Note 9 - Loan and Credit Agreements - Summary of Term Debt (Details) - USD ($)	Nov. 30, 2020	Nov. 30, 2019
Long-term Debt, Total	$ 2,808,129	$ 2,435,993
Less current portion of term debt	94,979	85,401
Term debt, excluding current portion	2,713,150	2,350,592
Term Loan Due October 2037 [Member]
Long-term Debt, Total	2,350,593	2,435,993
SBA Loan One [Member]
Long-term Debt, Total	152,543
SBA Loan Two [Member]
Long-term Debt, Total	152,450
SBA Loan Three [Member]
Long-term Debt, Total	$ 152,543

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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