Statements of Operations (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Income Statement [Abstract]
Revenues	$ 4,306,122	$ 2,275,247
Cost of revenues	2,697,602	1,482,513
Gross profit	1,608,520	792,734
Operating expenses:
Research and development	903,284	1,156,790
Sales and marketing	2,597,712	2,407,879
General and administrative	1,421,782	1,424,341
Total operating expenses	4,922,778	4,989,010
Loss from operations	(3,314,258)	(4,196,276)
Interest income	4,257	6,705
Change in fair value of warrant liability	77,601	94,316
Net loss	(3,232,400)	(4,095,255)
Deemed dividends attributable to preferred shareholders (Note 9)	(4,041,682)	0
Net loss applicable to common stockholders	$ (7,274,082)	$ (4,095,255)
Net loss per common share applicable to common stockholders, basic and diluted (in dollars per share)	$ (0.91)	$ (1.00)
Weighted average number of common shares outstanding, basic and diluted (in shares)	8,007,901	4,090,358