Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenues:
Total revenue	$ 961,600	$ 899,100	$ 1,911,800	$ 1,759,300
Cost of revenue:
Total cost of revenue	48,800	45,600	126,200	89,800
Gross profit	912,800	853,500	1,785,600	1,669,500
Operating expenses:
Selling and marketing	315,900	153,100	439,000	296,100
General and administrative	165,900	199,600	370,800	414,300
Research and development	380,800	364,500	763,500	727,600
Total operating expenses	862,600	717,200	1,573,300	1,438,000
Income from operations	50,200	136,300	212,300	231,500
Other income (loss):
Unrealized loss in marketable securities	(29,800)	12,400	(85,500)	26,600
Interest and other income	900		1,000	269,800
Other income (loss)	(28,900)	12,400	(84,500)	296,400
Income before provision for income taxes	21,300	148,700	127,800	527,900
Provision for income taxes
Net income	$ 21,300	$ 148,700	$ 127,800	$ 527,900
Net income per share, basic	$ 0.00	$ 0.01	$ 0.01	$ 0.03
Net income per share, diluted	$ 0.00	$ 0.01	$ 0.01	$ 0.03
Weighted average number of common shares outstanding
Basic	18,846,664	18,850,675	18,848,658	18,850,675
Diluted	19,089,238	19,092,981	19,091,102	19,092,981
License [Member]
Revenues:
Total revenue	$ 132,000	$ 174,800	$ 313,500	$ 374,200
Technology Service [Member]
Revenues:
Total revenue	808,600	702,700	1,556,300	1,342,000
Service, Other [Member]
Revenues:
Total revenue	21,000	21,600	42,000	43,100
Service [Member]
Cost of revenue:
Total cost of revenue	13,500	13,500	27,000	27,000
Product [Member]
Cost of revenue:
Total cost of revenue	$ 35,300	$ 32,100	$ 99,200	$ 62,800