Note 6 - Long-term Debt and Notes Payable - Long-term Debt (Details) - USD ($)	Jan. 31, 2023	Oct. 31, 2022
Long-term debt	$ 4,445,712	$ 4,528,602
Less current installments	341,522	338,094
Long-term debt, excluding current installments	4,104,190	4,190,508
Virginia Real Estate Loan [Member]
Long-term debt	3,610,701	3,669,294
North Carolina Real Estate Loan [Member]
Long-term debt	$ 835,011	$ 859,308