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Note 6 - Long-term Debt and Notes Payable - Long-term Debt (Details) - USD ($)	Apr. 30, 2021	Oct. 31, 2020
Long-term Loan	$ 4,984,526	$ 5,165,566
Less current installments	292,112	312,109
Long-term debt, excluding current installments	4,692,414	4,853,457
Virginia Real Estate Loan [Member]
Long-term Loan	3,991,745	4,119,850
North Carolina Real Estate Loan [Member]
Long-term Loan	$ 992,781	$ 1,045,716

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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