Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	AOCI Attributable to Parent [Member]	Total
BALANCE (in shares) at Dec. 31, 2023	9,348
BALANCE at Dec. 31, 2023	$ 9	$ 381,329	$ (305,948)	$ 75,390
Non-cash compensation recognized on stock options and employee stock purchase plan ("ESPP")	$ 0	16	0	16
Restricted stock grants, net of cancellations (in shares)	683
Restricted stock grants, net of cancellations	$ 1	3,506	0	3,507
Cancellation of shares for payment of withholding tax (in shares)	(88)
Cancellation of shares for payment of withholding tax	$ 0	(217)	0	(217)
Issuance of common stock and warrants in connection with common stock offering, net of issuance costs (in shares)	1,065
Issuance of common stock and warrants in connection with common stock offering, net of issuance costs	$ 1	3,350	0	3,351
Net loss	$ 0	0	(44,306)	(44,306)
BALANCE (in shares) at Sep. 30, 2024	11,857
BALANCE at Sep. 30, 2024	$ 12	387,988	(350,254)	37,746
ESPP shares issued (in shares)	5
ESPP shares issued	$ 0	5	0	5
Issuance of Common Stock for Pre-Funded Warrants Exercise (in shares)	844
Issuance of Common Stock for Pre-Funded Warrants Exercise	$ 1	(1)		0
BALANCE (in shares) at Jun. 30, 2024	10,625
BALANCE at Jun. 30, 2024	$ 11	386,775	(343,885)	42,901
Non-cash compensation recognized on stock options and employee stock purchase plan ("ESPP")	$ 0	7	0	7
Restricted stock grants, net of cancellations (in shares)	417
Restricted stock grants, net of cancellations	$ 0	1,243	0	1,243
Cancellation of shares for payment of withholding tax (in shares)	(33)
Cancellation of shares for payment of withholding tax	$ 0	(39)	0	(39)
Net loss	$ 0	0	(6,369)	(6,369)
BALANCE (in shares) at Sep. 30, 2024	11,857
BALANCE at Sep. 30, 2024	$ 12	387,988	(350,254)	37,746
ESPP shares issued (in shares)	4
ESPP shares issued	$ 0	3	0	3
Issuance of Common Stock for Pre-Funded Warrants Exercise (in shares)	844
Issuance of Common Stock for Pre-Funded Warrants Exercise	$ 1	(1)	0	0
BALANCE (in shares) at Dec. 31, 2024	17,673
BALANCE at Dec. 31, 2024	$ 18	395,383	(354,645)	40,756
Non-cash compensation recognized on stock options and employee stock purchase plan ("ESPP")	$ 0	15	0	15
Restricted stock grants, net of cancellations (in shares)	2,625
Restricted stock grants, net of cancellations	$ 2	2,810	0	2,812
Cancellation of shares for payment of withholding tax (in shares)	(436)
Cancellation of shares for payment of withholding tax	$ 0	(407)	0	(407)
Issuance of common stock and warrants in connection with common stock offering, net of issuance costs (in shares)	1,613
Issuance of common stock and warrants in connection with common stock offering, net of issuance costs	$ 1	964	0	965
Debt discount for warrants issued	0	522	0	522
Deemed dividend	0	635	(635)	0
Net loss	$ 0	0	(24,774)	(24,774)
BALANCE (in shares) at Sep. 30, 2025	21,478
BALANCE at Sep. 30, 2025	$ 21	399,924	(380,054)	19,891
ESPP shares issued (in shares)	3
ESPP shares issued	$ 0	2	0	2
BALANCE (in shares) at Jun. 30, 2025	19,382
BALANCE at Jun. 30, 2025	$ 19	397,280	(374,884)	22,415
Non-cash compensation recognized on stock options and employee stock purchase plan ("ESPP")	$ 0	4	0	4
Restricted stock grants, net of cancellations (in shares)	634
Restricted stock grants, net of cancellations	$ 1	639	0	640
Cancellation of shares for payment of withholding tax (in shares)	(151)
Cancellation of shares for payment of withholding tax	$ 0	(120)	0	(120)
Issuance of common stock and warrants in connection with common stock offering, net of issuance costs (in shares)	1,613
Issuance of common stock and warrants in connection with common stock offering, net of issuance costs	$ 1	964	0	965
Debt discount for warrants issued	0	522	0	522
Deemed dividend	0	635	(635)	0
Net loss	$ 0	0	(4,535)	(4,535)
BALANCE (in shares) at Sep. 30, 2025	21,478
BALANCE at Sep. 30, 2025	$ 21	$ 399,924	$ (380,054)	$ 19,891