Statements of Operations - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Revenues
Licenses, royalties and fees	$ 153,300	$ 189,400	$ 425,000	$ 571,900
Product and other sales	601,500	448,100	1,477,400	991,100
Total revenues	754,800	637,500	1,902,400	1,563,000
Cost of revenues
Licenses, royalties and fees	61,900	41,400	170,200	98,200
Product and other sales	267,400	166,600	716,200	380,300
Total cost of revenues	329,300	208,000	886,400	478,500
Gross profit	425,500	429,500	1,016,000	1,084,500
Operating expenses
Research and development	40,700	45,200	123,700	122,600
Sales and marketing	90,900	81,000	260,900	224,200
General and administrative	123,800	84,200	383,500	265,200
Total operating expenses	255,400	210,400	768,100	612,000
Net income from operations	170,100	219,100	247,900	472,500
Other income (expenses)
Interest income	4,200	4,600	12,300	7,200
Interest expense and bank charges	(1,300)	(2,600)	(5,900)	(8,000)
Total other income (expenses)	2,900	2,000	6,400	(800)
Net income before income taxes	173,000	221,100	254,300	471,700
Income taxes	9,900	14,300	(32,200)	30,600
Net income	$ 163,100	$ 206,800	$ 286,500	$ 441,100
Basic and diluted net income per common share	$ 0.00	$ 0.00	$ 0.00	$ 0.01
Weighted average common shares outstanding
Basic	66,768,023	59,614,698	62,952,473	58,949,377
Diluted	66,893,250	59,990,371	63,069,652	59,322,141