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Stock-based compensation (Tables)
9 Months Ended
Mar. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of valuation assumptions for stock options issued
Expected volatility
       
88%
Dividend yield
       
0%
Risk-free interest rate
       
0.77%
Expected life in years
       
3.5
Schedule of summary of stock option activity
 
 
 
 
Options
   
Weighted Average
Exercise Price
 
 
       
Outstanding at June 30, 2014
   
500,000
   
$
0.165
 
     Granted
   
385,000
   
$
0.550
 
     Exercised
   
(55,552
)
 
$
0.165
 
     Forfeited
   
-
     
-
 
 
               
Outstanding at March 31, 2015
   
829,448
   
$
0.344