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Financial Instruments with Off-Balance Sheet Risk (Tables)
9 Months Ended
Sep. 30, 2013
Risks and Uncertainties [Abstract]  
Schedule of financial instruments with off-balance sheet risk
 September 30, 2013December 31, 2012
     
Commitments to extend credit$3,545,057$2,648,454
Standby letters of credit 124,259 83,429