Note 11 - Share-based Compensation - Summary of Share-based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Aug. 31, 2024	Aug. 31, 2023	Aug. 31, 2024	Aug. 31, 2023
Share-based Compensation Expense	$ 515	$ 2,225	$ 5,319	$ 6,526
Share-Based Payment Arrangement, Option [Member]
Share-based Compensation Expense	485	1,170	3,134	3,432
Performance Share Units [Member]
Share-based Compensation Expense	(39)	995	1,982	2,926
Deferred Share Units [Member]
Share-based Compensation Expense	$ 69	$ 60	$ 203	$ 168