Other Real Estate Owned (OREO) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015
Analysis of Balance in OREO [Abstract]
Balance at beginning of year		$ 5,290	$ 8,014
Transfers to OREO due to foreclosure		0	553
Other additions to foreclosed properties		52	0
Real Estate Transferred to Other Real Estate		127	0
Properties sold		(3,376)	(3,277)
Balance at end of year		2,093	5,290
Analysis of Valuation Allowance on OREO [Roll Forward]
Balance at beginning of year		2,549	2,908
Additions and write-downs		60	1,011
Reductions due to sales or increases in value		(1,583)	(1,370)
Balance at end of year		1,026	2,549
Expenses applicable to OREOs [Abstract]
Net loss (gain) on sales of real estate		94	(54)
Provision for losses (direct writedowns)		60	1,011
Operating expenses, net of income	[1]	160	219
Total Expenses		$ 314	$ 1,176

[1] included in other operating income and other operating expense.