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Provision for reclamation (Tables)
12 Months Ended
Aug. 31, 2025
Provision For Reclamation  
Disclosure of reconciliation of changes in intangible assets and goodwill [text block]
           
   For the year ended August 31, 
   2025   2024 
Balance at beginning of year  $1,091   $833 
(Decrease) increase in estimate for provision for reclamation   (240)   486 
Change in discount rate   159    (336)
Accretion of provision for reclamation (Notes 21 and 26)   141    108 
Total amount  $1,151   $1,091