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Fair Value - Additional Information (Details) - USD ($)
$ in Thousands
Sep. 30, 2015
Dec. 31, 2014
Sep. 30, 2014
Fair Value Disclosures [Abstract]      
Valuation allowance on real estate owned $ 409 $ 654 $ 533
Valuation allowance on impaired financing receivable $ 394 $ 1,074 $ 2,165