CONSOLIDATED STATEMENTS OF PREFERRED STOCK AND STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Preferred Stock Series D [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Beginning balance, value at Dec. 31, 2021	$ 0	$ 0	$ 138,832	$ (116,900)	$ 21,932
Balance at beginning, shares at Dec. 31, 2021		1,127,917
Issuance of common stock upon vesting of restricted stock units
Issuance of common stock upon vesting of restricted stock units, shares		14,043
Shares withheld for payroll taxes			(28)		(28)
Shares withheld for payroll taxes, shares		(2,936)
Issuance of preferred stock	$ 2
Issuance of preferred stock, shares	1
Stock-based compensation expense			414		414
Net loss				(11,480)	(11,480)
Ending balance, value at Dec. 31, 2022	$ 2	$ 0	139,218	(128,380)	10,838
Balance at ending, shares at Dec. 31, 2022	1	1,139,024
Cash-in-lieu of fractional shares for reverse stock split			(11)		(11)
Cash-in-lieu of fractional shares for reverse stock split, shares		(1,706)
Redemption of preferred stock	$ (2)
Redemption of preferred stock, shares	(1)
Issuance of common stock and warrants, net of offering costs			7,452		7,452
Issuance of common stock and warrants, net of offering costs, shares		1,963,511
Issuance of common stock upon exercise of warrants
Issuance of common stock upon exercise of warrants, shares		628,935
Issuance of common stock upon vesting of restricted stock units
Issuance of common stock upon vesting of restricted stock units, shares		23,414
Shares withheld for payroll taxes			(26)		(26)
Shares withheld for payroll taxes, shares		(5,849)
Stock-based compensation expense			303		303
Net loss				(10,826)	(10,826)
Ending balance, value at Dec. 31, 2023	$ 0	$ 0	$ 146,936	$ (139,206)	$ 7,730
Balance at ending, shares at Dec. 31, 2023		3,747,329