Consolidated Statements of Operations (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Revenues:
License revenue		$ 5,000,000
Grant revenue	3,144,620	2,662,822
Total revenues	3,144,620	7,662,822
Cost of grant revenues	(2,593,075)	(2,108,228)
Gross profit	551,545	5,554,594
Operating expenses:
Research and development	2,609,241	6,272,616
General and administrative	2,632,972	2,242,173
Total operating expenses	5,242,213	8,514,789
Loss from operations	(4,690,668)	(2,960,195)
Other income:
Interest income	6,202	7,444
Total other income	6,202	7,444
Net loss before income taxes	(4,684,466)	(2,952,751)
Income tax benefit	521,458	574,157
Net loss	$ (4,163,008)	$ (2,378,594)
Basic and diluted net loss per share	$ (0.37)	$ (0.22)
Basic and diluted weighted average common shares outstanding	11,136,484	10,957,676