Unaudited Condensed Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Deficit [Member]	Accumulated Other Comprehensive (Loss) Income [Member]	Deferred Compensation Plan Trust [Member]	Treasury Stock [Member]
Beginning Balance at Dec. 31, 2015	$ 256,388	$ 94,554	$ 510,659	$ (337,542)	$ (1,752)	$ (1,122)	$ (8,409)
Net income	826			826
Other comprehensive income	1,014				1,014
Exercise of stock options	2		(4)				6
Issuance of common stock	674	241	(1,272)				1,705
Stock-based compensation	553		553
Ending Balance at Mar. 31, 2016	319,709	94,795	509,936	(336,716)	(738)	(1,122)	(6,698)
Beginning Balance at Dec. 31, 2016	319,709	95,154	508,593	(276,501)	(2,568)	(1,160)	(3,809)
Net income	1,430			1,430
Other comprehensive income	408				408
Exercise of stock options	58		(56)				114
Issuance of common stock	681	508	(904)				1,077
Stock-based compensation	720		720
Dividends paid to common shareholders	(190)			(190)
Ending Balance at Mar. 31, 2017	$ 322,816	$ 95,662	$ 508,353	$ (275,261)	$ (2,160)	$ (1,160)	$ (2,618)