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Note 13 - Income Taxes (Details Textual) - USD ($)
 12 Months Ended
Oct. 31, 2025
Oct. 31, 2024
Oct. 31, 2009
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent 21.00% 21.00%  
Deferred Tax Assets, Gross $ 5,211,336 $ 4,865,610  
Deferred Tax Assets, Operating Loss Carryforwards 3,013,309 3,025,852  
Deferred Tax Assets, Operating Loss Carryforwards, Domestic 12,956,541    
Deferred Tax Assets, Operating Loss Carryforwards, State and Local 2,606,375    
Deferred Tax Assets, Valuation Allowance 5,211,336 4,865,610  
Unrecognized Tax Benefits, Interest on Income Taxes Accrued 3,805 1,746  
Unrecognized Tax Benefits, Income Tax Penalties Accrued 2,131 204  
Income Tax Examination, Penalties and Interest Accrued 17,544 19,218  
Unrecognized Tax Benefits that Would Impact Effective Tax Rate 27,068 $ 19,535  
AOS Acquisition [Member]      
Deferred Tax Assets, Gross     $ 1,517,605
Deferred Tax Assets, Operating Loss Carryforwards $ 672,000   $ 4,455,525