Note 10 - Loan and Credit Agreements - Summary of Term Debt (Details) - USD ($)	May 31, 2022	Nov. 30, 2021	May 31, 2021
Long-Term Debt, Total	$ 3,046,160	$ 3,046,160	$ 2,734,929
Less current portion of term debt	116,146		99,462
Term debt, excluding current portion	2,930,014	$ 2,635,467	2,635,467
Term Loan Due October 2037 [Member]
Long-Term Debt, Total	2,213,124		2,260,412
SBA Loan One [Member]
Long-Term Debt, Total	160,973		158,168
SBA Loan Two [Member]
Long-Term Debt, Total	160,973		158,168
SBA Loan Three [Member]
Long-Term Debt, Total	161,091		158,181
Bank Midwest Loan 2 [Member]
Long-Term Debt, Total	$ 350,000		$ 0