Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total		Common Stock	Additional Paid-in Capital	(Accumulated Deficit) Retained Earnings	Accumulated Other Comprehensive Loss	Treasury Stock
Beginning Balance at Dec. 31, 2017	$ 105,665		$ 188	$ 134,361	$ (4,417)	$ (11,317)	$ (13,150)
Beginning Balance, shares at Dec. 31, 2017			18,788,000
Beginning Balance, treasury stock, shares at Dec. 31, 2017							(1,659,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (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
Sales 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)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	33,255				33,255
Other comprehensive (loss) income	11,964	[1]				11,964
Stock-based compensation	4,159			4,159
Issuance of common stock under employee stock purchase plan	414			414
Issuance of common stock under employee stock purchase plan, shares			45,000
Acquisition of treasury stock	(1,297)						$ (1,297)
Acquisition of treasury stock, shares							(115,000)
Exercise of stock options and issuance of restricted stock awards, net of forfeitures	$ 299		$ 4	295
Exercise of stock options and issuance of restricted stock awards, net of forfeitures, shares			328,000
Ending Balance, treasury stock, shares at Dec. 31, 2019	(1,397,438)						(1,397,000)
Ending Balance, shares at Dec. 31, 2019	18,001,261		19,399,000
Ending Balance at Dec. 31, 2019	$ 149,989		$ 194	$ 144,485	$ 19,538	$ (2,767)	$ (11,461)

[1] Tax impact was nominal for all periods.