XML 83 R72.htm IDEA: XBRL DOCUMENT
v3.20.2

Regulatory Capital Matters (Narrative) (Details) - USD ($) $ in Thousands | Oct. 16, 2020 | Jan. 01, 2019 | Sep. 30, 2020
--- | --- | --- | ---
Future percent of common equity to risk-weighted assets |  | 2.50% |
Common Equity Tier 1 capital to risk-weighted assets, ratio |  | 4.50% |
Capital conservation buffer |  | 2.50% |
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 Based On Required Basel 3 Rules |  | 4.00% |
Opening balance in liquidation account |  |  | $ 14,300
Subsequent Event [Member] |  |  |
Dividends payable first divided payment | Nov. 16, 2020 |  |

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 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 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
- Definition Date the declared dividend will be paid, in CCYY-MM-DD format. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4304-108586 + Details
Name: | us-gaap_DividendPayableDateToBePaidDayMonthAndYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |