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Foreclosed Assets (Activity In Valuation Allowance) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2014
Dec. 31, 2013
Disclosure Foreclosed Assets Activity In Valuation Allowance [Abstract]      
Beginning of the year        
Additions charged to expense 962cfbk_AdditionsChargedToExpenseInValuationAllowance    
Direct write downs (2,101)cfbk_DirectWriteDownsToValuationAllowance    
End of year