Condensed Consolidated Statements of Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]
Beginning balance, value at Dec. 31, 2020	$ 14,514		$ 244,850	$ (230,336)
Beginning balance, shares at Dec. 31, 2020		77,573,680
Common stock issued on vesting of restricted stock units
Common stock issued on vesting of restricted stock units, shares		244,716
Private placement of common stock, net of issuance costs of $1,926	12,831		12,831
Private placement of common stock, net of issuance costs of $1,926, shares		8,888,890
Warrants issued in connection with the private placement	5,243		5,243
Warrants issued in connection with the private placement to placement agents	351		351
Stock-based compensation	456		456
Net loss	(29)			(29)
Ending balance, value at Mar. 31, 2021	33,366		263,731	(230,365)
Ending balance, shares at Mar. 31, 2021		86,707,286
Beginning balance, value at Dec. 31, 2020	14,514		244,850	(230,336)
Beginning balance, shares at Dec. 31, 2020		77,573,680
Net loss	(762)
Ending balance, value at Jun. 30, 2021	33,884		264,982	(231,098)
Ending balance, shares at Jun. 30, 2021		86,707,286
Beginning balance, value at Mar. 31, 2021	33,366		263,731	(230,365)
Beginning balance, shares at Mar. 31, 2021		86,707,286
Gain on debt extinguishment	786		786
Stock-based compensation	465		465
Net loss	(733)			(733)
Ending balance, value at Jun. 30, 2021	33,884		264,982	(231,098)
Ending balance, shares at Jun. 30, 2021		86,707,286
Beginning balance, value at Dec. 31, 2021	30,883		266,068	(235,185)
Beginning balance, shares at Dec. 31, 2021		87,068,980
Common stock issued on vesting of restricted stock units
Common stock issued on vesting of restricted stock units, shares		244,721
Stock-based compensation	613		613
Net loss	(2,213)			(2,213)
Ending balance, value at Mar. 31, 2022	29,283		266,681	(237,398)
Ending balance, shares at Mar. 31, 2022		87,313,701
Beginning balance, value at Dec. 31, 2021	30,883		266,068	(235,185)
Beginning balance, shares at Dec. 31, 2021		87,068,980
Net loss	(3,923)
Ending balance, value at Jun. 30, 2022	28,144		267,252	(239,108)
Ending balance, shares at Jun. 30, 2022		87,313,701
Beginning balance, value at Mar. 31, 2022	29,283		266,681	(237,398)
Beginning balance, shares at Mar. 31, 2022		87,313,701
Stock-based compensation	571		571
Net loss	(1,710)			(1,710)
Ending balance, value at Jun. 30, 2022	$ 28,144		$ 267,252	$ (239,108)
Ending balance, shares at Jun. 30, 2022		87,313,701