Condensed Consolidated Statements of Cash Flows (USD $)	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
CASH FLOWS FROM OPERATING ACTIVITIES:
Consolidated net loss	$ (36,984,848)	$ (14,814,358)
Adjustments to reconcile consolidated net loss to net cash used in operating activities:
Gain on settlement of notes payable	(95,427)	0
Noncash stock compensation expense	16,066,856	4,256,000
Noncash stock expense associated with in-licensing agreements	5,350,094	0
Depreciation	2,454	634
Amortization of premium on investment securities	127,260	0
Change in fair value of notes payable	118,615	(210,052)
Changes in assets and liabilities, net of effects of acquisition:
(Increase) decrease in other current assets	(7,585,956)	1,589,950
Increase in accrued interest receivable	(26,652)	0
Decrease (increase) in other assets	13,870	(85,121)
Increase in accounts payable and accrued expenses	3,269,629	3,412,916
(Decrease) increase in interest payable	(94,590)	49,240
Decrease in deferred revenue	(114,286)	(114,286)
Net cash used in operating activities	(19,952,981)	(5,915,077)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of equipment	(4,498)	(3,299)
Investment in held-to-maturity short-term securities	(9,218,008)	0
Net cash used in investing activities	(9,222,506)	(3,299)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from the exercise of warrants	2,890,305	1,997,498
Proceeds from the exercise of options	145,200	0
Payment of notes payable	(677,778)	0
Proceeds from sale of common stock, net	39,558,093	37,648,280
Net cash provided by financing activities	41,915,820	39,645,778
NET INCREASE IN CASH AND CASH EQUIVALENTS	12,740,333	33,727,402
Cash and cash equivalents at beginning of period	40,485,466	16,455,995
CASH AND CASH EQUIVALENTS AT END OF PERIOD	$ 53,225,799	$ 50,183,397