Consolidated Statements of Stockholders' Equity Statement - USD ($) $ in Thousands	Total		Common Stock	Additional Paid-in Capital	Retained Earnings (Accumulated Deficit)	Accumulated Other Comprehensive Loss	Treasury Stock
Beginning balance (in shares) at Dec. 31, 2018			19,026,000
Beginning balance at Dec. 31, 2018	$ 99,515		$ 190	$ 139,617	$ (15,397)	$ (14,731)	$ (10,164)
Beginning balance, treasury stock (in shares) at Dec. 31, 2018							(1,282,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(6,254)				(6,254)
Other comprehensive income (loss), net of tax	1,088	[1]				1,088
Stock-based compensation	874			874
Issuance of common stock under employee stock purchase plan (in shares)			23,000
Issuance of common stock under employee stock purchase plan	218			218
Exercise of stock options and issuance of restricted stock awards, net of forfeitures (in shares)			85,000
Exercise of stock options and issuance of restricted stock awards, net of forfeitures	82		$ 1	81
Ending balance (in shares) at Mar. 31, 2019			19,134,000
Ending balance at Mar. 31, 2019	$ 97,203		$ 191	140,790	(19,971)	(13,643)	$ (10,164)
Ending balance, treasury stock (in shares) at Mar. 31, 2019							(1,282,000)
Beginning balance (in shares) at Dec. 31, 2019	18,001,261		19,399,000
Beginning balance at Dec. 31, 2019	$ 149,989		$ 194	144,485	19,538	(2,767)	$ (11,461)
Beginning balance, treasury stock (in shares) at Dec. 31, 2019	(1,397,438)						(1,397,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	$ (6,214)				(6,214)
Other comprehensive income (loss), net of tax	(2,480)	[1]				(2,480)
Stock-based compensation	805			805
Issuance of common stock under employee stock purchase plan (in shares)			20,000
Issuance of common stock under employee stock purchase plan	156			156
Acquisition of treasury stock (in shares)							(36,000)
Acquisition of treasury stock	(390)						$ (390)
Exercise of stock options and issuance of restricted stock awards, net of forfeitures	$ 11			11
Ending balance (in shares) at Mar. 31, 2020	17,986,427		19,419,000
Ending balance at Mar. 31, 2020	$ 141,877		$ 194	$ 145,457	$ 13,324	$ (5,247)	$ (11,851)
Ending balance, treasury stock (in shares) at Mar. 31, 2020	(1,432,694)						(1,433,000)

[1] Tax impact was nominal for all periods.