Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Income Statement [Abstract]
Revenues	$ 1,053,800	$ 822,300
Cost of revenues	29,200	28,800
Gross profit	1,024,600	793,500
Operating expenses:
Selling and marketing	117,000	101,600
General and administrative	295,000	305,200
Research and development	374,500	428,500
Total operating expenses	786,500	835,300
Income (loss) from operations	238,100	(41,800)
Other income (expense)	13,800	(800)
Income (loss) before provision for income taxes	251,900	(42,600)
Provision for income taxes		1,000
Net income (loss)	$ 251,900	$ (43,600)
Net income (loss) per share, basic	$ 0.03	$ 0.00
Net income (loss) per share, diluted	$ 0.02	$ 0.00
Weighted average number of common shares outstanding
Basic	9,804,400	9,804,400
Diluted	10,301,148	9,804,400