Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($)	Total	Common Stock	Accumulated Deficit [Member]
Balance, shares at Dec. 31, 2019		22,215,512
Balance, amount at Dec. 31, 2019	$ 7,833,788	$ 24,858,311	$ (17,024,523)
Net income for nine months ended September 30, 2020	524,198		524,198
Unamortized loan origination cost attributable to the $500,000 in aggregate principal amount of notes converted to 1,000,000 shares	(116,400)	(116,400)
Amortization of value of employee stock options	15,168	$ 15,168
Balance, shares at Sep. 30, 2020		22,215,512
Balance, amount at Sep. 30, 2020	8,256,754	$ 24,757,079	(16,500,325)
Balance, shares at Jun. 30, 2020		22,215,512
Balance, amount at Jun. 30, 2020	8,168,712	$ 24,752,535	(16,583,823)
Net income for nine months ended September 30, 2020	83,498		83,498
Amortization of value of employee stock options	4,544	$ 4,544
Balance, shares at Sep. 30, 2020		22,215,512
Balance, amount at Sep. 30, 2020	8,256,754	$ 24,757,079	(16,500,325)
Balance, shares at Dec. 31, 2020		22,215,512
Balance, amount at Dec. 31, 2020	2,356,978	$ 24,763,447	(22,406,469)
Net income for nine months ended September 30, 2020	833,158		833,158
Amortization of value of employee stock options	20,863	$ 20,863
Balance, shares at Sep. 30, 2021		22,215,512
Balance, amount at Sep. 30, 2021	3,210,999	$ 24,784,310	(21,573,311)
Balance, shares at Jun. 30, 2021		22,215,512
Balance, amount at Jun. 30, 2021	3,282,288	$ 24,776,184	(21,493,896)
Net income for nine months ended September 30, 2020	(79,415)		(79,415)
Amortization of value of employee stock options	8,126	$ 8,126
Balance, shares at Sep. 30, 2021		22,215,512
Balance, amount at Sep. 30, 2021	$ 3,210,999	$ 24,784,310	$ (21,573,311)