Changes in Stockholders' Deficit (Details) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Common Stock
Beginning balance, shares	32,680,984	32,279,368
Beginning balance, amount	$ 327,000	$ 323,000
Shares issued in connection with private placement, shares	2,842,856
Shares issued in connection with private placement, amount	$ 28,000
Shares issued to Cherokee in connection with loan, shares	300,000	200,000
Shares issued to Cherokee in connection with loan, amount	$ 3,000	$ 2,000
Shares issued for board meeting attendance in lieu of cash, shares	23,253	38,993
Net loss
Ending balance, shares	35,847,093	32,518,361
Ending balance, amount	$ 358	$ 325,000
Additional Paid in Capital
Beginning balance, amount	21,437,000	21,404,000
Shares issued in connection with private placement, amount	171,000
Shares issued to Cherokee in connection with loan, amount	18,000	12,000
Shares issued for board meeting attendance in lieu of cash, amount	5,000	3,000
Share based payment expense	1,000	2,000
Net loss
Ending balance, amount	21,632,000	21,421,000
Accumulated Deficit
Beginning balance, amount	(22,554,000)	(21,873,000)
Net loss	(325,000)	(240,000)
Ending balance, amount	(22,879,000)	(22,113,000)
Beginning balance, amount	(790,000)	(146,000)
Shares issued in connection with private placement, amount	191,000
Shares issued to Cherokee in connection with loan, amount	2,000	14,000
Shares issued for board meeting attendance in lieu of cash, amount	5,000	3,000
Share based payment expense	1,000	2,000
Net loss	(325,000)	(240,000)
Ending balance, amount	$ (888,000)	$ (367,000)