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Determination of fair values (Tables)
12 Months Ended
Nov. 30, 2023
Disclosure of Fair Value Measurement [Abstract]  
Summary of marathon warrants recognized at fair value and considered level 3
The Marathon Warrants are recognized at fair value and considered Level 3 in the fair value hierarchy. Reasonably possible changes at November 30, 2023, to one of the significant unobservable input, holding other inputs consistent, would have the following effects:
 
 
 
 
  
Net loss
 
 
 
 
  
  Increase
 
 
  Decrease
 
 
 
Expected volatility (10% movement (100 bps))
  
$
   
(100) 
 
$
   125