Condensed Consolidated Statements of Cash Flows (USD $)	9 Months Ended		22 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013
CASH FLOWS FROM OPERATING ACTIVITIES:
Consolidated net loss	$ (14,814,358)	$ (22,680,898)	$ (41,886,381)
Adjustments to reconcile consolidated net loss to net cash used in operating activities:
Stock compensation expense	4,256,000	2,178,590	7,764,676
Noncash stock expense associated with in-licensing agreement	0	16,578,000	16,875,000
Impairment of in-process research and development	0	0	1,104,700
Depreciation	634	118	869
Change in fair value of notes payable	(210,052)	(284,297)	(1,025,751)
Changes in assets and liabilities, net of effects of acquisition:
Decrease (increase) in other current assets	1,589,950	(1,697,304)	(339,167)
Increase in other assets	(85,121)	0	(85,121)
Increase in accounts payable and accrued expenses	3,412,916	1,505,531	4,416,983
Increase in interest payable	49,240	45,628	117,908
(Decrease) increase in deferred revenue	(114,286)	0	1,866,666
Net cash used in operating activities	(5,915,077)	(4,354,632)	(11,189,618)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(3,299)	(1,399)	(4,698)
Cash acquired in connection with acquisition	0	0	10,386
Net cash (used in) provided by investing activities	(3,299)	(1,399)	5,688
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from the exercise of warrants	1,997,498	0	1,997,498
Payments of short-term loans	0	(200,000)	(200,001)
Proceeds from sale of common stock, net	37,648,280	0	47,472,962
Proceeds from sale of preferred stock, net	0	12,257,309	12,257,309
Offering costs paid	0	(75,903)	(75,903)
Purchase of treasury stock	0	0	(84,538)
Net cash provided by financing activities	39,645,778	11,981,406	61,367,327
NET INCREASE IN CASH AND CASH EQUIVALENTS	33,727,402	7,625,375	50,183,397
Cash and cash equivalents at beginning of period	16,455,995	9,748,491	0
CASH AND CASH EQUIVALENTS AT END OF PERIOD	50,183,397	17,373,866	50,183,397
NONCASH TRANSACTIONS:
Conversion of notes payable to preferred stock	0	0	55,271
Accrued financing costs	$ 0	$ 0	$ 61,138