Statements of Comprehensive Income (unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenues
Licenses, royalties and fees	$ 169,800	$ 144,900	$ 307,100	$ 330,400
Product and other sales	344,500	369,000	546,600	794,900
Total revenues	514,300	513,900	853,700	1,125,300
Cost of revenues
Licenses, royalties and fees	46,400	49,500	85,900	96,600
Product and other sales	154,800	184,300	281,500	357,500
Total cost of revenues	201,200	233,800	367,400	454,100
Gross profit	313,100	280,100	486,300	671,200
Operating expenses
Research and development	32,500	45,800	72,000	90,300
Sales and marketing	76,700	74,200	141,500	157,400
General and administrative	506,700	117,700	784,400	263,200
Total operating expenses	615,900	237,700	997,900	510,900
Net income (loss) from operations	(302,800)	42,400	(511,600)	160,300
Other income (expenses)
Interest income	6,100	5,300	11,900	10,100
Interest expense and bank charges	(300)	(600)	(700)	(1,200)
Total other income (expenses)	5,800	4,700	11,200	8,900
Net income (loss) before income taxes	(297,000)	47,100	(500,400)	169,200
Income taxes		4,600		11,900
Net income (loss)	$ (297,000)	$ 42,500	$ (500,400)	$ 157,300
Basic net income (loss) per common share	$ (0.00)	$ 0.00	$ (0.01)	$ 0.00
Diluted net income (loss) per common share	$ (0.00)	$ 0.00	$ (0.01)	$ 0.00
Basic weighted average common shares outstanding	67,495,055	67,400,812	67,495,055	67,377,251
Diluted weighted average common shares outstanding	67,495,055	67,400,812	67,495,055	67,377,251