Note 14 - Equity Incentive Plan and Stock Based Compensation - Summary of Stock-based Compensation Expense (Details) - USD ($)	3 Months Ended
Feb. 28, 2022	Feb. 28, 2021
Stock-based compensation expense	$ 69,964	$ 62,054
Treasury share repurchase expense	(34,905)	(18,296)
Stock-based compensation expense net of treasury repurchases	$ 35,059	$ 42,758

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

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