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Deposits - Additional Information (Details) - USD ($)
$ in Thousands
Jun. 30, 2015
Dec. 31, 2014
Banking and Thrift [Abstract]    
Deposits exceeding FDIC insurance limits $ 189,548 $ 253,953
Accrued interest on deposits 15,731 16,082
Deposits - non interest bearing $ 1,168 $ 602