Note 5 - Accounts Receivable - Expected Credit Losses Activity (Details) - USD ($)	3 Months Ended
	Feb. 28, 2025	Feb. 29, 2024
Balance	$ 108,636	$ 32,137
Provision charged to expense	(2,400)	391
Accounts Receivable, Allowance for Credit Loss, Writeoff	0	0
Balance	$ 106,236	$ 32,528