COMMON STOCK - Summary of common stock warrant activity (Details 2) (Warrants)	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Warrants
Class Of Warrant Or Right [Roll Forward]
Outstanding at June 30	8,045,619	15,567,199	13,526,748
Issued	45,000		4,541,670
Exercised	(399,597)	(7,317)	(1,001,219)
Expired	(329,314)	(7,514,263)	(1,500,000)
Outstanding at June 30	7,361,708	8,045,619	15,567,199