Statements of Operations - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Revenues
Licenses, royalties and fees	$ 1,655,600	$ 131,900	$ 1,830,500	$ 290,700
Product and other sales	218,100	227,700	468,600	410,300
Total revenues	1,873,700	359,600	2,299,100	701,000
Cost of revenues
Licenses, royalties and fees	24,200	26,800	49,200	47,800
Product and other sales	93,400	94,100	185,600	166,300
Total cost of revenues	117,600	120,900	234,800	214,100
Gross profit	1,756,100	238,700	2,064,300	486,900
Operating expenses
Research and development	36,100	36,500	73,200	72,900
Sales and marketing	168,500	59,800	238,600	120,700
General and administrative	101,500	68,900	204,200	159,600
Total operating expenses	306,100	165,200	516,000	353,200
Net income from operations	1,450,000	73,500	1,548,300	133,700
Other income (expenses)
Interest income	300		700
Interest expense, bank charges and accretion of interest	(2,800)	(3,100)	(5,700)	(19,300)
Total other income (expenses)	(2,500)	(3,100)	(5,000)	(19,300)
Net income	$ 1,447,500	$ 70,400	$ 1,543,300	$ 114,400
Basic and diluted net income per common share	$ .02	$ 0.00	$ .03	$ 0.00
Weighted average common shares outstanding
Basic	58,616,716	58,599,016	58,616,716	58,599,016
Diluted	58,989,480	58,969,160	58,955,344	58,889,178