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Condensed Statements of Operations (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Statement [Abstract]
Revenues	$ 5,060,105	$ 4,192,331	$ 9,688,696	$ 8,173,386
Cost of revenues	2,430,464	2,060,284	4,659,213	3,977,070
Gross profit	2,629,641	2,132,047	5,029,483	4,196,316
Operating expenses:
Research and development	997,483	917,067	1,891,219	1,863,813
Sales and marketing	771,097	733,839	1,527,011	1,471,695
General and administrative	643,215	625,109	1,346,397	1,289,813
Total operating expenses	2,411,795	2,276,015	4,764,627	4,625,321
Operating income (loss)	217,846	(143,968)	264,856	(429,005)
Interest expense, net	(29,307)	(47,981)	(57,808)	(67,900)
Net income (loss) before income taxes	188,539	(191,949)	207,048	(496,905)
Income tax expense (benefit)	68,749	(53,707)	75,419	(133,634)
Net income (loss)	$ 119,790	$ (138,242)	$ 131,629	$ (363,271)
Net income (loss) per share:
Basic	$ 0.02	$ (0.02)	$ 0.02	$ (0.06)
Diluted	$ 0.02	$ (0.02)	$ 0.02	$ (0.06)
Weighted average shares outstanding:
Basic	5,999,159	5,880,296	5,969,666	6,309,816
Diluted	6,271,507	5,880,296	6,203,889	6,309,816

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