Condensed Consolidated Statements of Operations (Unaudited) (USD $)	3 Months Ended		6 Months Ended		144 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013
Grant revenue	$ 441,561	$ 705,698	$ 1,238,601	$ 1,559,761	$ 24,207,620
Operating expenses:
Research and development	553,199	712,416	1,435,187	1,784,770	30,109,385
General and administrative	415,784	492,316	1,028,727	1,005,134	20,429,151
Total operating expenses	968,983	1,204,732	2,463,914	2,789,904	50,538,536
Loss from operations	(527,422)	(499,034)	(1,225,313)	(1,230,143)	(26,330,916)
Other income (expense):
Interest income	1,138	1,271	2,232	1,867	346,362
Interest expense					(5,669)
Total other income (expense)	1,138	1,271	2,232	1,867	340,693
Net loss	$ (526,284)	$ (497,763)	$ (1,223,081)	$ (1,228,276)	$ (25,990,223)
Basic and diluted:
Loss per common share (in Dollars per share)	$ (0.02)	$ (0.03)	$ (0.06)	$ (0.07)	$ (2.20)
Weighted average shares outstanding (in Shares)	21,089,687	17,827,313	20,630,515	17,271,940	11,806,485