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Note 12 - Income Taxes (Details Textual) - USD ($)
 12 Months Ended
Oct. 31, 2017
Oct. 31, 2016
Oct. 31, 2015
Oct. 31, 2009
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent 34.00% 34.00% 34.00%  
Deferred Tax Assets, Gross $ 3,756,770 $ 3,365,842    
Deferred Tax Assets, Operating Loss Carryforwards 2,099,195 1,958,734    
Deferred Tax Assets, Operating Loss Carryforwards, Domestic 4,203,483      
Deferred Tax Assets, Operating Loss Carryforwards, State and Local 1,462,204      
Deferred Tax Assets, Valuation Allowance 3,622,575 3,060,246    
Unrecognized Tax Benefits, Interest on Income Taxes Accrued 4,633 6,284    
Unrecognized Tax Benefits, Income Tax Penalties Accrued 3,194 250    
Income Tax Examination, Penalties and Interest Accrued 36,761 44,587    
Unrecognized Tax Benefits that Would Impact Effective Tax Rate 36,336 $ 43,191    
AOS Acquisition [Member]        
Deferred Tax Assets, Gross       $ 1,517,605
Deferred Tax Assets, Operating Loss Carryforwards $ 1,680,000     $ 4,455,525