Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Comprehensive Deficit
Beginning balance (in shares) at Dec. 31, 2022		7,025,000
Beginning balance at Dec. 31, 2022	$ 76,379	$ 7	$ 357,924	$ (281,552)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Non-cash compensation recognized on stock options and employee stock purchase plan ("ESPP")	17		17
Restricted stock grants, net of cancellations (in shares)		158,000
Restricted stock grants, net of cancellations	1,959		1,959
Cancellation of shares for payment of withholding tax (in shares)		(22,000)
Cancellation of shares for payment of withholding tax	(291)		(291)
ESPP shares issued (in shares)		1,000
ESPP shares issued	8		8
Common shares issued in settlement and prepayment of notes payable (in shares)		989,000
Common shares issued in settlement and prepayment of notes payable	8,968	$ 1	8,967
Net loss	(12,551)			(12,551)
Ending balance (in shares) at Jun. 30, 2023		8,151,000
Ending balance at Jun. 30, 2023	74,489	$ 8	368,584	(294,103)
Beginning balance (in shares) at Mar. 31, 2023		7,575,000
Beginning balance at Mar. 31, 2023	73,885	$ 8	362,315	(288,438)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Non-cash compensation recognized on stock options and employee stock purchase plan ("ESPP")	6		6
Restricted stock grants, net of cancellations	1,024		1,024
Cancellation of shares for payment of withholding tax (in shares)		(9,000)
Cancellation of shares for payment of withholding tax	(80)		(80)
Common shares issued in settlement and prepayment of notes payable (in shares)		585,000
Common shares issued in settlement and prepayment of notes payable	5,319		5,319
Net loss	(5,665)			(5,665)
Ending balance (in shares) at Jun. 30, 2023		8,151,000
Ending balance at Jun. 30, 2023	$ 74,489	$ 8	368,584	(294,103)
Beginning balance (in shares) at Dec. 31, 2023	9,347,979	9,348,000
Beginning balance at Dec. 31, 2023	$ 75,390	$ 9	381,329	(305,948)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Non-cash compensation recognized on stock options and employee stock purchase plan ("ESPP")	9		9
Restricted stock grants, net of cancellations (in shares)		266,000
Restricted stock grants, net of cancellations	2,264	$ 1	2,263
Cancellation of shares for payment of withholding tax (in shares)		(55,000)
Cancellation of shares for payment of withholding tax	(178)		(178)
ESPP shares issued (in shares)		1,000
ESPP shares issued	2		2
Issuance of Common Stock, Warrants, and Pre-Funded Warrants in connection with Common Stock Offering, net of issuance costs (in shares)		1,065,000
Issuance of Common Stock, Warrants, and Pre-Funded Warrants in connection with Common Stock Offering, net of issuance costs	3,351	$ 1	3,350
Net loss	$ (37,936)			(37,936)
Ending balance (in shares) at Jun. 30, 2024	10,625,467	10,625,000
Ending balance at Jun. 30, 2024	$ 42,902	$ 11	386,775	(343,884)
Beginning balance (in shares) at Mar. 31, 2024		9,602,000
Beginning balance at Mar. 31, 2024	45,442	$ 10	382,387	(336,955)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Non-cash compensation recognized on stock options and employee stock purchase plan ("ESPP")	4		4
Restricted stock grants, net of cancellations	1,133		1,133
Cancellation of shares for payment of withholding tax (in shares)		(42,000)
Cancellation of shares for payment of withholding tax	(99)		(99)
Issuance of Common Stock, Warrants, and Pre-Funded Warrants in connection with Common Stock Offering, net of issuance costs (in shares)		1,065,000
Issuance of Common Stock, Warrants, and Pre-Funded Warrants in connection with Common Stock Offering, net of issuance costs	3,351	$ 1	3,350
Net loss	$ (6,929)			(6,929)
Ending balance (in shares) at Jun. 30, 2024	10,625,467	10,625,000
Ending balance at Jun. 30, 2024	$ 42,902	$ 11	$ 386,775	$ (343,884)