Note 13 - Equity Incentive Plan - Summary of Stock-based Compensation Expense (Details) - USD ($)	12 Months Ended
	Nov. 30, 2023	Nov. 30, 2022
Stock-based compensation expense	$ 292,185	$ 287,721
Treasury share repurchase expense	(68,536)	(92,432)
Stock-based compensation expense net of treasury repurchases	223,649	195,289
Tax deductions from stock-based compensation expense	$ 232,723	$ 314,306