Note 13 - Related Party Transactions (Details Textual) - USD ($)	3 Months Ended		9 Months Ended
	Aug. 31, 2023	Aug. 31, 2022	Aug. 31, 2023	Aug. 31, 2022	Nov. 30, 2022
Revenue from Contract with Customer, Including Assessed Tax	$ 8,117,000	$ 7,476,000	$ 23,429,000	$ 19,031,000
Accrued Liabilities, Current	1,141,578		1,141,578		$ 1,161,761
Related Party [Member]
Revenue from Contract with Customer, Including Assessed Tax	0	0	0	0
Accounts Receivable, after Allowance for Credit Loss	0	0	0	0
Costs and Expenses	4,068	4,209	12,131	19,762
Accrued Liabilities, Current	$ 1,357	$ 1,408	$ 1,357	$ 1,408