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SUPPLEMENTARY CASH FLOW INFORMATION - Disclosure of detailed information about non-cash working capital (Details) - USD ($)
$ in Thousands
9 Months Ended
May 31, 2020
May 31, 2019
Supplementary Cash Flow Information [Abstract]    
Amounts receivable, prepaid expenses and other assets $ 617 $ 500
Accounts payable and other liabilities (873) 247
Net change in non-cash working capital $ (256) $ 747