Consolidated Statements of Changes in Equity - 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									(14,918)	(14,918)
Issuance of common shares, including at the market offering net of $2,024 issuance costs		$ 1						25,241		25,242
Issuance of common shares, 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 shares	[1]
Conversion of series B convertible preferred stock to common shares, shares		207,528		(17,303)
Conversion of Series C Convertible Preferred Stock to common shares	[1]
Conversion of series C convertible preferred stock to common shares, shares		831				(625)
Share-based compensation related to restricted stock, restricted stock units and stock options award, net of forfeitures of shares								1,576		1,576
Share-based compensation related to restricted stock, restricted stock units and stock options award, net of forfeitures, shares		399,120
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		45,268
Ending balance, value at Dec. 31, 2021		$ 1					[1]	216,625	(183,094)	33,532
Ending balance, shares at Dec. 31, 2021		8,296,256				1,718
Net loss									(18,491)	(18,491)
Share-based compensation related to restricted stock, restricted stock units and stock options award, net of forfeitures of shares								2,352		2,352
Share-based compensation related to restricted stock, restricted stock units and stock options award, net of forfeitures, shares		34,662
Ending balance, value at Dec. 31, 2022		$ 1						$ 218,977	$ (201,585)	$ 17,393
Ending balance, shares at Dec. 31, 2022		8,330,918				1,718

[1] Represents an amount less than $1