Other Real Estate Owned (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Other Real Estate [Roll Forward]
Balance beginning of period	$ 1,394	$ 3,152	$ 2,694	$ 5,852
Real estate acquired from borrowers	1,145	2,500	1,145	2,500
Valuation allowance				(200)
Properties sold	(1,145)	(458)	(2,445)	(2,958)
Balance end of period	$ 1,394	$ 5,194	$ 1,394	$ 5,194