Other Real Estate Owned (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Activity in the other real estate owned (OREO) portfolio, net of valuation reserve
Balance at beginning of period	$ 13,481	$ 17,745	$ 11,916	$ 19,141
Property additions	204	586	3,620	968
Property improvements				12
Less: Property disposals, net of gains/losses	1,569	1,590	3,102	2,929
Less: Period valuation adjustments	392	489	710	940
Balance at end of period	11,724	16,252	11,724	16,252
Activity in the valuation allowance
Balance at beginning of period	9,659	14,399	9,982	14,127
Provision for unrealized losses	392	489	710	940
Reductions taken on sales	(1,747)	(1,511)	(2,388)	(1,690)
Balance at end of period	8,304	13,377	8,304	13,377
Expenses related to foreclosed assets, net of lease revenue
Gain on sales, net	(104)	(25)	(178)	(67)
Provision for unrealized losses	392	489	710	940
Operating expenses	293	420	816	856
Less: Lease revenue	42	5	100	112
Expenses related to OREO, net of lease revenue	$ 539	$ 879	$ 1,248	$ 1,617