Condensed Consolidated Statements of Changes in Equity (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]		Preferred Stock [Member] Series B Convertible Preferred Stock [Member]		Preferred Stock [Member] Series C Convertible Preferred Stock [Member]		Additional Paid-in Capital [Member]		Retained Earnings [Member]	Total
Beginning balance, value at Dec. 31, 2020		[1]		[1]		[1]	$ 180,339		$ (168,176)	$ 12,163
Beginning balance, shares at Dec. 31, 2020	3,284,322		17,303		2,343
Net loss									(10,821)	(10,821)
Issuance of common stock, including at the market offering net of $2,024 issuance costs	$ 1						25,241			25,242
Issuance of common stock, including at the market offering net of $2,024 issuance costs, shares	3,133,775
Exercise of Warrants F		[1]					8,120			8,120
Exercise of Warrants F, shares	1,093,536
Exercise of Warrants G		[1]					1,349			1,349
Exercise of Warrants G, shares	131,876
Conversion of Series B Convertible Preferred Stock to common stock		[1]		[1]				[1]			[1]
Conversion of Series B Convertible Preferred Stock to common stock, shares	207,528		(17,303)
Conversion of Series C Convertible Preferred Stock to common stock		[1]				[1]		[1]			[1]
Conversion of Series C Convertible Preferred Stock to common stock, shares	831				(625)
Share-based compensation related to restricted stock, restricted stock units and stock options award, net of forfeitures		[1]					1,010			1,010
Share-based compensation related to restricted stock, restricted stock units and stock options award, net of forfeitures, shares	3,166
Round up of shares due to reverse stock split effectuated on April 26, 2021		[1]									[1]
Round up of shares due to reverse stock split effectuated on April 26, 2021, shares	45,277
Ending balance, value at Sep. 30, 2021	$ 1			[1]		[1]	216,059		(178,997)	37,063
Ending balance, shares at Sep. 30, 2021	7,900,311				1,718
Beginning balance, value at Jun. 30, 2021	$ 1					[1]	215,755		(174,926)	40,830
Beginning balance, shares at Jun. 30, 2021	7,914,339				1,718
Net loss									(4,071)	(4,071)
Share-based compensation related to restricted stock, restricted stock units and stock options award, net of forfeitures		[1]					304			304
Share-based compensation related to restricted stock, restricted stock units and stock options award, net of forfeitures, shares	(11,917)
Round up of shares due to reverse stock split effectuated on April 26, 2021		[1]									[1]
Round up of shares due to reverse stock split effectuated on April 26, 2021, shares	(2,111)
Ending balance, value at Sep. 30, 2021	$ 1			[1]		[1]	216,059		(178,997)	37,063
Ending balance, shares at Sep. 30, 2021	7,900,311				1,718
Beginning balance, value at Dec. 31, 2021	$ 1					[1]	216,625		(183,094)	33,532
Beginning balance, shares at Dec. 31, 2021	8,296,256				1,718
Net loss									(13,646)	(13,646)
Share-based compensation related to restricted stock, restricted stock units and stock options award, net of forfeitures							1,984			1,984
Share-based compensation related to restricted stock, restricted stock units and stock options award, net of forfeitures, shares	39,350
Ending balance, value at Sep. 30, 2022	$ 1					[1]	218,609		(196,740)	21,870
Ending balance, shares at Sep. 30, 2022	8,335,606				1,718
Beginning balance, value at Jun. 30, 2022	$ 1					[1]	217,952		(192,211)	25,742
Beginning balance, shares at Jun. 30, 2022	8,323,200				1,718
Net loss									(4,529)	(4,529)
Share-based compensation related to restricted stock, restricted stock units and stock options award, net of forfeitures							657			657
Share-based compensation related to restricted stock, restricted stock units and stock options award, net of forfeitures, shares	12,406
Ending balance, value at Sep. 30, 2022	$ 1					[1]	$ 218,609		$ (196,740)	$ 21,870
Ending balance, shares at Sep. 30, 2022	8,335,606				1,718

[1] Represents an amount less than $1 thousand