Other Real Estate Owned (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Real Estate Acquired Through Foreclosure [Roll Forward]
Balance at beginning of year	$ 6,254	$ 13,554	$ 15,504
Acquisitions	1,120	0	3,608
Real Estate Acquired Through Foreclosure, Additions	7,648	5,560	5,198
Valuation adjustments	(603)	(207)	(224)
Dispositions	(4,400)	(12,653)	(10,532)
Balance at end of year	10,019	6,254	13,554
Valuation adjustments	(603)	(207)	(224)
Write-down due to change in appraised value	550	106	93
Write-down due to change in management estimates	$ 53	$ 101	$ 131