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Note 5 - Intangible Assets (Details Textual) - USD ($)
12 Months Ended
Oct. 31, 2022
Oct. 31, 2021
Oct. 31, 2020
Amortization of Intangible Assets $ 51,507 $ 45,511 $ 42,006
Finite-Lived Intangible Asset, Expected Amortization, Year One 52,000    
Finite-Lived Intangible Asset, Expected Amortization, Year Two 52,000    
Finite-Lived Intangible Asset, Expected Amortization, Year Three 52,000    
Finite-Lived Intangible Asset, Expected Amortization, Year Four 52,000    
Finite-Lived Intangible Asset, Expected Amortization, Year Five 52,000    
Finite-Lived Intangible Assets, Gross, Total 856,167 763,718  
Finite-Lived Intangible Assets, Accumulated Amortization $ 274,417 $ 222,910