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Note 5 - Intangible Assets (Details Textual) - USD ($)
 12 Months Ended
Oct. 31, 2018
Oct. 31, 2017
Oct. 31, 2016
Amortization of Intangible Assets, Total $ 34,768 $ 25,704 $ 16,903
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months 38,000    
Finite-Lived Intangible Assets, Gross, Total 596,457 487,289  
Finite-Lived Intangible Assets, Accumulated Amortization 96,795 $ 62,027  
Finite-Lived Intangible Assets, Amortization Expense, Year Two 38,000    
Finite-Lived Intangible Assets, Amortization Expense, Year Three 38,000    
Finite-Lived Intangible Assets, Amortization Expense, Year Four 38,000    
Finite-Lived Intangible Assets, Amortization Expense, Year Five $ 38,000