Statements of Comprehensive Income - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Revenues
Licenses, royalties and fees	$ 137,300	$ 185,500
Product and other sales	202,100	425,900
Total revenues	339,400	611,400
Cost of revenues
Licenses, royalties and fees	39,500	47,100
Product and other sales	126,700	173,200
Total cost of revenues	166,200	220,300
Gross profit	173,200	391,100
Operating expenses
Research and development	39,500	44,500
Sales and marketing	64,800	83,200
General and administrative	277,700	145,500
Total operating expenses	382,000	273,200
Net income (loss) from operations	(208,800)	117,900
Other income (expenses)
Interest income	5,800	4,800
Interest expense and bank charges	(400)	(600)
Total other income (expenses)	5,400	4,200
Net income (loss) before income taxes	(203,400)	122,100
Income taxes		7,300
Net income (loss)	$ (203,400)	$ 114,800
Basic net income (loss) per common share	$ (0.00)	$ 0.00
Diluted net income (loss) per common share	$ (0.00)	$ 0.00
Weighted average common shares outstanding
Basic	67,495,055	67,353,690
Diluted	67,495,055	67,477,603