Statements of Comprehensive Income (unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Revenues
Licenses, royalties and fees	$ 150,200	$ 169,800	$ 273,200	$ 307,100
Product and other sales	449,000	344,500	918,100	546,600
Total revenues	599,200	514,300	1,191,300	853,700
Cost of revenues
Licenses, royalties and fees	49,800	46,400	108,500	85,900
Product and other sales	179,200	154,800	401,000	281,500
Total cost of revenues	229,000	201,200	509,500	367,400
Gross profit	370,200	313,100	681,800	486,300
Operating expenses
Research and development	35,300	32,500	80,100	72,000
Sales and marketing	61,100	76,700	147,400	141,500
General and administrative	223,300	506,700	424,500	784,400
Total operating expenses	319,700	615,900	652,000	997,900
Net income (loss) from operations	50,500	(302,800)	29,800	(511,600)
Other income (expenses)
Interest income	60,400	6,100	122,500	11,900
Interest expense and bank charges	(4,400)	(300)	(5,000)	(700)
Total other income (expenses)	56,000	5,800	117,500	11,200
Net income (loss) before income taxes	106,500	(297,000)	147,300	(500,400)
Income taxes	27,400	0	37,900	0
Net income (loss)	$ 79,100	$ (297,000)	$ 109,400	$ (500,400)
Net income (loss) per common share
Basic	$ 0.01	$ (0.04)	$ 0.01	$ (0.07)
Diluted	$ 0.01	$ (0.04)	$ 0.01	$ (0.07)
Weighted average common shares outstanding
Basic	9,251,178	6,751,178	9,251,178	6,751,178
Diluted	9,251,178	6,751,178	9,251,178	6,751,178