Consolidated Statements of Operations (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Revenues, principally from grants	$ 762,851	$ 405,820	$ 1,410,269	$ 1,213,825
Cost of revenues	(616,330)	(349,511)	(1,172,901)	(903,548)
Gross profit	146,521	56,309	237,368	310,277
Operating expenses:
Research and development	500,980	1,513,722	1,377,774	2,886,526
General and administrative	627,218	475,377	1,282,261	1,079,387
Total operating expenses	1,128,198	1,989,099	2,660,035	3,965,913
Loss from operations	(981,677)	(1,932,790)	(2,422,667)	(3,655,636)
Other income:
Interest income, net	1,799	1,473	4,034	3,908
Net loss	$ (979,878)	$ (1,931,317)	$ (2,418,633)	$ (3,651,728)
Basic and diluted net loss per share	$ (0.09)	$ (0.18)	$ (0.22)	$ (0.34)
Basic and diluted weighted average common shares outstanding	11,124,359	10,899,902	11,121,814	10,871,249