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Condensed Consolidated Statements of Operations (Unaudited) (USD $)
3 Months Ended9 Months Ended124 Months Ended
Sep. 30, 2011
Sep. 30, 2010
Sep. 30, 2011
Sep. 30, 2010
Sep. 30, 2011
Grant revenue$ 1,297,006$ 1,163,288$ 3,943,041$ 4,239,017$ 19,354,848
Operating expenses:     
Research and development1,089,938908,7803,313,8574,019,93124,668,158
General and administrative583,386903,8501,824,5792,508,53916,499,683
Total operating expenses1,673,3241,812,6305,138,4366,528,47041,167,841
Loss from operations(376,318)(649,342)(1,195,395)(2,289,453)(21,812,993)
Other income (expense):     
Interest income4664,6761,91720,909340,008
Interest expense    (5,669)
Total other income (expense)4664,6761,91720,909334,339
Net loss$ (375,852)$ (644,666)$ (1,193,478)$ (2,268,544)$ (21,478,654)
Basic and diluted:     
Loss per common share (in Dollars per share)$ (0.02)$ (0.04)$ (0.08)$ (0.14)$ (2.03)
Weighted average shares outstanding (in Shares)15,764,52515,654,84615,716,76715,650,11610,567,089