Consolidated Statements of Cash Flows - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Cash flows from operating activities
Net loss	$ (5,865,941)	$ (2,140,134)
Adjustments to reconcile net loss to net cash used in operating activities:
Stock-based compensation expense	656,192	74,760
Amortization of debt discount		16,066
Amortization of debt issuance costs		1,806
Non-cash interest expense		111,015
Change in fair value of warrant and embedded derivative liabilities		78,230
Depreciation	2,112	304
Changes in operating assets and liabilities:
Prepaid expenses and other current assets	9,066	64,724
Other assets	(30,875)
Accounts payable	(61,941)	483,669
Accrued expenses	1,343,778	150,709
Net cash used in operating activities	(3,947,609)	(1,158,851)
Cash flows from investing activities
Purchases of equipment	(10,651)	(10,256)
Net cash used in investing activities	(10,651)	(10,256)
Cash flows from financing activities
Proceeds from issuance of convertible notes		255,000
Deferred financing fees		(13,275)
Net cash provided by financing activities		241,725
Net increase in cash	(3,958,260)	(927,382)
Cash at beginning of period	48,036,260	2,617,815
Cash at end of period	$ 44,078,000	1,690,433
Supplemental disclosures of non-cash financing activity:
Deferred financing fees		$ 19,489