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Share capital warrants and subscription receipts - Summary Of The Model Used To Determine Fair Value Of Options (Detail) - Stock Appreciation Rights [Member]
12 Months Ended
Nov. 30, 2023
yr
$ / shares
Nov. 30, 2023
yr
$ / shares
Nov. 30, 2022
yr
$ / shares
Nov. 30, 2022
yr
$ / shares
Disclosure Of The Model Used To Determine Fair Value Of Options [Line Items]        
Risk-free interest rate 3.55% 3.55% 3.50% 3.50%
Expected volatility 89.51% 89.51% 58.40% 58.40%
Average option life in years 6.8 6.8 7.8 7.8
Grant-date share price | (per share) $ 1.58 $ 2.15 $ 8.72 $ 11.72
Option exercise price | (per share) $ 16.99 $ 23.07 $ 17.16 $ 23.07