Note 5 - Accounts Receivable - Expected Credit Losses Activity (Details) - USD ($)	3 Months Ended
	Feb. 29, 2024	Feb. 28, 2023
Balance, beginning	$ 32,137	$ 33,288
Increase in allowance for expected credit losses - accounts receivable	391	1,260
Accounts Receivable, Allowance for Credit Loss, Writeoff	0	0
Balance, ending	$ 32,528	$ 34,548