Note 13 - Equity Incentive Plan - Summary of Stock-based Compensation Expense (Details) - USD ($)	12 Months Ended
	Nov. 30, 2024	Nov. 30, 2023
Stock-based compensation expense	$ 182,847	$ 292,185
Treasury share repurchase expense	(37,654)	(68,536)
Stock-based compensation expense net of treasury repurchases	145,193	223,649
Tax deductions from stock-based compensation expense	$ 202,557	$ 232,723