Other real estate owned ("OREO"), net (Schedule of Activity in Other Real Estate Owned Valuation Allowance) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Real Estate Owned Valuation Allowance [Roll Forward]
Balance at beginning of year	$ 776	$ 2,323	$ 2,394
Additions to valuation allowance	0	72	1,163
Reductions due to sales of OREO	0	(1,619)	(1,234)
Balance at end of year	$ 776	$ 776	$ 2,323