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Share capital - Stock options plans and changes (Details) - $ / shares	3 Months Ended
	Feb. 28, 2026	Feb. 28, 2025
Share capital
Number of options, Exercised	(153,334)	(263,333)
Weighted average exercise price, Exercised	$ 1.49
Balance - end of period, number of options	9,935,250
Balance - end of period, weighted average exercise price	$ 2.01
Stock options
Share capital
Balance - beginning of the year, number of options	8,433,584
Balance - beginning of the year, weighted average exercise price	$ 1.11
Number of options, Granted	1,655,000
Weighted average exercise price, Granted	$ 6.53
Number of options, Exercised	(153,334)
Weighted average exercise price, Exercised	$ 1.49
Balance - end of period, number of options	9,935,250
Balance - end of period, weighted average exercise price	$ 2.01

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