CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Series A-2 Preferred Stock	Series D Preferred Stock	Series E Preferred Stock	Preferred Stock Series A-2 Preferred Stock	Preferred Stock Series D Preferred Stock	Preferred Stock Series E Preferred Stock	Common Stock	Common Stock Series A-2 Preferred Stock	Common Stock Series D & E Preferred Stock conversion	Treasury Stock	Additional Paid-In Capital	Accumulated Deficit
Preferred stock, beginning balance (in shares) at Dec. 31, 2020					45	1,697,958	131,579
Common stock, beginning balance (in shares) at Dec. 31, 2020								533,000
Treasury stock, beginning balance (in shares) at Dec. 31, 2020											8,000
Beginning Balance at Dec. 31, 2020	$ 22,057				$ 0	$ 0	$ 0	$ 0			$ (181)	$ 215,093	$ (192,855)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(9,051)												(9,051)
Stock-based compensation	713											713
Series D & E Preferred Stock conversion and Series A2 Preferred Stock conversion (in shares)					(45)	(1,697,022)	(131,579)	1,257,000	6,000	1,251,000
Forfeiture of series D stock (in shares)						(81)
Series D shares exchanged for tax (in shares)						(855)
Issuance of stock for services (in shares)								1,000
Issuance of stock for services	274											274
Issuance of shares from financing, net of issuance costs (in shares)								267,000
Issuance of shares from financing, net of issuance costs	$ 11,504											11,504
Issuance of stock on vested restricted stock units (in shares)								13,000
Preferred stock, ending balance (in shares) at Dec. 31, 2021	0	0	0	0	0	0	0
Common stock, ending balance (in shares) at Dec. 31, 2021	2,062,030							2,071,000
Treasury stock, ending balance (in shares) at Dec. 31, 2021	7,553										8,000
Ending Balance at Dec. 31, 2021	$ 25,497				$ 0	$ 0	$ 0	$ 0			$ (181)	227,584	(201,906)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(21,941)												(21,941)
Stock-based compensation	146											146
Forfeiture of unvested stock options	$ (85)											(85)
Preferred stock, ending balance (in shares) at Dec. 31, 2022	0	0	0	0	0	0	0
Common stock, ending balance (in shares) at Dec. 31, 2022	2,070,861							2,071,000
Treasury stock, ending balance (in shares) at Dec. 31, 2022	7,553										8,000
Ending Balance at Dec. 31, 2022	$ 3,617				$ 0	$ 0	$ 0	$ 0			$ (181)	$ 227,645	$ (223,847)