UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Treasury Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit
Beginning balance at Dec. 31, 2020	$ 47,171	$ 8	$ (33,851)	$ 359,721	$ (19)	$ (278,688)
Beginning balance (in shares) at Dec. 31, 2020		78,669	5,581
Increase (Decrease) in Equity
Net Loss	(8,300)					(8,300)
Foreign currency translation adjustment	49				49
Stock issued under employee stock purchase plan	38			38
Stock issued under employee stock purchase plan (in shares)			(58)
Restricted stock granted (in shares)		220
Restricted stock forfeited (in shares)			5
Stock compensation expense	778			778
Shares withheld to cover taxes	(105)		$ (105)
Shares withheld to cover taxes (in shares)			45
Other (shares)		(613)
Ending balance at Mar. 31, 2021	39,631	$ 8	$ (33,956)	360,537	30	(286,988)
Ending balance (in shares) at Mar. 31, 2021		78,276	5,573
Beginning balance at Dec. 31, 2021	20,192	$ 8	$ (34,100)	363,417	81	(309,214)
Beginning balance (in shares) at Dec. 31, 2021		79,484	6,022
Increase (Decrease) in Equity
Net Loss	(10,724)					(10,724)
Foreign currency translation adjustment	8				8
Restricted stock granted (in shares)		287
Restricted stock forfeited (in shares)			8
Stock compensation expense	739			739
Shares withheld to cover taxes	(59)		$ (59)
Shares withheld to cover taxes (in shares)			43
Conversion of notes to common stock	2,948			2,948
Conversion of notes to common stock (in shares)		2,793
Ending balance at Mar. 31, 2022	$ 13,104	$ 8	$ (34,159)	$ 367,104	$ 89	$ (319,938)
Ending balance (in shares) at Mar. 31, 2022		82,564	6,073