CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY - USD ($) $ in Thousands	Total	Common Stock	Treasury Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income	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		78,669,000
Beginning balance (in shares) at Dec. 31, 2020			5,581,000
Increase (Decrease) in Equity
Net loss	(30,526)					(30,526)
Foreign currency translation adjustment	100				100
Stock issued under employee stock purchase plan	$ 80			80
Stock issued under employee stock purchase plan (in shares)	(135,092)		(136,000)
Restricted stock granted (in shares)		1,702,000
Restricted stock forfeited (in shares)	(421,389)	(284,000)	(422,000)
Restricted units vested (in shares)		86,000
Stock compensation expense	$ 3,757			3,757
Shares withheld to cover taxes	(423)		$ (273)	(150)
Shares withheld to cover taxes (in shares)		(76,000)	(155,317)
Other	33		$ 24	9
Other (shares)		(613,000)
Ending balance at Dec. 31, 2021	$ 20,192	$ 8	$ (34,100)	363,417	81	(309,214)
Ending balance (in shares) at Dec. 31, 2021	79,483,837	79,484,000
Ending balance (in shares) at Dec. 31, 2021	6,127,527		6,022,000
Increase (Decrease) in Equity
Net loss	$ (42,305)					(42,305)
Foreign currency translation adjustment	100				100
Stock issued under employee stock purchase plan	$ 140			140
Stock issued under employee stock purchase plan (in shares)	(39,547)		(40,000)
Restricted stock granted (in shares)		1,533,000
Restricted stock forfeited (in shares)	(30,055)	(3,000)	(30,000)
Restricted stock units vested	$ (31)			(31)
Restricted units vested (in shares)		144,000
Stock compensation expense	3,325			3,325
Shares withheld to cover taxes	(193)		$ (151)	(42)
Shares withheld to cover taxes (in shares)		(35,000)	(114,797)
Issuance of stock warrants, net of transaction fee	9,930			9,930
Equity contribution	8,400			8,400
Conversion of notes to common stock	3,038			3,038
Conversion of notes to common stock (in shares)		2,793,000
Ending balance at Dec. 31, 2022	$ 2,596	$ 8	$ (34,251)	$ 388,177	$ 181	$ (351,519)
Ending balance (in shares) at Dec. 31, 2022	83,915,918	83,916,000
Ending balance (in shares) at Dec. 31, 2022	6,022,634		6,127,000