Condensed Consolidated Statements of Operations (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Revenues:
Product royalties	$ 855,101		$ 855,101
Research revenues				14,200
Contract revenues	1,908,949	16,297,972	3,530,926	32,802,137
Total Revenues:	2,764,050	16,297,972	4,386,027	32,816,337
Cost of product royalties	690,207	375,000	1,065,207	750,000
Expenses:
Research and development	12,758,215	6,546,579	24,790,383	11,258,189
General and administrative	3,110,754	2,209,284	6,021,010	5,050,079
Related party general and administrative, net	13,000	19,500	29,500	45,750
Total Expenses:	15,881,969	8,775,363	30,840,893	16,354,018
(Loss) Income from operations	(13,808,126)	7,147,609	(27,520,073)	15,712,319
Interest income	96,006	63,501	168,516	120,117
Derivative gain (loss)	392,586	(3,478,793)	1,417,537	(5,346,039)
Other (expense) income, net	(95,477)	50,324	(118,631)	46,860
Net (loss) income before taxes	(13,415,011)	3,782,641	(26,052,651)	10,533,257
Income tax expense			(85,000)
Net (loss) income attributable to common stockholders	$ (13,415,011)	$ 3,782,641	$ (26,137,651)	$ 10,533,257
Basic earnings per share:	$ (0.35)	$ 0.13	$ (0.69)	$ 0.36
Diluted earnings per share:	$ (0.35)	$ 0.12	$ (0.69)	$ 0.35