Condensed Statements of Changes in Stockholders' Equity (Deficit) (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, 2021		$ 607	$ 420,450	$ (419,928)	$ 1,129
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		34,000,000,000
Net loss				(1,518)	(1,518)
Ending balance, value at Mar. 31, 2022		$ 641	421,004	(421,446)	199
Balance, shares at Mar. 31, 2022		640,970,903
Beginning balance, value at Dec. 31, 2021		$ 607	420,450	(419,928)	1,129
Balance, shares at Dec. 31, 2021		606,970,903
Ending balance, value at Dec. 31, 2022		$ 704	421,468	(425,906)	(3,734)
Balance, shares at Dec. 31, 2022		703,770,903
Cashless exercise of warrants and extinguishment of related warrant derivative liability		$ 20	180		200
Cashless exercise of warrants and extinguishment of related warrant derivative liability, shares		20,000,000,000
Net loss				(3,798)	(3,798)
Ending balance, value at Mar. 31, 2023		$ 724	$ 421,648	$ (429,704)	$ (7,332)
Balance, shares at Mar. 31, 2023		723,770,903