Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Revenues:
Total revenue	$ 1,058,400	$ 961,600	$ 2,101,500	$ 1,911,800
Cost of revenue:
Total cost of revenue	78,800	48,800	154,600	126,200
Gross profit	979,600	912,800	1,946,900	1,785,600
Operating expenses:
Selling and marketing	357,500	315,900	668,400	439,000
General and administrative	382,400	165,900	627,500	370,800
Research and development	416,300	380,800	812,900	763,500
Total operating expenses	1,156,200	862,600	2,108,800	1,573,300
Income from operations	(176,600)	50,200	(161,900)	212,300
Other income (loss):
Unrealized gain (loss) in marketable securities		(29,800)	17,700	(85,500)
Interest and other income	42,000	900	44,200	1,000
Other income (loss)	42,000	(28,900)	61,900	(84,500)
Income (loss) before provision for income taxes	(134,600)	21,300	(100,000)	127,800
Provision for income taxes
Net income (loss)	$ (134,600)	$ 21,300	$ (100,000)	$ 127,800
Net income (loss) per share, basic	$ (0.01)	$ 0.00	$ (0.01)	$ 0.01
Net income (loss) per share, diluted	$ (0.01)	$ 0.00	$ (0.01)	$ 0.01
Weighted average number of common shares outstanding
Basic	18,901,253	18,846,664	18,863,797	18,848,658
Diluted	18,901,253	19,089,238	18,863,797	19,901,102
License [Member]
Revenues:
Total revenue	$ 98,400	$ 132,000	$ 236,600	$ 313,500
Technology Service [Member]
Revenues:
Total revenue	930,100	808,600	1,814,000	1,556,300
Service, Other [Member]
Revenues:
Total revenue	29,900	21,000	50,900	42,000
Service [Member]
Cost of revenue:
Total cost of revenue	27,700	13,500	45,600	27,000
Product [Member]
Cost of revenue:
Total cost of revenue	$ 51,100	$ 35,300	$ 109,000	$ 99,200