Note 7 - Leases (Details Textual)	3 Months Ended
	Jan. 31, 2023 USD ($) ft²	Jan. 31, 2022 USD ($)	Oct. 31, 2022 USD ($)
Operating Lease, Expense	$ 103,333	$ 103,333
Operating Lease, Weighted Average Remaining Lease Term (Month)	29 months
Operating Lease, Weighted Average Discount Rate, Percent	7.00%
Operating Lease, Payments	$ 109,815	107,284
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	316,028	0
Operating Lease, Right-of-Use Asset, Reduction	15,719
Finance Lease, Interest Expense	1,944	2,350
Finance Lease, Right-of-Use Asset, Amortization	$ 7,374	7,374
Lessee, Finance Lease, Remaining Lease Term (Month)	43 months
Lessee, Finance Lease, Discount Rate	4.75%
Finance Lease, Principal Payments	$ 8,773	$ 8,366
Other Assets [Member]
Operating Lease, Right-of-Use Asset	867,974		$ 662,328
Finance Lease, Right-of-Use Asset, after Accumulated Amortization, Total	163,465		170,839
Accounts Payable and Accrued Liabilities [Member]
Operating Lease, Liability, Current	387,013		355,183
Other Noncurrent Liabilities [Member]
Operating Lease, Liability, Noncurrent	541,904		374,570
Finance Lease, Liability, Noncurrent	121,711		130,911
Accounts Payable and Accrued Liabilities, Current [Member]
Finance Lease, Liability, Current	$ 36,150		$ 35,724
Operating Lease for Office, Manufacturing and Warehouse Space in Plano, Texas [Member]
Area of Real Estate Property (Square Foot) | ft²	34,000
Operating Lease for Warehouse Space in Roanoke, Virginia [Member]
Area of Real Estate Property (Square Foot) | ft²	36,000
Operating Lease For Office Equipment [Member]
Lessee, Operating Lease, Term of Contract (Month)	60 months