Condensed Consolidated Statements of Shareholder's Equity - USD ($) $ in Thousands	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Treasury Stock [Member]	Total
Balance at Dec. 31, 2020		$ 69	$ 268,729	$ (252,058)	$ (500)	$ 16,240
Balance, shares at Dec. 31, 2020	5,659	68,890,819
Exercising of options			364			364
Exercising of options, shares		227,792
Stock based compensation			13			13
Exercise of common stock warrants		$ 3	5,059			5,062
Exercise of common stock warrants, shares		3,019,247
Net loss				(7,378)		(7,378)
Balance at Mar. 31, 2021		$ 72	274,165	(259,436)	(500)	14,301
Balance, shares at Mar. 31, 2021	5,659	72,137,858
Balance at Dec. 31, 2020		$ 69	268,729	(252,058)	(500)	$ 16,240
Balance, shares at Dec. 31, 2020	5,659	68,890,819
Exercise of common stock warrants, shares						3,343,660
Net loss						$ (7,656)
Balance at Jun. 30, 2021		$ 72	275,173	(259,714)	(500)	15,031
Balance, shares at Jun. 30, 2021	5,659	72,665,730
Balance at Mar. 31, 2021		$ 72	274,165	(259,436)	(500)	14,301
Balance, shares at Mar. 31, 2021	5,659	72,137,858
Exercising of options			381			381
Exercising of options, shares		203,459
Stock based compensation			37			37
Exercise of common stock warrants			590			$ 590
Exercise of common stock warrants, shares		324,413				324,413
Net loss				(278)		$ (278)
Balance at Jun. 30, 2021		$ 72	275,173	(259,714)	(500)	15,031
Balance, shares at Jun. 30, 2021	5,659	72,665,730
Balance at Dec. 31, 2021		$ 72	275,936	(257,264)	(500)	18,244
Balance, shares at Dec. 31, 2021	5,659	72,931,490
Stock based compensation			165			165
Public offering of common shares, net of offering costs			460			460
Public offering of common shares, net of offering costs, shares		405,086
Net loss				(137)		(137)
Balance at Mar. 31, 2022		$ 72	276,561	(257,401)	(500)	18,732
Balance, shares at Mar. 31, 2022	5,659	73,336,576
Balance at Dec. 31, 2021		$ 72	275,936	(257,264)	(500)	$ 18,244
Balance, shares at Dec. 31, 2021	5,659	72,931,490
Exercising of options, shares
Net loss						$ (1,577)
Balance at Jun. 30, 2022		$ 75	278,372	(258,841)	(500)	19,106
Balance, shares at Jun. 30, 2022	5,659	75,621,126
Balance at Mar. 31, 2022		$ 72	276,561	(257,401)	(500)	18,732
Balance, shares at Mar. 31, 2022	5,659	73,336,576
Vesting of RSUs, shares		110,608
Stock based compensation			214			214
Public offering of common shares, net of offering costs		$ 3	1,597			1,600
Public offering of common shares, net of offering costs, shares		2,173,942
Net loss				(1,440)		(1,440)
Balance at Jun. 30, 2022		$ 75	$ 278,372	$ (258,841)	$ (500)	$ 19,106
Balance, shares at Jun. 30, 2022	5,659	75,621,126