Statements of Changes in Stockholders' Equity (Deficit) - 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
Balance, shares at Dec. 31, 2020	115	506,779,781
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
Common stock issued on conversion of notes payable		$ 11	506		517
Common stock issued on conversion of note payable, shares		11,435,288
Issuance of common stock and warrants		$ 35	(10)		25
Issuance of common stock and warrants, shares		35,385,704
Cashless exercise of warrants and extinguishment of related warrant derivative liability		$ 24	611		635
Cashless exercise of warrants and extinguishment of related warrant derivative liability, shares		23,500,000
Net loss				(1,539)	(1,539)
Ending balance, value at Dec. 31, 2021		$ 607	420,450	(419,928)	1,129
Balance, shares at Dec. 31, 2021		606,970,903
Issuance of common stock and warrants		$ 23	164		187
Issuance of common stock and warrants, shares		22,800,000
Cashless exercise of warrants and extinguishment of related warrant derivative liability		$ 74	854		928
Cashless exercise of warrants and extinguishment of related warrant derivative liability, shares		74,000,000
Net loss				(5,978)	(5,978)
Ending balance, value at Dec. 31, 2022		$ 704	$ 421,468	$ (425,906)	$ (3,734)
Balance, shares at Dec. 31, 2022		703,770,903