Note 9 - Loan and Credit Agreements - Summary of Term Debt (Details) - USD ($)	Nov. 30, 2021	Nov. 30, 2020
Long-term Debt, Total	$ 2,734,929	$ 2,808,129
Less current portion of term debt	99,462	94,979
Term debt, excluding current portion	2,635,467	2,713,150
Term Loan Due October 2037 [Member]
Long-term Debt, Total	2,260,412	2,350,593
SBA Loan One [Member]
Long-term Debt, Total	158,168	152,543
SBA Loan Two [Member]
Long-term Debt, Total	158,181	152,450
SBA Loan Three [Member]
Long-term Debt, Total	$ 158,168	$ 152,543