Note 5 - Accounts Receivable - Expected Credit Losses Activity (Details) - USD ($)	6 Months Ended
	May 31, 2024	May 31, 2023
Balance	$ 32,137	$ 33,288
Provision charged to expense	30,159	2,095
Accounts Receivable, Allowance for Credit Loss, Writeoff	(12,619)	0
Balance	$ 49,677	$ 35,383