XML 87 R73.htm IDEA: XBRL DOCUMENT
v3.6.0.2

Foreclosed Assets (Expenses Related To Foreclosed Assets) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015
Foreclosed Assets [Abstract] |  |
Net loss (gain) on sales | $ (4) |
Operating expenses, net of rental income | 69 | 137
Foreclosed assets, net | $ 65 | $ 137

X
- Definition Foreclosed Real Estate operating expense net of rental income. + References No definition available. + Details
Name: | cfbk_ForeclosedRealEstateOperatingExpenseNetOfRentalIncome
Namespace Prefix: | cfbk_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Net Gain Loss On Sale Of Foreclosed Assets + References No definition available. + Details
Name: | cfbk_NetGainLossOnSaleOfForeclosedAssets
Namespace Prefix: | cfbk_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_ForeclosedAssetsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of expense recognized during the period for the foreclosure on real estate assets. + References No definition available. + Details
Name: | us-gaap_ForeclosedRealEstateExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration