Consolidated Statement of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Treasury Stock	Other Comprehensive Income (Loss)	Additional Paid-In Capital	Retained Earnings
Beginning balance, shares at Dec. 31, 2013		27,710,775
Beginning balance at Dec. 31, 2013	$ 227,812	$ 278	$ (3,003)		$ 163,970	$ 66,567
Beginning 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)
Purchase of shares into treasury	(436)		$ (436)
Net (loss) income	6,877					6,877
Ending balance, shares at Dec. 31, 2014		27,969,783
Ending balance at Dec. 31, 2014	236,717	$ 279	$ (3,439)		166,433	73,444
Ending treasury stock, shares at Dec. 31, 2014			(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	$ 0			28
Issue restricted stock, shares		38,660
Cash flow hedge, net of tax	(145)			$ (145)
Forfeiture of restricted stock, shares		(19,824)
Purchase of stock into treasury, shares			(350,000)
Purchase of shares 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
Ending treasury stock, shares at Dec. 31, 2015	(711,231)		(711,231)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	$ 2,280				2,280
Exercise of stock options, shares	13,850	13,850
Exercise of stock options	$ 67				67
Issue restricted stock, shares		407,002
Cash flow hedge, net of tax	(237)			(237)
Forfeiture of restricted stock, shares		(7,591)
Net (loss) income	$ (3,620)					(3,620)
Ending balance, shares at Dec. 31, 2016	28,405,850	28,405,850
Ending balance at Dec. 31, 2016	$ 226,204	$ 283	$ (6,540)	$ (382)	171,079	$ 61,764
Ending treasury stock, shares at Dec. 31, 2016	(711,231)		(711,231)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock Issued During Period, Value, New Issues	$ 0	$ 4			$ (4)