Note 3 - Accounts Receivable - Activity in the Allowance for Credit Losses (Details) - USD ($)	12 Months Ended
	Nov. 30, 2024	Nov. 30, 2023
Balance, beginning	$ 32,137	$ 33,288
Provision charged to expense	67,170	(1,151)
Less amounts (charged-off) recovered	9,329	0
Balance, ending	$ 108,636	$ 32,137