Note 12 - Share-based Compensation - Summary of Share-based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	May 31, 2022	May 31, 2021	May 31, 2022	May 31, 2021
Share-based Compensation Expense	$ 2,105	$ 2,095	$ 4,196	$ 4,137
Share-Based Payment Arrangement, Option [Member]
Share-based Compensation Expense	1,192	1,207	2,385	2,400
Performance Share Units [Member]
Share-based Compensation Expense	859	829	1,695	1,625
Deferred Share Units [Member]
Share-based Compensation Expense	$ 54	$ 59	$ 116	$ 112