Annual report pursuant to Section 13 and 15(d)

Warrant Activity and Related Balances Outstanding (Detail)

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Warrant Activity and Related Balances Outstanding (Detail)
12 Months Ended
Jun. 30, 2012
Number  
Stock purchase warrants issued 2,400,328
Stock purchase warrants exercised   
Shares purchasable under outstanding warrants at June 30, 2011 2,400,328
Average Purchase Price Per Share  
Stock purchase warrants issued 0.41
Stock purchase warrants exercised   
Shares purchasable under outstanding warrants at June 30, 2011 0.41