Note 6 - Long-term Debt and Notes Payable - Long-term Debt (Details) - USD ($)	Apr. 30, 2023	Oct. 31, 2022
Total long-term debt	$ 4,361,006	$ 4,528,602
Less current installments	344,451	338,094
Long-term debt, excluding current installments	4,016,555	4,190,508
Virginia Real Estate Loan [Member]
Total long-term debt	3,550,720	3,669,294
North Carolina Real Estate Loan [Member]
Total long-term debt	$ 810,286	$ 859,308