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, 2024	3,535
BALANCE at Dec. 31, 2024	$ 4	$ 395,397	$ (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)	525
Restricted stock grants, net of cancellations	$ 0	2,812	0	2,812
Cancellation of shares for payment of withholding tax (in shares)	(88)
Cancellation of shares for payment of withholding tax	$ 0	(407)	0	(407)
Net loss	$ 0	0	(24,774)	(24,774)
Issuance of common stock and warrants in connection with common stock offering, net of issuance costs (in shares)	323
Issuance of common stock and warrants in connection with common stock offering, net of issuance costs	$ 0	965	0	965
Debt discount for warrants issued	0	522	0	522
Deemed dividend	0	635	(635)	0
Deemed dividend	$ 0	635	(635)	0
BALANCE (in shares) at Sep. 30, 2025	4,296
BALANCE at Sep. 30, 2025	$ 4	399,941	(380,054)	19,891
ESPP shares issued (in shares)	1
ESPP shares issued	$ 0	2	0	2
BALANCE (in shares) at Jun. 30, 2025	3,877
BALANCE at Jun. 30, 2025	$ 4	397,295	(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)	127
Restricted stock grants, net of cancellations	$ 0	640	0	640
Cancellation of shares for payment of withholding tax (in shares)	(31)
Cancellation of shares for payment of withholding tax	$ 0	(120)	0	(120)
Net loss	$ 0	0	(4,535)	(4,535)
Issuance of common stock and warrants in connection with common stock offering, net of issuance costs (in shares)	323
Issuance of common stock and warrants in connection with common stock offering, net of issuance costs	$ 0	965	0	965
Debt discount for warrants issued	0	522	0	522
Deemed dividend	0	635	(635)	0
Deemed dividend	$ 0	635	(635)	0
BALANCE (in shares) at Sep. 30, 2025	4,296
BALANCE at Sep. 30, 2025	$ 4	399,941	(380,054)	19,891
BALANCE (in shares) at Dec. 31, 2025	5,160
BALANCE at Dec. 31, 2025	$ 5	403,128	(384,743)	18,390
Non-cash compensation recognized on stock options and employee stock purchase plan ("ESPP")	$ 0	5	0	5
Restricted stock grants, net of cancellations (in shares)	18
Restricted stock grants, net of cancellations	$ 0	870	0	870
Cancellation of shares for payment of withholding tax (in shares)	(80)
Cancellation of shares for payment of withholding tax	$ 0	(243)	0	(243)
Net loss	$ 0	0	(8,244)	(8,244)
Issuance of common stock and warrants in connection with common stock offering, net of issuance costs (in shares)	487
Issuance of common stock and warrants in connection with common stock offering, net of issuance costs	$ 1	1,545	0	1,546
Debt discount for warrants issued	0	3,417	0	3,417
Deemed dividend	0	86	(86)	0
Deemed dividend	$ 0	86	(86)	0
BALANCE (in shares) at Sep. 30, 2026	5,585
BALANCE at Sep. 30, 2026	$ 6	408,808	(393,073)	15,741
BALANCE (in shares) at Jun. 30, 2026	5,589
BALANCE at Jun. 30, 2026	$ 6	408,703	(391,375)	17,334
Non-cash compensation recognized on stock options and employee stock purchase plan ("ESPP")	$ 0	2	0	2
Restricted stock grants, net of cancellations (in shares)	0
Restricted stock grants, net of cancellations	$ 0	116	0	116
Cancellation of shares for payment of withholding tax (in shares)	(4)
Cancellation of shares for payment of withholding tax	$ 0	(13)	0	(13)
Net loss	$ 0	0	(1,698)	(1,698)
BALANCE (in shares) at Sep. 30, 2026	5,585
BALANCE at Sep. 30, 2026	$ 6	$ 408,808	$ (393,073)	$ 15,741