UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' (DEFICIT) EQUITY - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury stock [Member]	Accumulated deficit [Member]
Balance at Dec. 31, 2021	$ 22,384	$ 22	$ 262,875	$ (2,190)	$ (238,323)
Balance, shares at Dec. 31, 2021		2,166,248		(10,535)
Vesting of restricted stock units, shares		78
Stock-based compensation expense	922		922
Net loss	(11,620)				(11,620)
Balance at Mar. 31, 2022	11,686	$ 22	263,797	$ (2,190)	(249,943)
Balance, shares at Mar. 31, 2022		2,166,326		(10,535)
Balance at Dec. 31, 2022	$ (10,660)	$ 22	263,706		(274,388)
Balance, shares at Dec. 31, 2022	2,166,356	2,166,356
Stock-based compensation expense	$ 597		597
Net loss	(6,230)				(6,230)
Balance at Mar. 31, 2023	$ (16,293)	$ 22	$ 264,303		$ (280,618)
Balance, shares at Mar. 31, 2023	2,166,356	2,166,356