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LOANS: (Details Textual) (USD $)
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Covered loans $ 27,754,000 $ 35,048,000
Loans Held-for-sale, Mortgages 8,800,000 4,100,000
Pledged Assets, Not Separately Reported, Finance Receivables 543,600,000 450,100,000
Escrow Deposit 2,640,000 1,890,000
Servicing Liability at Fair Value, Changes in Fair Value Resulting from Changes in Valuation Inputs or Changes in Assumptions 3,200,000 3,300,000
Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Discount Rate 9.00% 9.00%
Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Weighted Average Life 8 years  
Director and Executive Officer [Member]
    
Beginning Balance 58,500,000  
Advances 27,200,000  
Repayments 11,600,000  
Increase (Decrease) (12,600,000)  
Ending Balance $ 61,500,000  
Maximum
    
Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Prepayment Speed 550.00% 700.00%
Minimum
    
Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Prepayment Speed 262.00% 140.00%