Annual report pursuant to Section 13 and 15(d)

Stock Options by Price Range (Detail)

v2.4.0.8
Stock Options by Price Range (Detail) (USD $)
12 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]    
Outstanding Number of Shares 2,527,388  
Outstanding Weighted Average Exercise Price $ 0.15 $ 0.17
Outstanding Weighted Average Life 5 years 10 months 6 days  
Exercisable Number of Shares 1,997,279  
Exercisable Weighted Average Exercise Price $ 0.20  
Exercise Price Range One [Member]
   
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 2,527,388  
Outstanding Weighted Average Exercise Price $ 0.15  
Outstanding Weighted Average Life 5 years 10 months 6 days  
Exercisable Number of Shares 1,997,279  
Exercisable Weighted Average Exercise Price $ 0.20