Condensed Consolidated Statements of Changes in Equity (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Preferred Stock [Member] Series C Convertible Preferred Stock [Member]		Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Balance at Dec. 31, 2021	$ 1		[1]	$ 216,625	$ (183,094)	$ 33,532
Balance, shares at Dec. 31, 2021	8,296,256	1,718
Net loss					(4,481)	(4,481)
Share-based compensation related to restricted stock, restricted stock units and stock options award, net of forfeitures				653		653
Share-based compensation related to restricted stock, restricted stock units and stock options award, net of forfeitures, shares	21,620
Balance at Mar. 31, 2022	$ 1		[1]	217,278	(187,575)	29,704
Balance, shares at Mar. 31, 2022	8,317,876	1,718
Balance at Dec. 31, 2022	$ 1		[2]	218,977	(201,585)	17,393
Balance, shares at Dec. 31, 2022	8,330,918	1,718
Net loss					(4,256)	(4,256)
Share-based compensation related to restricted stock, restricted stock units and stock options award, net of forfeitures				289		289
Share-based compensation related to restricted stock, restricted stock units and stock options award, net of forfeitures, shares	(4,270)
Balance at Mar. 31, 2023	$ 1		[2]	$ 219,266	$ (205,841)	$ 13,426
Balance, shares at Mar. 31, 2023	8,326,648	1,718

[1] Represents an amount less than $1 thousand

[2] Represents an amount less than $1 thousand