Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total		Common Stock	Additional Paid-in Capital	Accumulated Earnings	Accumulated Other Comprehensive (Loss) Income	Treasury Stock
Beginning Balance at Dec. 31, 2015	$ 118,176		$ 173	$ 124,619	$ 14,134	$ (7,600)	$ (13,150)
Beginning Balance, shares at Dec. 31, 2015			17,336,000
Beginning Balance, treasury stock, shares at Dec. 31, 2015							(1,659,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(7,517)				(7,517)
Other comprehensive (loss) income	(9,209)	[1]				(9,209)
Stock-based compensation	3,651			3,651
Issuance of common stock under employee stock purchase plan	146			146
Issuance of common stock under employee stock purchase plan, shares			18,000
Shares withheld, repurchased and retired related to minimum statutory tax withholding requirements	(313)			(313)
Shares withheld, repurchased and retired related to minimum statutory tax withholding requirements, shares			(32,000)
Excess tax shortfall on share-based awards	(869)			(869)
Exercise of stock options and issuance of restricted stock awards, net of forfeitures	2,437		$ 11	2,426
Exercise of stock options and issuance of restricted stock awards, net of forfeitures, shares			1,099,000
Ending Balance, treasury stock, shares at Dec. 31, 2016							(1,659,000)
Ending Balance, shares at Dec. 31, 2016			18,421,000
Ending Balance at Dec. 31, 2016	106,502		$ 184	129,660	6,617	(16,809)	$ (13,150)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(11,034)				(11,034)
Other comprehensive (loss) income	5,492	[1]				5,492
Stock-based compensation	3,518			3,518
Issuance of common stock under employee stock purchase plan	358			358
Issuance of common stock under employee stock purchase plan, shares			47,000
Shares withheld, repurchased and retired related to minimum statutory tax withholding requirements	(392)			(392)
Shares withheld, repurchased and retired related to minimum statutory tax withholding requirements, shares			(43,000)
Exercise of stock options and issuance of restricted stock awards, net of forfeitures	$ 1,221		$ 4	1,217
Exercise of stock options and issuance of restricted stock awards, net of forfeitures, shares			363,000
Ending Balance, treasury stock, shares at Dec. 31, 2017	(1,658,991)						(1,659,000)
Ending Balance, shares at Dec. 31, 2017	17,128,825		18,788,000
Ending Balance at Dec. 31, 2017	$ 105,665		$ 188	134,361	(4,417)	(11,317)	$ (13,150)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(8,232)				(8,232)
Other comprehensive (loss) income	(3,414)	[1]				(3,414)
Stock-based compensation	3,321			3,321
Issuance of common stock under employee stock purchase plan	167			167
Issuance of common stock under employee stock purchase plan, shares			17,000
Sale of treasury stock	4,464			1,478			$ 2,986
Sale of treasury stock, shares							377,000
Exercise of stock options and issuance of restricted stock awards, net of forfeitures	$ 292		$ 2	290
Exercise of stock options and issuance of restricted stock awards, net of forfeitures, shares			221,000
Ending Balance, treasury stock, shares at Dec. 31, 2018	(1,282,422)						(1,282,000)
Ending Balance, shares at Dec. 31, 2018	17,743,971		19,026,000
Ending Balance at Dec. 31, 2018	$ 99,515		$ 190	$ 139,617	$ (15,397)	$ (14,731)	$ (10,164)

[1] Tax impact was nominal for all periods.