Note 10 - Loan and Credit Agreements - Summary of Term Debt (Details) - USD ($)	May 31, 2021	Nov. 30, 2020
Long-term Debt, Total	$ 2,771,546	$ 2,808,129
Less current portion of term debt	92,470	94,979
Term debt, excluding current portion	2,679,076	2,713,150
Term Loan Due October 2037 [Member]
Long-term Debt, Total	2,305,595	2,350,593
SBA Loan One [Member]
Long-term Debt, Total	155,348	152,543
SBA Loan Two [Member]
Long-term Debt, Total	155,255	152,450
SBA Loan Three [Member]
Long-term Debt, Total	$ 155,348	$ 152,543