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Financial Instruments with Off-Balance Sheet Risk (Details) - USD ($)
$ in Thousands
Sep. 30, 2015
Dec. 31, 2014
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]    
Commitments to extend credit $ 140,986 $ 127,080
Letters of credit 7,004 7,347
Total $ 147,990 $ 134,427