Consolidated Statements of Operations (USD $)	3 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Income Statement [Abstract]
Revenues	$ 3,806	$ 27,217
Research and development	2,343,313	2,284,383
General and administrative	1,061,016	1,109,382
Total operating expenses	3,404,329	3,393,765
Loss from operations	(3,400,523)	(3,366,548)
Investment income	14,371	15,040
Interest expense	(2,282)	(2,973)
Increase in fair value of warrants	(7,069,165)	0
Gain (loss) on disposition of supplies and equipment	4,620	0
Total other income (expense), net	(7,052,456)	12,067
NET LOSS	$ (10,452,979)	$ (3,354,481)
Basic and diluted net loss per common share	$ (0.15)	$ (0.10)
Weighted average number of common shares outstanding used in computing basic and diluted net loss per common share	71,669,170	34,900,591