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Note 12 - Share-based Compensation - Summary of Stock Options Outstanding (Details)
$ / shares in Units, $ in Thousands
 3 Months Ended
Feb. 28, 2025
USD ($)
$ / shares
shares
Balance, options (in shares) | shares 8,849,535
Balance, weighted average exercise price (in dollars per share) | $ / shares $ 6.12
Expired, options (in shares) | shares (590,835)
Expired, weighted average exercise price (in dollars per share) | $ / shares $ 7.48
Balance, options (in shares) | shares 8,258,700
Balance, weighted average exercise price (in dollars per share) | $ / shares $ 6
Balance, weighted-average remaining contractual term (Year) 2 years 2 months 12 days
Balance, aggregate intrinsic value | $ $ 6
Vested and exercisable, options (in shares) | shares 5,750,648
Vested and exercisable, weighted average exercise price (in dollars per share) | $ / shares $ 6.65
Vested and exercisable, weighted-average remaining contractual term (Year) 1 year 7 months 20 days
Vested and exercisable, aggregate intrinsic value | $ $ 2