Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Statement [Abstract]
Revenues	$ 894,600	$ 948,800	$ 2,805,300	$ 2,734,600
Cost of revenues	42,500	38,100	118,000	106,900
Gross profit	852,100	910,700	2,687,300	2,627,700
Operating expenses:
Selling and marketing	140,300	96,300	396,200	323,900
General and administrative	196,100	166,100	664,600	660,700
Research and development	355,700	361,300	1,076,600	1,118,800
Total operating expenses	692,100	623,700	2,137,400	2,103,400
Income from operations	160,000	287,000	549,900	524,300
Other income:
Other income		200	46,900	14,100
Income before provision for income taxes	160,000	287,200	596,800	538,400
Provision for income taxes	2,500		7,500
Net income (loss)	$ 157,500	$ 287,200	$ 589,300	$ 538,400
Net income per share, basic	$ 0.01	$ 0.03	$ 0.05	$ 0.05
Net income per share, diluted	$ 0.01	$ 0.03	$ 0.05	$ 0.05
Weighted average number of common shares outstanding
Basic	15,242,128	9,834,866	12,216,478	9,816,564
Diluted	15,713,640	10,302,577	12,687,990	10,278,646