Regulatory Capital Matters (Narrative) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014
Regulatory Capital Matters [Abstract]
Percent of Qualified Thrift Lender test requires	65.00%
Opening Balance in Liquidation Account	$ 14,300

Minimum percentage of assets to be maintained in housing-related finance and other specified areas as per qualified thrift lender test.

No definition available.

Name:	cfbk_MinimumPercentageOfAssetsToBeMaintainedInHousingRelatedFinanceAndOtherSpecifiedAreasAsPerQualifiedThriftLenderTest
Namespace Prefix:	cfbk_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant