Condensed Consolidated Statements of Stockholders' Equity (Deficit) (Unaudited) - USD ($) $ in Thousands	Total	Preferred Stock	Common Stock	Treasury Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Loss	Accumulated Deficit
Beginning balance at Dec. 31, 2022	$ 66,450	$ 0	$ 11	$ 0	$ 315,345	$ (61)	$ (248,845)
Beginning balance (in shares) at Dec. 31, 2022		0	105,032,588	10,762,566
Shares issued during the period for vested restricted stock awards	2,775				2,775
Shares issued during the period for vested restricted stock awards, shares			1,498,987
Issuance of common stock upon exercise of stock options	51				51
Issuance of common stock upon exercise of stock options, shares			265,125
Shares issued for legal settlement	2,000				2,000
Shares issued for legal settlement, shares			797,396
Sale of shares	6,292				6,292
Sale of shares, shares			2,683,000
Stock offering costs	(32)				(32)
Stock-based compensation	2,472				2,472
Net loss	(11,762)						(11,762)
Other comprehensive gain (loss)	(5)					(5)
Ending balance at Mar. 31, 2023	68,241	$ 0	$ 11	$ 0	328,903	(66)	(260,607)
Ending balance (in shares) at Mar. 31, 2023		0	110,277,096	10,762,566
Beginning balance at Dec. 31, 2023	62,471	$ 0	$ 13	$ 0	361,886	(293)	(299,135)
Beginning balance (in shares) at Dec. 31, 2023		0	125,445,325	10,762,566
Shares issued during the period for vested restricted stock awards, shares			506,928
Stock-based compensation	1,639				1,639
Net loss	(8,771)						(8,771)
Other comprehensive gain (loss)	(181)					(181)
Ending balance at Mar. 31, 2024	$ 55,158	$ 0	$ 13	$ 0	$ 363,525	$ (474)	$ (307,906)
Ending balance (in shares) at Mar. 31, 2024		0	125,952,253	10,762,566