Statements of Operations (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Product sales	$ 5,177,854	$ 2,557,765	$ 8,992,736	$ 4,923,966
Cost of product sales	1,536,779	956,839	2,900,608	1,885,241
Gross profit	3,641,075	1,600,926	6,092,128	3,038,725
Operating expenses
Research and development	324,612	318,607	671,066	605,358
Sales and marketing	641,168	546,455	1,252,670	1,058,399
General and administrative	1,390,524	1,077,067	2,743,901	2,180,210
Total operating expenses	2,356,304	1,942,129	4,667,637	3,843,967
Operating income (loss)	1,284,771	(341,203)	1,424,491	(805,242)
Other income (expenses), net
Interest income	32,537	76	40,955	124
Interest expense	(1,332)	(104,582)	(2,232)	(187,915)
Amortization of debt discount		(62,398)		(155,996)
Loss from equity-method investment in SAVSU	(176,798)	(260,105)	(320,554)	(489,473)
Total other income (expenses), net	(145,593)	(427,009)	(281,831)	(833,260)
Net income (loss) before provision for income taxes	1,139,178	(768,212)	1,142,660	(1,638,502)
Income taxes
Net income (loss) after provision for income taxes	1,139,178	(768,212)	1,142,660	(1,638,502)
Less: Preferred stock dividends	(93,258)		(199,508)
Net income (loss) attributable to common stockholders	$ 1,045,920	$ (768,212)	$ 943,152	$ (1,638,502)
Basic net income (loss) per common share (in dollars per share)	$ 0.07	$ (0.06)	$ 0.06	$ (0.13)
Diluted net income (loss) per common share (in dollars per share)	$ 0.05	$ (0.06)	$ 0.05	$ (0.13)
Basic shares used to compute earnings per share (in shares)	15,180,169	13,100,820	14,642,378	13,033,106
Diluted shares used to compute earnings per share (in shares)	20,374,358	13,100,820	19,063,595	13,033,106