Annual report pursuant to Section 13 and 15(d)

Stock Options by Price Range (Detail)

v2.4.0.6
Stock Options by Price Range (Detail) (USD $)
12 Months Ended
Jun. 30, 2012
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Outstanding Number of Shares 4,536,949
Outstanding Weighted Average Exercise Price $ 0.17
Outstanding Weighted Average Life 7 years 7 months 10 days
Exercisable Number of Shares 1,916,712
Exercisable Weighted Average Exercise Price $ 0.04
Exercise Price Range One
 
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Minimum Price Range $ 0.04
Maximum Price Range $ 0.410
Outstanding Number of Shares 4,536,949
Outstanding Weighted Average Exercise Price $ 0.17
Outstanding Weighted Average Life 7 years 7 months 10 days
Exercisable Number of Shares 1,916,712
Exercisable Weighted Average Exercise Price $ 0.04