CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Series D and 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 and E Preferred Stock	Treasury Stock	Additional Paid-In Capital	Additional Paid-In Capital Series D and E Preferred Stock	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						7,861,912
Treasury Stock, Beginning Balance (in shares) at Dec. 31, 2020									113,283
Beginning Balance at Dec. 31, 2020	$ 22,057		$ 0	$ 0	$ 0	$ 1			$ (181)	$ 215,092		$ (192,855)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(3,433)											(3,433)
Stock-based compensation	33									33
Preferred stock conversion (in shares)			(45)	1,697,022	131,579		(84,292)	(18,762,119)
Conversion of Series D and E Preferred Stock		$ 0						$ 2			$ (2)
Issuance of stock for services (in shares)						21,008
Issuance of stock for services	274									274
Forfeitures of restricted stock (in shares)				(81)
Series D Preferred shares to pay withholding taxes (in shares)				(855)
Preferred Stock, Ending Balance (in shares) at Mar. 31, 2021			0	0	0
Common Stock, Ending Balance (in shares) at Mar. 31, 2021						26,729,331
Treasury Stock, Ending Balance (in shares) at Mar. 31, 2021									113,283
Ending Balance at Mar. 31, 2021	18,931		$ 0	$ 0	$ 0	$ 3			$ (181)	215,397		(196,288)
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						7,861,912
Treasury Stock, Beginning Balance (in shares) at Dec. 31, 2020									113,283
Beginning Balance at Dec. 31, 2020	22,057		$ 0	$ 0	$ 0	$ 1			$ (181)	215,092		(192,855)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(5,679)
Preferred Stock, Ending Balance (in shares) at Jun. 30, 2021			0	0	0
Common Stock, Ending Balance (in shares) at Jun. 30, 2021						30,729,331
Treasury Stock, Ending Balance (in shares) at Jun. 30, 2021									113,283
Ending Balance at Jun. 30, 2021	28,305		$ 0	$ 0	$ 0	$ 3			$ (181)	227,017		(198,534)
Preferred Stock, Beginning Balance (in shares) at Mar. 31, 2021			0	0	0
Common Stock, Beginning Balance (in shares) at Mar. 31, 2021						26,729,331
Treasury Stock, Beginning Balance (in shares) at Mar. 31, 2021									113,283
Beginning Balance at Mar. 31, 2021	18,931		$ 0	$ 0	$ 0	$ 3			$ (181)	215,397		(196,288)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(2,246)											(2,246)
Issuance of stock from financing, net of issuance costs (in shares)						4,000,000
Issuance of stock from financing, net of issuance costs	11,504									11,504
Issuance of stock for services	116									116
Preferred Stock, Ending Balance (in shares) at Jun. 30, 2021			0	0	0
Common Stock, Ending Balance (in shares) at Jun. 30, 2021						30,729,331
Treasury Stock, Ending Balance (in shares) at Jun. 30, 2021									113,283
Ending Balance at Jun. 30, 2021	$ 28,305		$ 0	$ 0	$ 0	$ 3			$ (181)	227,017		(198,534)
Common Stock, Beginning Balance (in shares) at Dec. 31, 2021	30,816,048					30,929,331
Treasury Stock, Beginning Balance (in shares) at Dec. 31, 2021									113,283
Beginning Balance at Dec. 31, 2021	$ 25,497					$ 3			$ (181)	227,581		(201,906)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(4,539)											(4,539)
Stock-based compensation	52									52
Forfeiture of unvested stock options	(84)									(84)
Common Stock, Ending Balance (in shares) at Mar. 31, 2022						30,929,331
Treasury Stock, Ending Balance (in shares) at Mar. 31, 2022									113,283
Ending Balance at Mar. 31, 2022	$ 20,926					$ 3			$ (181)	227,549		(206,445)
Common Stock, Beginning Balance (in shares) at Dec. 31, 2021	30,816,048					30,929,331
Treasury Stock, Beginning Balance (in shares) at Dec. 31, 2021									113,283
Beginning Balance at Dec. 31, 2021	$ 25,497					$ 3			$ (181)	227,581		(201,906)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	$ (13,572)
Forfeitures of restricted stock (in shares)	(150,000)
Common Stock, Ending Balance (in shares) at Jun. 30, 2022	30,816,048					30,929,331
Treasury Stock, Ending Balance (in shares) at Jun. 30, 2022									113,283
Ending Balance at Jun. 30, 2022	$ 11,924					$ 3			$ (181)	227,580		(215,478)
Common Stock, Beginning Balance (in shares) at Mar. 31, 2022						30,929,331
Treasury Stock, Beginning Balance (in shares) at Mar. 31, 2022									113,283
Beginning Balance at Mar. 31, 2022	20,926					$ 3			$ (181)	227,549		(206,445)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(9,033)											(9,033)
Stock-based compensation	$ 31									31
Common Stock, Ending Balance (in shares) at Jun. 30, 2022	30,816,048					30,929,331
Treasury Stock, Ending Balance (in shares) at Jun. 30, 2022									113,283
Ending Balance at Jun. 30, 2022	$ 11,924					$ 3			$ (181)	$ 227,580		$ (215,478)