STATEMENTS OF CHANGES IN STOCKHOLDERS' DEFICIT - USD ($)	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Total
Beginning balance (in shares) at Dec. 31, 2018	32,279,368
Beginning balance at Dec. 31, 2018	$ 323,000	$ 21,404,000	$ 21,873,000	$ (146,000)
Shares issued to Cherokee in connection with loan (in shares)	200,000
Shares issued to Cherokee in connection with loan	$ 2,000	12,000		14,000
Shares issued to Lincoln Park for commitment under the 2020 Lincoln Park equity line				0
Shares issued for board meeting attendance in lieu of cash (in shares)	201,616
Shares issued for board meeting attendance in lieu of cash	$ 2,000	15,000		17,000
Share based payment expense		6,000		6,000
Net loss			(681,000)	(681,000)
Ending balance (in shares) at Dec. 31, 2019	32,680,984
Ending balance at Dec. 31, 2019	$ 327,000	21,437,000	(22,554,000)	(790,000)
Shares issued to Cherokee in connection with loan (in shares)	300,000
Shares issued to Cherokee in connection with loan	$ 3,000	18,000		21,000
Shares issued under February 2020 Private Placement (in shares)	2,842,856
Shares issued under February 2020 Private Placement	$ 28,000	171,000		199,000
Shares issued to Lincoln Park for purchases under the 2020 Lincoln Park equity line (in shares)	500,000
Shares issued to Lincoln Park for purchases under the 2020 Lincoln Park equity line	$ 5,000	120,000		125,000
Shares issued to Lincoln Park for commitment under the 2020 Lincoln Park equity line (in shares)	1,250,000
Shares issued to Lincoln Park for commitment under the 2020 Lincoln Park equity line	$ 13,000	125,000		138,000
Non cash costs of commitment shares under Lincoln Park equity line		(138,000)		(138,000)
Expenses related to the 2020 Lincoln Park equity line		(48,000)		(48,000)
Shares issued for board meeting attendance in lieu of cash (in shares)	129,636
Shares issued for board meeting attendance in lieu of cash	$ 1,000	30,000		31,000
Share based payment expense		2,000		2,000
Net loss			(796,000)	(796,000)
Ending balance (in shares) at Dec. 31, 2020	37,703,476
Ending balance at Dec. 31, 2020	$ 377,000	$ 21,717,000	$ (23,350,000)	$ (1,256,000)