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Note 6 - Long-term Debt and Notes Payable - Long-term Debt (Details) - USD ($)
Apr. 30, 2022
Oct. 31, 2021
Long-term debt $ 4,692,402 $ 4,853,451
Less current installments 331,381 324,840
Long-term debt, excluding current installments 4,361,021 4,528,611
Virginia Real Estate Loan [Member]    
Long-term debt 3,785,133 3,899,076
North Carolina Real Estate Loan [Member]    
Long-term debt $ 907,269 $ 954,375