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Note 10 - Loan and Credit Agreements - Summary of Term Debt (Details) - USD ($)
Nov. 30, 2019
Nov. 30, 2018
Term debt $ 2,435,993 $ 2,750,477
Less current portion of term debt 85,401 227,459
Term debt, excluding current portion 2,350,592 2,523,018
Term Loan Due October 2037 [Member]    
Term debt 2,435,993 2,517,510
The First National Bank of West Union [Member]    
Term debt $ 232,967