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Financial Instruments with Off-Balance Sheet Risk (Details) - USD ($)
$ in Thousands
Mar. 31, 2016
Dec. 31, 2015
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]    
Commitments to extend credit $ 182,613 $ 166,931
Letters of credit 8,064 7,087
Total $ 190,677 $ 174,018