Statements of Operations - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenues
Licenses, royalties and fees	$ 164,600	$ 190,500
Product and other sales	355,700	218,900
Total revenues	520,300	409,400
Cost of revenues
Licenses, royalties and fees	49,700	25,200
Product and other sales	201,600	90,300
Total cost of revenues	251,300	115,500
Gross profit	269,000	293,900
Operating expenses
Research and development	41,100	38,000
Sales and marketing	84,000	68,900
General and administrative	139,700	94,100
Total operating expenses	264,800	201,000
Net income from operations	4,200	92,900
Other income (expenses)
Interest income	3,800	1,100
Interest expense and bank charges	(2,500)	(2,700)
Total other income (expenses)	1,300	(1,600)
Net income before income taxes	5,500	91,300
Income taxes	(47,100)	5,900
Net income	$ 52,600	$ 85,400
Basic and diluted net income per common share	$ 0.00	$ 0.00
Weighted average common shares outstanding
Basic	61,044,698	58,616,716
Diluted	61,530,910	59,001,489