Note 12 - Share-based Compensation - Summary of Share-based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended
Feb. 28, 2022	Feb. 28, 2021
Share-based Compensation Expense	$ 2,091	$ 2,042
Share-based Payment Arrangement, Option [Member]
Share-based Compensation Expense	1,193	1,193
Performance Share Units [Member]
Share-based Compensation Expense	836	796
Deferred Share Units [Member]
Share-based Compensation Expense	$ 62	$ 53

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
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