CONSOLIDATED STATEMENTS OF CHANGES IN REDEEMABLE CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS' EQUITY (DEFICIT) - USD ($) $ in Thousands	Preferred Stock [Member] Series A 12% Convertible Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Deficit [Member]	Total
Beginning balance at Dec. 31, 2021					$ 1,723
Beginning balance (in shares) at Dec. 31, 2021					176
Ending balance at Dec. 31, 2022					$ 1,723
Ending balance (in shares) at Dec. 31, 2022					176
Beginning balance at Dec. 31, 2021	$ 527	$ 59	$ 271,001	$ (270,694)	$ 893
Beginning balance (in shares) at Dec. 31, 2021	1,302,500	59,341,305
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Series A 12% convertible preferred stock dividend			40	(40)
Series A 12% convertible preferred stock dividend (in shares)		25,625
Series C super dividend redeemable convertible preferred stock dividend			57	(57)
Series C super dividend redeemable convertible preferred stock dividend (in shares)		35,200
Conversion of Series A Convertible Preferred to common	$ (17)		17
Conversion of Series A Convertible Preferred to common (in shares)	(42,500)	7,287
Issuance of common stock purchase warrants in connection with related party line of credit			899		899
Stock-based compensation expense			3,067		3,067
Stock-based compensation expense (in shares)		16,588
Net loss				(38,776)	(38,776)
Ending balance at Dec. 31, 2022	$ 510	$ 59	275,081	(309,567)	(33,917)
Ending balance (in shares) at Dec. 31, 2022	1,260,000	59,426,005
Ending balance at Dec. 31, 2023					$ 1,723
Ending balance (in shares) at Dec. 31, 2023					176
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Series A 12% convertible preferred stock dividend			50	(50)
Series A 12% convertible preferred stock dividend (in shares)		25,200
Series C super dividend redeemable convertible preferred stock dividend			70	(70)
Series C super dividend redeemable convertible preferred stock dividend (in shares)		35,200
Conversion of Series A Convertible Preferred to common	$ (10)		10
Conversion of Series A Convertible Preferred to common (in shares)	(25,000)	4,257
Issuance of common stock from exercise of warrants		$ 2	10,031		$ 10,033
Issuance of common stock from exercise of warrants (in shares)		2,236,204
Issuance of common stock purchase warrants in connection with related party line of credit			671		671
Warrant modification			3,619	(3,619)
Stock-based compensation expense			2,315		2,315
Stock-based compensation expense (in shares)		126,048
Net loss				(41,066)	(41,066)
Ending balance at Dec. 31, 2023	$ 500	$ 61	$ 291,847	$ (354,372)	$ (61,964)
Ending balance (in shares) at Dec. 31, 2023	1,235,000	61,852,914