XML 121 R107.htm IDEA: XBRL DOCUMENT
v3.6.0.2

Regulatory Capital Matters (Narrative) (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2016 | Dec. 31, 2015
Future percent of common equity to risk-weighted assets | 2.50% |
Tier 1 (Core) Capital | 5.00% | 5.00%
Total capital to risk weighted assets | 10.00% | 10.00%
Percent of Qualified Thrift Lender test requires |  | 65.00%
Opening balance in liquidation account | $ 14,300 |
CF Bank [Member] |  |
Tier 1 (Core) Capital | 8.00% | 8.00%
Total capital to risk weighted assets | 12.00% | 12.00%

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 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 The Total risk based capital ratio (total capital divided by risk weighted assets) required to be categorized as "well capitalized", in the regulatory framework for prompt corrective action. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=35709795&loc=SL5958568-112826 + Details
Name: | us-gaap_CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The amount of Tier 1 Leverage Capital required to be categorized as well capitalized divided by average assets as defined in the regulatory framework for prompt corrective action. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=35709795&loc=SL5958568-112826 + Details
Name: | us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | dei_LegalEntityAxis=cfbk_CfBankMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |