CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN REDEEMABLE CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS' EQUITY (DEFICIT) (UNAUDITED) - 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 Jun. 30, 2022					$ 1,723
Ending balance (in shares) at Jun. 30, 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			20	(20)
Series A 12% convertible preferred stock dividend (in shares)		13,025
Series C super dividend redeemable convertible preferred stock dividend			29	(28)	1
Series C super dividend redeemable convertible preferred stock dividend (in shares)		17,600
Issuance of common stock from conversion of Series A convertible preferred stock	$ (17)		17
Issuance of common stock from conversion of Series A convertible preferred stock (in shares)	(42,500)	7,287
Stock-based compensation expense			1,705		1,705
Stock-based compensation expense (in shares)		16,588
Net loss				(19,545)	(19,545)
Ending balance at Jun. 30, 2022	$ 510	$ 59	272,772	(290,287)	(16,946)
Ending balance (in shares) at Jun. 30, 2022	1,260,000	59,395,805
Ending balance at Jun. 30, 2022					$ 1,723
Ending balance (in shares) at Jun. 30, 2022					176
Beginning balance at Mar. 31, 2022	$ 527	$ 59	272,108	(280,610)	$ (7,916)
Beginning balance (in shares) at Mar. 31, 2022	1,302,500	59,388,518
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Series A 12% convertible preferred stock dividend				(38)	(38)
Series C super dividend redeemable convertible preferred stock dividend				(26)	(26)
Issuance of common stock from conversion of Series A convertible preferred stock	$ (17)		17
Issuance of common stock from conversion of Series A convertible preferred stock (in shares)	(42,500)	7,289
Stock-based compensation expense			647		647
Net loss				(9,613)	(9,613)
Ending balance at Jun. 30, 2022	$ 510	$ 59	272,772	(290,287)	(16,946)
Ending balance (in shares) at Jun. 30, 2022	1,260,000	59,395,805
Beginning balance at Dec. 31, 2022					$ 1,723
Beginning balance (in shares) at Dec. 31, 2022					176
Ending balance at Jun. 30, 2023					$ 1,723
Ending balance (in shares) at Jun. 30, 2023					176
Beginning balance at Dec. 31, 2022	$ 510	$ 59	275,081	(309,567)	$ (33,917)
Beginning balance (in shares) at Dec. 31, 2022	1,260,000	59,426,005
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Series A 12% convertible preferred stock dividend			26	(26)
Series A 12% convertible preferred stock dividend (in shares)		12,600
Series C super dividend redeemable convertible preferred stock dividend			36	(37)	(1)
Series C super dividend redeemable convertible preferred stock dividend (in shares)		17,600
Common stock purchase warrants issued in connection with related party line of credit			477		477
Stock-based compensation expense			1,232		1,232
Stock-based compensation expense (in shares)		126,048
Net loss				(20,641)	(20,641)
Ending balance at Jun. 30, 2023	$ 510	$ 59	276,852	(330,271)	(52,850)
Ending balance (in shares) at Jun. 30, 2023	1,260,000	59,582,253
Ending balance at Jun. 30, 2023					$ 1,723
Ending balance (in shares) at Jun. 30, 2023					176
Beginning balance at Mar. 31, 2023	$ 510	$ 59	276,156	(321,094)	$ (44,369)
Beginning balance (in shares) at Mar. 31, 2023	1,260,000	59,582,253
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Series A 12% convertible preferred stock dividend				(37)	(37)
Series C super dividend redeemable convertible preferred stock dividend				(26)	(26)
Common stock purchase warrants issued in connection with related party line of credit			180		180
Stock-based compensation expense			516		516
Net loss				(9,114)	(9,114)
Ending balance at Jun. 30, 2023	$ 510	$ 59	$ 276,852	$ (330,271)	$ (52,850)
Ending balance (in shares) at Jun. 30, 2023	1,260,000	59,582,253