CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS EQUITY - USD ($) $ in Thousands	Common Stock	Paid-In Capital.	Accumulated Deficit	Treasury Stock	Total
Balance at Dec. 31, 2019	$ 3	$ 319,758	$ (302,439)	$ (258)	$ 17,064
Balance, shares at Dec. 31, 2019	3,339,541
Net Loss			(3,287)		(3,287)
Common stock issued, net of issuance costs	$ 2	2,469			2,471
Common stock issued, net of issuance costs (in shares)	1,422,742
Stock compensation expense and related share issuances, net of shares withheld for the payment of taxes (in shares)	511
Balance at Mar. 31, 2020	$ 5	322,227	(305,726)	(258)	16,248
Balance, shares at Mar. 31, 2020	4,762,794
Balance at Dec. 31, 2020	$ 19	383,723	(326,013)	(258)	57,471
Balance, shares at Dec. 31, 2020	19,172,020
Net Loss			(5,390)		(5,390)
Common stock issued, net of issuance costs	$ 13	72,190			72,203
Common stock issued, net of issuance costs (in shares)	13,107,270
Stock compensation expense and related share issuances, net of shares withheld for the payment of taxes		91			91
Stock compensation expense and related share issuances, net of shares withheld for the payment of taxes (in shares)	57,186
Minimum withholding taxes on net share settlements of equity awards		(150)			(150)
Balance at Mar. 31, 2021	$ 32	$ 455,854	$ (331,403)	$ (258)	$ 124,225
Balance, shares at Mar. 31, 2021	32,336,476