Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Preferred Stock	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive (Loss)	Treasury Stock
Beginning balance at Dec. 31, 2016	$ 145,625	$ 16,334	$ 10,048	$ 93,412	$ 31,192	$ (4,277)	$ (1,084)
Increase (Decrease) in Stockholders' Equity
Net Income	1,574				1,574
Other comprehensive loss	257					257
Cash dividends paid	(250)				(250)
Dividends on preferred stock	(129)				(129)
Stock based compensation	148			148
Redemption of preferred stock	(8,500)	(8,500)
Ending balance at Mar. 31, 2017	138,725	7,834	10,048	93,560	32,387	(4,020)	(1,084)
Increase (Decrease) in Stockholders' Equity
Mark to market on equity positions	0				98	(98)
Beginning balance at Dec. 31, 2017	150,192	7,834	10,496	98,698	37,236	(2,988)	(1,084)
Increase (Decrease) in Stockholders' Equity
Net Income	2,594				2,594
Other comprehensive loss	(3,485)					(3,485)
Cash dividends paid	(263)				(263)
Dividends on preferred stock	(121)				(121)
Stock based compensation	244			244
Common stock options exercised	1,260		94	1,166
Stranded AOCI	0				646	(646)
Ending balance at Mar. 31, 2018	$ 150,421	$ 7,834	$ 10,590	$ 100,108	$ 40,190	$ (7,217)	$ (1,084)