Condensed Statements of Operations and Comprehensive Loss (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Income Statement [Abstract]
Net revenues	$ 761,591	$ 1,111,411	$ 2,390,772	$ 4,073,437
Costs and expenses:
Cost of revenues	2,481,916	2,487,054	7,616,473	6,985,213
Research and development expenses	1,089,746	856,698	3,179,612	2,455,947
General and administrative expenses	1,793,720	1,834,771	5,441,354	5,539,432
Sales and marketing expenses	1,404,192	1,675,852	4,473,908	4,701,030
Total costs and expenses	6,769,574	6,854,375	20,711,347	19,681,622
Loss from operations	(6,007,983)	(5,742,964)	(18,320,575)	(15,608,185)
Other income/ (expense):
Interest expense	(63,764)	(88,269)	(230,677)	(385,172)
Other income	23,963	12,804	(6,037)	51,216
Total other income/ (expense):	(39,801)	(75,465)	(236,714)	(333,956)
Loss before income taxes	(6,047,784)	(5,818,429)	(18,557,289)	(15,942,141)
Income tax expense		(2,877)	(739)	(5,023)
Net loss and comprehensive loss	(6,047,784)	(5,821,306)	(18,558,028)	(15,947,164)
Deemed dividend related to warrants down round provision	(636,370)		(636,370)
Net loss attributable to common shareholders	$ (6,684,154)	$ (5,821,306)	$ (19,194,398)	$ (15,947,164)
Weighted-average shares outstanding used in computing net loss per share attributable to common shareholders:
Basic	2,767,440	986,865	2,322,749	860,539
Diluted	2,759,614	986,865	2,320,111	860,539
Net loss per common share:
Basic	$ (2.42)	$ (5.90)	$ (8.26)	$ (18.53)
Diluted	$ (2.42)	$ (5.90)	$ (8.27)	$ (18.53)