member]
Impaired loans:
Impaired loans, Fair Value	$ 109,000	$ 110,000
Single-Family Residential[Member] | Weighted Average [Member] | Measurement Input, Comparability Adjustment [Member]
Impaired loans:
Impaired loans, Measurement Input	3.61	3.61
Real Estate, Commercial, Non-Owner Occupied [Member]
Impaired loans:
Impaired loans, Fair Value	$ 4,476,000	$ 2,804,000
Real Estate, Commercial, Non-Owner Occupied [Member] | Minimum [Member] | Measurement Input, Comparability Adjustment [Member]
Impaired loans:
Impaired loans, Measurement Input	(2.58)	3.48
Real Estate, Commercial, Non-Owner Occupied [Member] | Maximum [Member] | Measurement Input, Comparability Adjustment [Member]
Impaired loans:
Impaired loans, Measurement Input	8.61	8.61
Real Estate, Commercial, Non-Owner Occupied [Member] | Weighted Average [Member] | Measurement Input, Comparability Adjustment [Member]
Impaired loans:
Impaired loans, Measurement Input	2.15	5.02

X

- Definition

Impaired loans at fair value.

+ References

No definition available.

+ Details

Name:	cfbk_ImpairedLoansAtFairValue
Namespace Prefix:	cfbk_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Impaired Loans Measurement Input

+ References

No definition available.

+ Details

Name:	cfbk_ImpairedLoansMeasurementInput
Namespace Prefix:	cfbk_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalanceAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_CommercialPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_WeightedAverageMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputComparabilityAdjustmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=cfbk_RealEstateMortgageResidentialSingleFamilyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=cfbk_RealEstateCommercialNonOwnerOccupiedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: