CONDENSED CONSOLIDATED STATEMENTS OF PREFERRED STOCK AND STOCKHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Preferred Stock Series D [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Beginning balance, value at Dec. 31, 2021	$ 0	$ 0	$ 138,832	$ (116,900)	$ 21,932
Balance at beginning, shares at Dec. 31, 2021	0	1,127,917
Issuance of common stock upon vesting of restricted stock units
Issuance of common stock upon vesting of restricted stock units, shares		12,943
Shares withheld for payroll taxes			(25)		(25)
Shares withheld for payroll taxes, shares		(2,633)
Stock-based compensation expense			186		186
Net loss				(2,642)	(2,642)
Ending balance, value at Mar. 31, 2022	$ 0	$ 0	138,993	(119,542)	19,451
Balance at ending, shares at Mar. 31, 2022	0	1,138,227
Beginning balance, value at Dec. 31, 2021	$ 0	$ 0	138,832	(116,900)	21,932
Balance at beginning, shares at Dec. 31, 2021	0	1,127,917
Net loss					(8,749)
Ending balance, value at Sep. 30, 2022	$ 0	$ 0	139,176	(125,649)	13,527
Balance at ending, shares at Sep. 30, 2022	0	1,138,998
Beginning balance, value at Mar. 31, 2022	$ 0	$ 0	138,993	(119,542)	19,451
Balance at beginning, shares at Mar. 31, 2022	0	1,138,227
Stock-based compensation expense			83		83
Net loss				(2,531)	(2,531)
Ending balance, value at Jun. 30, 2022	$ 0	$ 0	139,076	(122,073)	17,003
Balance at ending, shares at Jun. 30, 2022	0	1,138,227
Issuance of common stock upon vesting of restricted stock units
Issuance of common stock upon vesting of restricted stock units, shares		1,064
Shares withheld for payroll taxes			(3)		(3)
Shares withheld for payroll taxes, shares		(293)
Stock-based compensation expense			103		103
Net loss				(3,576)	(3,576)
Ending balance, value at Sep. 30, 2022	$ 0	$ 0	139,176	(125,649)	13,527
Balance at ending, shares at Sep. 30, 2022	0	1,138,998
Beginning balance, value at Dec. 31, 2022	$ 2	$ 0	139,218	(128,380)	10,838
Balance at beginning, shares at Dec. 31, 2022	1	1,139,024
Cash-in-lieu of fractional shares for reverse stock split			(11)		(11)
Cash-in-lieu of fractional shares for reverse stock split, shares		(1,706)
Redemption of preferred stock	$ (2)
Redemption of preferred stock, shares	(1)
Issuance of common stock upon vesting of restricted stock units
Issuance of common stock upon vesting of restricted stock units, shares		18,080
Shares withheld for payroll taxes			(25)		(25)
Shares withheld for payroll taxes, shares		(4,816)
Stock-based compensation expense			111		111
Net loss				(3,602)	(3,602)
Ending balance, value at Mar. 31, 2023	$ 0	$ 0	139,293	(131,982)	7,311
Balance at ending, shares at Mar. 31, 2023	0	1,150,582
Beginning balance, value at Dec. 31, 2022	$ 2	$ 0	139,218	(128,380)	10,838
Balance at beginning, shares at Dec. 31, 2022	1	1,139,024
Net loss					(8,931)
Ending balance, value at Sep. 30, 2023	$ 0	$ 0	144,524	(137,311)	7,213
Balance at ending, shares at Sep. 30, 2023	0	2,307,385
Beginning balance, value at Mar. 31, 2023	$ 0	$ 0	139,293	(131,982)	7,311
Balance at beginning, shares at Mar. 31, 2023	0	1,150,582
Issuance of common stock and warrants, net of offering costs	$ 0	$ 0	5,048	0	5,048
Issuance of common stock and warrants, net of offering costs, shares		659,629
Issuance of common stock upon exercise of warrants	0	$ 0	0	0	0
Issuance of common stock upon exercise of warrants, shares		175,000
Stock-based compensation expense			94		94
Net loss				(2,549)	(2,549)
Ending balance, value at Jun. 30, 2023	$ 0	$ 0	144,435	(134,531)	9,904
Balance at ending, shares at Jun. 30, 2023	0	1,985,211
Issuance of common stock upon exercise of warrants	$ 0	$ 0	0	0	0
Issuance of common stock upon exercise of warrants, shares		320,290
Issuance of common stock upon vesting of restricted stock units	0	$ 0	0	0	0
Issuance of common stock upon vesting of restricted stock units, shares		2,000
Shares withheld for payroll taxes
Shares withheld for payroll taxes, shares		(116)
Stock-based compensation expense			89		89
Net loss				(2,780)	(2,780)
Ending balance, value at Sep. 30, 2023	$ 0	$ 0	$ 144,524	$ (137,311)	$ 7,213
Balance at ending, shares at Sep. 30, 2023	0	2,307,385