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Note 12 - Income Taxes (Details Textual) - USD ($)
 12 Months Ended
Oct. 31, 2023
Oct. 31, 2022
Oct. 31, 2021
Oct. 31, 2009
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent 21.00% 21.00% 21.00%  
Deferred Tax Assets, Gross $ 3,954,920 $ 4,386,184    
Deferred Tax Assets, Operating Loss Carryforwards 2,494,887 3,156,960    
Deferred Tax Assets, Operating Loss Carryforwards, Domestic 10,712,376      
Deferred Tax Assets, Operating Loss Carryforwards, State and Local 1,756,107      
Deferred Tax Assets, Valuation Allowance 3,954,920 4,386,184    
Unrecognized Tax Benefits, Interest on Income Taxes Accrued 1,546 2,448    
Unrecognized Tax Benefits, Income Tax Penalties Accrued 332 0    
Income Tax Examination, Penalties and Interest Accrued 17,268 16,055    
Unrecognized Tax Benefits that Would Impact Effective Tax Rate 20,073 $ 20,630    
AOS Acquisition [Member]        
Deferred Tax Assets, Gross       $ 1,517,605
Deferred Tax Assets, Operating Loss Carryforwards $ 672,000     $ 4,455,525