CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY (UNAUDITED) - 9 months ended Sep. 30, 2017 - USD ($) $ in Thousands	Common Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income [Member]	Total
Balances at Dec. 31, 2016	$ 109,911	$ 66,195	$ (1,922)	$ 174,184
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	0	11,050	0	11,050
Other comprehensive income	0	0	2,377	2,377
Cash dividends paid ($0.45 per share)	0	(4,796)	0	(4,796)
Stock based compensation expense	194	0	0	194
Stock options exercised	248	0	0	248
Balances at Sep. 30, 2017	$ 110,353	$ 72,449	$ 455	$ 183,257