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Note 8 - Leases (Details Textual)
 12 Months Ended
Oct. 31, 2025
USD ($)
ft²
Oct. 31, 2024
USD ($)
Operating Lease, Right-of-Use Asset $ 1,686,290 $ 1,872,206
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Other assets, net Other assets, net
Operating Lease, Liability, Current $ 392,898 $ 376,965
Operating Lease, Liability, Noncurrent $ 1,358,584 $ 1,525,423
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Accounts payable and accrued expenses Accounts payable and accrued expenses
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Other noncurrent liabilities Other noncurrent liabilities
Operating Lease, Expense $ 615,874 $ 451,197
Operating Lease, Weighted Average Remaining Lease Term 47 months 15 days  
Operating Lease, Weighted Average Discount Rate, Percent 9.45%  
Operating Lease, Payments $ 579,918 448,298
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability 266,141 1,661,150
Operating Lease, Right-of-Use Asset, Reduction 21,344  
Finance Lease, Right-of-Use Asset, after Accumulated Amortization $ 257,986 $ 111,844
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Other assets, net Other assets, net
Finance Lease, Liability, Current $ 87,014 $ 39,277
Finance Lease, Liability, Noncurrent $ 144,957 $ 54,174
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Accounts payable and accrued expenses Accounts payable and accrued expenses
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Other noncurrent liabilities Other noncurrent liabilities
Finance Lease, Interest Expense $ 8,408 $ 5,410
Finance Lease, Right-of-Use Asset, Amortization $ 42,043 29,497
Lessee, Finance Lease, Remaining Lease Term 45 months 9 days  
Lessee, Finance Lease, Discount Rate 7.20%  
Finance Lease, Principal Payments $ 49,665 37,459
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability $ 188,185 $ 0
Operating Lease for Office, Manufacturing and Warehouse Space in Plano, Texas [Member]    
Area of Real Estate Property | ft² 34,000  
Operating Lease for Warehouse Space in Roanoke, Virginia [Member]    
Area of Real Estate Property | ft² 36,000  
Operating Lease For Office Equipment [Member]    
Lessee, Operating Lease, Term of Contract 60 months