XML 72 R61.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Regulatory Capital Matters (Narrative) (Details) - USD ($) $ in Thousands | 6 Months Ended |
--- | --- | ---
Jun. 30, 2017 | Jan. 01, 2016
Regulatory Capital Matters [Abstract] |  |
Percent of Qualified Thrift Lender test requires | 65.00% |
Common equity tier 1 capital to risk-weighted assets, ratio | 4.50% |
Capital conservation buffer | 2.50% | 0.625%
Common Equity Tier 1 capital to risk weighted assets, upon full implementation, ratio | 7.00% |
Tier 1 capital to risk-weighted assets, ratio | 6.00% |
Tier 1 capital to risk weighted assets, upon full implementation, ratio | 8.50% |
Total capital to risk-weighted assets, ratio | 8.00% |
Total capital to risk weighted assets, upon full implementation, ratio | 10.50% |
Minimum leverage ratio | 4.00% |
Capital conservative buffer phase period | 4 years |
Opening Balance in Liquidation Account | $ 14,300 |
Future percent, common equity of risk-weighted assets | 2.50% |

X
- Definition Capital conservation buffer under Basel 3 Capital Rules. + References No definition available. + Details
Name: | cfbk_CapitalConservationBuffer
Namespace Prefix: | cfbk_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Capital conservative buffer phase period + References No definition available. + Details
Name: | cfbk_CapitalConservativeBufferPhasePeriod
Namespace Prefix: | cfbk_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Basel III Capital Rules requirements: Common equity tier 1 capital to risk-weighted assets, ratio + References No definition available. + Details
Name: | cfbk_CommonEquityTier1CapitalToRiskWeightedAssetsRatio
Namespace Prefix: | cfbk_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Common Equity Tier 1 capital to risk weighted assets, upon full implementation, ratio + References No definition available. + Details
Name: | cfbk_CommonEquityTier1CapitalToRiskWeightedAssetsUponFullImplementationRatio
Namespace Prefix: | cfbk_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Future percent, additional amount of common equity of risk-weighted assets + References No definition available. + Details
Name: | cfbk_FuturePercentCommonEquityOfRiskWeightedAssets
Namespace Prefix: | cfbk_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Minimum leverage ratio, based on required Basel 3 rules + References No definition available. + Details
Name: | cfbk_MinimumLeverageRatioBasedOnRequiredBasel3Rules
Namespace Prefix: | cfbk_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Minimum percentage of assets to be maintained in housing-related finance and other specified areas as per qualified thrift lender test. + References No definition available. + Details
Name: | cfbk_MinimumPercentageOfAssetsToBeMaintainedInHousingRelatedFinanceAndOtherSpecifiedAreasAsPerQualifiedThriftLenderTest
Namespace Prefix: | cfbk_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Opening balance in liquidation account. + References No definition available. + Details
Name: | cfbk_OpeningBalanceInLiquidationAccount
Namespace Prefix: | cfbk_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Tier 1 capital to risk-weighted assets, ratio + References No definition available. + Details
Name: | cfbk_Tier1CapitalToRiskWeightedAssetsRatio
Namespace Prefix: | cfbk_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Tier 1 capital to risk weighted assets, upon full implementation, ratio + References No definition available. + Details
Name: | cfbk_Tier1CapitalToRiskWeightedAssetsUponFullImplementationRatio
Namespace Prefix: | cfbk_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Total capital to risk-weighted assets, ratio. Based on the required Basel 3 Rules. + References No definition available. + Details
Name: | cfbk_TotalCapitalToRiskWeightedAssetsRatio
Namespace Prefix: | cfbk_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Total capital to risk weighted assets, upon full implementation, ratio. Based on the Basel 3 requirement rules. + References No definition available. + Details
Name: | cfbk_TotalCapitalToRiskWeightedAssetsUponFullImplementationRatio
Namespace Prefix: | cfbk_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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