Note 10 - Loan and Credit Agreements - Summary of Term Debt (Details) - USD ($)	Aug. 31, 2021	Nov. 30, 2020
Long-term Debt, Total	$ 2,753,405	$ 2,808,129
Less current portion of term debt	96,222	94,979
Term debt, excluding current portion	2,657,183	2,713,150
Term Loan Due October 2037 [Member]
Long-term Debt, Total	2,283,148	2,350,593
SBA Loan One [Member]
Long-term Debt, Total	156,765	152,543
SBA Loan Two [Member]
Long-term Debt, Total	156,727	152,450
SBA Loan Three [Member]
Long-term Debt, Total	$ 156,765	$ 152,543