CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Contract revenue	$ 993,885	$ 1,155,839	$ 4,110,833	$ 9,374,155
Operating expenses:
Research and development	1,236,692	1,125,865	3,409,005	3,962,019
General and administrative	3,714,747	1,231,035	6,343,426	5,246,396
Restructuring expense	0	422,482	0	2,519,273
Depreciation	32,235	35,005	110,371	108,798
Total operating expenses	4,983,674	2,814,387	9,862,802	11,836,486
Loss from operations	(3,989,789)	(1,658,548)	(5,751,969)	(2,462,331)
Other income:
Interest income (expense), net	25,186	(9,888)	25,614	(48,492)
Realization of cumulative translation adjustment	0	0	0	(229,192)
Change in fair value of derivative instruments	(352,057)	359,796	(642,643)	577,426
Other income - litigation	113,566,451	0	122,461,489	0
Other income (expense)	659	(691)	6,400	6,594
Total other income	113,240,239	349,217	121,850,860	306,336
Net income (loss) before income taxes	109,250,450	(1,309,331)	116,098,891	(2,155,995)
Income tax provision	(15,437)	(15,437)	(46,310)	(46,310)
Net income (loss)	$ 109,235,013	$ (1,324,768)	$ 116,052,581	$ (2,202,305)
Basic net income (loss) per share	$ 1.68	$ (0.02)	$ 1.79	$ (0.03)
Diluted net income (loss) per share	$ 1.67	$ (0.02)	$ 1.79	$ (0.03)
Weighted average shares used in calculation of basic net income (loss) per share	65,001,584	64,187,618	64,715,647	63,858,500
Weighted average shares used in calculation of diluted net income (loss) per share	65,814,765	64,187,618	65,322,158	63,858,500