Statements of Comprehensive Income (unaudited) - USD ($)		3 Months Ended		9 Months Ended
		Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Revenues
Licenses, royalties and fees		$ 448,600	$ 222,500	$ 755,700	$ 552,900
Product and other sales		237,300	90,000	783,900	884,900
Total revenues		685,900	312,500	1,539,600	1,437,800
Cost of revenues
Licenses, royalties and fees		44,500	28,300	130,400	124,900
Product and other sales		147,900	75,000	429,400	432,500
Total cost of revenues		192,400	103,300	559,800	557,400
Gross profit		493,500	209,200	979,800	880,400
Operating expenses
Research and development		23,900	44,000	95,900	134,300
Sales and marketing		88,900	56,600	230,400	214,000
General and administrative		180,200	122,300	964,600	385,500
Total operating expenses		293,000	222,900	1,290,900	733,800
Net income (loss) from operations		200,500	(13,700)	(311,100)	146,600
Other income (expenses)
Interest income		6,500	5,100	18,400	15,200
Interest expense and bank charges		(500)	(500)	(1,200)	(1,700)
Total other income (expenses)		6,000	4,600	17,200	13,500
Net income (loss) before income taxes		206,500	(9,100)	(293,900)	160,100
Income taxes			(10,200)		1,700
Net income (loss)		$ 206,500	$ 1,100	$ (293,900)	$ 158,400
Net income (loss) per common share**
Basic	[1]	$ 0.03	$ 0.00	$ (0.04)	$ 0.02
Diluted	[1]	$ 0.03	$ 0.00	$ (0.04)	$ 0.02
Weighted average common shares outstanding**
Basic	[1]	7,584,512	6,751,178	7,028,956	6,743,324
Diluted	[1]	7,584,512	6,751,178	7,028,956	6,743,324

[1] Reflects the 1-for-10 reverse stock split that became effective on September 2, 2022. See Note 5.