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Note 5 - Intangible Assets (Details Textual) - USD ($)
 12 Months Ended
Oct. 31, 2017
Oct. 31, 2016
Oct. 31, 2015
Amortization of Intangible Assets $ 25,704 $ 16,903 $ 10,860
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months 26,000    
Finite-Lived Intangible Assets, Gross 487,289    
Finite-Lived Intangible Assets, Accumulated Amortization 62,027    
Finite-Lived Intangible Assets, Amortization Expense, Year Two 26,000    
Finite-Lived Intangible Assets, Amortization Expense, Year Three 26,000    
Finite-Lived Intangible Assets, Amortization Expense, Year Four 26,000    
Finite-Lived Intangible Assets, Amortization Expense, Year Five $ 26,000