Statement of Stockholders' Equity - USD ($)	Common stock [Member]	Paid-in Capital [Member]	Accumulated Deficit [Member]	Total
Balance at Dec. 31, 2017	$ 586,200	$ 12,440,000	$ (12,811,000)	$ 215,200
Balance, shares at Dec. 31, 2017	58,616,716			58,616,716
Cumulative effect of accounting at January 1, 2018, Note 2			96,100	$ 96,100
Net income			1,655,400	1,655,400
Balance at Dec. 31, 2018	$ 586,200	12,440,000	(11,059,500)	$ 1,966,700
Balance, shares at Dec. 31, 2018	58,616,716			58,616,716
Issuance of common stock	$ 7,100	18,300		$ 25,400
Issuance of common stock shares	720,000
Conversion of debentures and accrued interest to common stock	$ 17,100	25,600		42,700
Conversion of debentures and accrued interest to common stock shares	1,707,982
Net income			754,900	754,900
Balance at Dec. 31, 2019	$ 610,400	$ 12,483,900	$ (10,304,600)	$ 2,789,700
Balance, shares at Dec. 31, 2019	61,044,698			61,044,698