Note 7 - Leases (Details Textual)	3 Months Ended
	Jan. 31, 2024 USD ($) ft²	Jan. 31, 2023 USD ($)	Oct. 31, 2023 USD ($)
Operating Lease, Expense	$ 109,144	$ 103,333
Operating Lease, Weighted Average Remaining Lease Term (Month)	18 months 18 days
Operating Lease, Weighted Average Discount Rate, Percent	7.40%
Operating Lease, Payments	$ 111,188	109,815
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	0	316,028
Operating Lease, Right-of-Use Asset, Reduction		15,719
Finance Lease, Interest Expense	1,518	1,944
Finance Lease, Right-of-Use Asset, Amortization	$ 7,374	7,374
Lessee, Finance Lease, Remaining Lease Term (Month)	31 months
Lessee, Finance Lease, Discount Rate	4.75%
Finance Lease, Principal Payments	$ 9,199	$ 8,773
Other Assets [Member]
Operating Lease, Right-of-Use Asset	502,998		$ 596,578
Finance Lease, Right-of-Use Asset, after Accumulated Amortization, Total	133,968		141,342
Accounts Payable and Accrued Liabilities [Member]
Operating Lease, Liability, Current	378,805		414,159
Other Noncurrent Liabilities [Member]
Operating Lease, Liability, Noncurrent	163,099		227,925
Finance Lease, Liability, Noncurrent	83,806		93,451
Accounts Payable and Accrued Liabilities, Current [Member]
Finance Lease, Liability, Current	$ 37,905		$ 37,459
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
Lessee, Operating Lease, Term of Contract	3 years
Operating Lease For Office Equipment [Member]
Lessee, Operating Lease, Term of Contract	60 months