Other Real Estate Owned and Repossessed Assets (Income and Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income and expenses related to other real estate owned
Net gain (loss) on sale	$ 1,372	$ 3,038	$ 5,325
Write-downs	(1,266)	(1,640)	(636)
Net operating expenses	(858)	(1,981)	(740)
Total	(752)	(583)	3,949
Income and expenses related to repossessed assets
Net gain (loss) on sale	(309)	(381)	523
Write-downs	0	0	0
Net operating expenses	(5)	(41)	(60)
Total	$ (314)	$ (422)	$ 463