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Note 7 - Leases (Details Textual)
 2 Months Ended 3 Months Ended
Jan. 01, 2024
USD ($)
Jan. 31, 2025
USD ($)
ft²
Jan. 31, 2024
USD ($)
Oct. 31, 2024
USD ($)
Operating Lease, Right-of-Use Asset   $ 2,009,125   $ 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   $ 415,740   $ 376,965
Operating Lease, Liability, Noncurrent   $ 1,641,997   $ 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   $ 155,393 $ 109,144  
Operating Lease, Weighted Average Remaining Lease Term   54 months 27 days    
Operating Lease, Weighted Average Discount Rate, Percent   9.40%    
Operating Lease, Payments   $ 137,517 111,188  
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability   266,141 0  
Operating Lease, Right-of-Use Asset, Reduction   21,344    
Finance Lease, Right-of-Use Asset, after Accumulated Amortization   $ 104,470   $ 111,844
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]   Other assets, net   Other assets, net
Finance Lease, Liability, Current   $ 39,745   $ 39,277
Finance Lease, Liability, Noncurrent   $ 44,061   $ 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   $ 1,072 1,518  
Finance Lease, Right-of-Use Asset, Amortization $ 7,374 $ 7,374    
Lessee, Finance Lease, Remaining Lease Term (Month)   19 months    
Lessee, Finance Lease, Discount Rate   4.75%    
Finance Lease, Principal Payments   $ 9,645 $ 9,199  
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