CONDENSED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Revenue
Product revenue	$ 61,445	$ 24,143	$ 135,989	$ 62,289
Collaboration revenue	835,076		1,582,942
Total revenue	896,521	24,143	1,718,931	62,289
Operating Expenses
Cost of product revenue	24,762	8,641	40,907	27,009
Research and development expense	926,791	1,953,647	2,182,243	3,705,388
Sales and marketing expense	157,231	54,050	280,143	218,463
General and administrative expense	2,137,990	1,416,159	5,441,493	3,204,544
Total operating expenses	3,246,774	3,432,497	7,944,786	7,155,404
Loss from operations	(2,350,253)	(3,408,354)	(6,225,855)	(7,093,115)
Interest expense	(156,129)	(254,758)	(336,201)	(538,994)
Other income/(expense)		5,637	1,448	(9,570)
Change in fair value of warrants	700,740		247,321
Loss on extinguishment of debt			(207,713)
Net loss and comprehensive loss	$ (1,805,642)	$ (3,657,475)	$ (6,521,000)	$ (7,641,679)
Net loss per share, basic and diluted (in dollars per share)	$ (0.12)	$ (0.35)	$ (0.45)	$ (0.78)
Weighted-average common shares outstanding, basic and diluted (in shares)	14,694,316	10,314,106	14,427,317	9,810,730