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Mortgage Banking Activities (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Mortgage Banking Activities [Abstract]      
Gain on sale of mortgage loans held for sale, net of direct costs $ 5,344,361us-gaap_GainLossOnSaleOfMortgageLoans    
Provision for loan indemnification (118,895)us-gaap_ProductWarrantyExpense    
Loan origination fee income 213,540us-gaap_FeesAndCommissionsMortgageBanking    
Total $ 5,439,006zfc_IncomeLossFromMortgageBankingActivitiesNet