Condensed Consolidated Statements of Cash Flows	9 Months Ended
	Sep. 30, 2017 USD ($) shares	Sep. 30, 2016 USD ($)
Cash flows from operating activities:
Net loss	$ (24,200,665)	$ (18,926,390)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation	113,831	109,382
Stock-based compensation	3,483,451	2,201,949
Warrants issued to former holders of convertible notes	4,438,149
Amortization of commitment fees, debt issuance costs and original issue discount		1,596,093
Amortization of intangible assets	44,777
Change in value of convertible notes payable		200,004
Change in value of warrant liability	283,688	(3,330,254)
Change in operating assets and liabilities:
Accounts receivable	(189,365)	(133,752)
Inventory	(257,157)	(447,537)
Prepaid expenses and other current assets	224,151	459,970
Other assets	443,033	(290,480)
Accounts payable	(788,186)	508,769
Accrued expenses	675,829	(744,036)
Accrued interest payable		1,673,793
Net cash used in operating activities	(15,728,464)	(17,122,489)
Cash flows from investing activities:
Acquisition, net of cash acquired	(1,848,720)
Purchases of property and equipment	(108,625)	(11,544)
Net cash used in investing activities	(1,957,345)	(11,544)
Cash flows from financing activities:
Proceeds from warrants exercised	3,334,176
Proceeds from sale of common stock and warrants for purchase of common stock (January 2017)	6,468,148
Proceeds from convertible notes payable		17,250,000
Repayments on convertible notes payable		(446,867)
Debt issuance costs		(726,793)
Net cash provided by financing activities	37,808,319	16,048,340
Net increase in cash and cash equivalents	20,122,510	(1,085,693)
Cash and cash equivalents:
Beginning of period	3,310,787	7,927,240
End of period	23,433,297	6,841,547
Supplemental disclosure:
Cash paid for interest		169,259
Noncash investing and financing activities:
Issuance of convertible preferred shares and common shares for acquisition	$ 26,258,963
Conversion of convertible preferred shares to common stock | shares	21,528,000
Conversion of convertible notes and interest payable		14,234,201
Series A convertible preferred stock
Cash flows from financing activities:
Proceeds from sale of convertible preferred stock	$ 12,531,000
Series B convertible preferred stock
Cash flows from financing activities:
Proceeds from sale of convertible preferred stock	18,400,000
Common Stock
Cash flows from financing activities:
Payment of stock financing costs	(2,505,244)	$ (28,000)
Preferred Stock
Cash flows from financing activities:
Payment of stock financing costs	$ (419,761)