Consolidated Statements of Operations (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Revenues:
Grant revenue	$ 244,290	$ 900,354
Contract revenue	666,307
Total revenues	910,597	900,354
Cost of revenues	(628,981)	(743,657)
Gross profit	281,616	156,697
Operating expenses:
Research and development	1,030,621	756,653
General and administrative	840,904	487,941
Total operating expenses	1,871,525	1,244,594
Loss from operations	(1,589,909)	(1,087,897)
Other income (expense):
Change in fair value of warrant liability	(1,742,090)
Interest income	291	483
Total other income (expense)	(1,741,799)	483
Net loss	$ (3,331,708)	$ (1,087,414)
Basic and diluted net loss per share	$ (0.17)	$ (0.10)
Basic and diluted weighted average common shares outstanding	19,739,470	11,180,739