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EXPLORATION AND EVALUATION ASSETS (Tables)
9 Months Ended
May 31, 2020
Exploration And Evaluation Assets [Abstract]  
Disclosure of detailed information about exploration and evaluation assets [Table Text Block]
    
Balance, August 31, 2018$29,406 
Additions 8,362 
Foreign exchange movement (976)
Balance, August 31, 2019$36,792 
Additions 2,116 
Foreign exchange movement (4,847)
Balance, May 31, 2020$34,061