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Share Purchase Warrants (Tables)
12 Months Ended
May 31, 2014
Schedule of Stockholders' Equity Note, Warrants or Rights, Activity [Table Text Block]
            Weighted Average  
      Warrants     Exercise Price  
  Outstanding at May 31, 2012   25,000,000   $ 0.10  
     Granted   -        
     Exercised   -        
     Expired   -        
     Outstanding at May 31, 2013   25,000,000   $ 0.10  
     Expired   (25,000,000 ) $ 0.10  
  Outstanding at May 31, 2014