Consolidated Statements of Shareholders' Equity (Deficit) - USD ($)	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Deficit [Member]	Total
Beginning balance at Dec. 31, 2018	$ 1,000	$ 79,298,200	$ (80,488,700)	$ (1,189,500)
Beginning balance, shares at Dec. 31, 2018	9,804,400
Contributed services		225,100		225,100
Cashless exercise of warrants		300		300
Cashless exercise of warrants, shares	30,466
Other rounding		(100)		(100)
Shares issued for accrued liabilities
Shares issued for accrued liabilities, shares
Proceeds from rights offering
Proceeds from rights offering, shares
Issuance cost for rights offering
Net Income (loss)			554,300	554,300
Ending balance at Dec. 31, 2019	$ 1,000	79,523,500	(79,934,400)	(409,900)
Ending balance, shares at Dec. 31, 2019	9,834,866
Contributed services		112,400		112,400
Cashless exercise of warrants
Cashless exercise of warrants, shares	229,141
Other rounding
Shares issued for accrued liabilities		39,600
Shares issued for accrued liabilities, shares	120,000
Proceeds from rights offering	$ 900	2,599,100		2,600,000
Proceeds from rights offering, shares	8,666,668
Issuance cost for rights offering		(119,400)		(119,400)
Net Income (loss)			693,700	693,700
Ending balance at Dec. 31, 2020	$ 1,900	$ 82,155,200	$ (79,240,700)	$ 2,916,400
Ending balance, shares at Dec. 31, 2020	18,850,675