Share capital - Narrative (Details) $ in Thousands		3 Months Ended
	Nov. 07, 2025 USD ($)	Feb. 28, 2026 USD ($) shares	Feb. 28, 2026 USD ($) $ / shares shares	Feb. 28, 2025 USD ($) shares	Feb. 28, 2025 USD ($) $ / shares	Feb. 28, 2026 $ / shares	Nov. 30, 2025 $ / shares shares
Share capital
Stock-based compensation | $		$ (3,096)		$ (2,258)
Non-vested stock options outstanding		9,935,250	9,935,250
Weighted average exercise price outstanding | $ / shares						$ 2.01
Stock option expense not yet recognized | $		$ 2,000	$ 2,000
Period for recognition of stock compensation expense		22 months
Exercise of options, Number of shares		153,334		263,333
Stock options granted, weighted average exercise price | $ / shares			$ 1.49
Reclassification from reserves to share capital | $		$ 100	$ 100
Aggregate intrinsic value, vested options | $		27,800	$ 27,800	$ 6,000	$ 6,000
Aggregate intrinsic value, options exercised | $		$ 600		$ 200
Number of shares, conversion		1
Equity distribution program, aggregate offering amount | $	$ 200,000
Share capital
Share capital
Exercise of options, Number of shares		153,334		263,333
Shares issued from Restricted Share Units, Number of shares		1,148,007		2,647,945
Nonvested Options
Share capital
Non-vested stock options outstanding		1,435,005	1,435,005
Weighted average exercise price outstanding | $ / shares						4.67
Stock options
Share capital
Stock options granted		1,655,000
Weighted-average exercise price | $ / shares			$ 6.53
Non-vested stock options outstanding		9,935,250	9,935,250				8,433,584
Weighted average exercise price outstanding | $ / shares						$ 2.01	$ 1.11
Exercise of options, Number of shares		153,334
Stock options granted, weighted average exercise price | $ / shares			$ 1.49
Stock option
Share capital
Stock-based compensation | $		$ 2,300		$ 700
RSUs and DSUs
Share capital
Stock-based compensation | $		$ 800		$ 1,400
Employees, consultants and directors
Share capital
Vesting period		2 years		2 years
Stock options granted		1,655,000		2,125,000
Weighted-average exercise price | $ / shares			6.53		$ 1.52
Stock options granted, expiration period		5 years		5 years
Stock options granted, weighted average fair value | $ / shares			$ 2.49		$ 0.59