Condensed Consolidated Statements of Changes in Stockholders' (Deficit) Equity (Unaudited) - USD ($) $ in Thousands	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Beginning balance, value at Dec. 31, 2020		$ 507	$ 418,373	$ (418,389)	$ 491
Beginning balance, shares at Dec. 31, 2020	115	506,779,781
Net loss				(581)	(581)
Common stock issued on conversion of Preferred C shares		$ 30	(30)
Common stock issued on conversion of Preferred C shares, shares	(115)	29,870,130
Beneficial conversion feature			1,000		1,000
Ending balance, value at Mar. 31, 2021		$ 537	419,343	(418,970)	910
Ending balance, shares at Mar. 31, 2021		536,649,911
Beginning balance, value at Dec. 31, 2020		$ 507	418,373	(418,389)	491
Beginning balance, shares at Dec. 31, 2020	115	506,779,781
Ending balance, value at Dec. 31, 2021		$ 607	420,450	(419,928)	1,129
Ending balance, shares at Dec. 31, 2021		606,970,903
Cashless exercise of warrants and extinguishment of related warrant derivative liability		$ 34	554		588
Cashless exercise of warrants and extinguishment of related warrant derivative liability, shares		34,000,000
Net loss				(1,518)	(1,518)
Ending balance, value at Mar. 31, 2022		$ 641	$ 421,004	$ (421,446)	$ 199
Ending balance, shares at Mar. 31, 2022		640,970,903