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SUPPLEMENTARY CASH FLOW INFORMATION (Tables)
 9 Months Ended
May 31, 2019
Statements [Line Items]  
Disclosure of detailed information about non-cash working capital [Table Text Block]
Period ended   May 31, 2019     May 31, 2018  
Amounts receivable, prepaid expenses and other assets $  500   $  (275 )
Accounts payable and accrued liabilities   247     392  
  $  747   $  117