Consolidated Statement of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Treasury Stock	Other Comprehensive Income (Loss)	Additional Paid-In Capital	Retained Earnings	Non-controlling Interest
Beginning balance, shares at Dec. 31, 2012		27,530,220
Beginning balance at Dec. 31, 2012	$ 224,531	$ 275	$ (3,003)		$ 160,973	$ 66,236	$ 50
Beginning treasury stock, shares at Dec. 31, 2012			(317,731)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	$ 2,141				2,141
Exercise of stock options, shares	155,731	155,731
Exercise of stock options	$ 859	$ 3			856
Issue restricted stock, shares		24,824
Distributions to noncontrolling interest	(50)						(50)
Net (loss) income	331					331
Ending balance, shares at Dec. 31, 2013		27,710,775
Ending balance at Dec. 31, 2013	227,812	$ 278	$ (3,003)		163,970	66,567	0
Ending treasury stock, shares at Dec. 31, 2013			(317,731)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	$ 1,594				1,594
Exercise of stock options, shares	143,282	143,282
Exercise of stock options	$ 870	$ 1			869
Issue restricted stock, shares		115,726
Purchase of stock into treasury, shares	(43,500)		(43,500)
Purchase of stock into treasury	$ (436)		$ (436)
Net (loss) income	$ 6,877					6,877
Ending balance, shares at Dec. 31, 2014	27,969,783	27,969,783
Ending balance at Dec. 31, 2014	$ 236,717	$ 279	$ (3,439)		166,433	73,444	0
Ending treasury stock, shares at Dec. 31, 2014	(361,231)		(361,231)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	$ 2,275				2,275
Exercise of stock options, shares	3,970	3,970
Exercise of stock options	$ 28				28
Issue restricted stock, shares		38,660
Cash flow hedge	(145)			$ (145)
Forfeiture of restricted stock, shares		(19,824)
Purchase of stock into treasury, shares			(350,000)
Purchase of stock into treasury	(3,101)		$ (3,101)
Net (loss) income	$ (8,060)					(8,060)
Ending balance, shares at Dec. 31, 2015	27,992,589	27,992,589
Ending balance at Dec. 31, 2015	$ 227,714	$ 279	$ (6,540)	$ (145)	$ 168,736	$ 65,384	$ 0
Ending treasury stock, shares at Dec. 31, 2015	(711,231)		(711,231)