Note 5 - Accounts Receivable - Expected Credit Losses Activity (Details) - USD ($)	9 Months Ended
	Aug. 31, 2024	Aug. 31, 2023
Balance	$ 32,137	$ 33,288
Provision charged to expense	37,128	1,419
Accounts Receivable, Allowance for Credit Loss, Writeoff	(12,619)	0
Balance	$ 56,646	$ 34,707