UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2022		20,027,065
Beginning balance at Dec. 31, 2022	$ 63,306	$ 20	$ 733,437	$ (670,151)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation costs	608		608
5-Year Private Warrants transferred to 5-Year Public Warrants	531		531
Net loss	(13,909)			(13,909)
Ending balance (in shares) at Mar. 31, 2023		20,027,065
Ending balance at Mar. 31, 2023	50,536	$ 20	734,576	(684,060)
Beginning balance (in shares) at Dec. 31, 2023		20,736,612
Beginning balance at Dec. 31, 2023	12,656	$ 21	737,810	(725,175)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock and warrants (in shares)		517,688
Issuance of common stock and warrants	1,160		1,160
Stock-based compensation costs	678		678
Vesting of restricted stock units (in shares)		2,595
Net loss	(20,749)			(20,749)
Ending balance (in shares) at Mar. 31, 2024		21,256,895
Ending balance at Mar. 31, 2024	$ (6,255)	$ 21	$ 739,648	$ (745,924)