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Note 1 - Description of Business and Summary of Significant Accounting Policies (Details Textual) - USD ($)
12 Months Ended
Oct. 31, 2015
Oct. 31, 2014
Oct. 31, 2013
Building [Member] | Maximum [Member]      
Property, Plant and Equipment, Useful Life 30 years    
Building [Member] | Minimum [Member]      
Property, Plant and Equipment, Useful Life 39 years    
Maximum [Member]      
Property, Plant and Equipment, Useful Life 7 years    
Minimum [Member]      
Property, Plant and Equipment, Useful Life 3 years    
Cash Equivalents, at Carrying Value $ 0 $ 0  
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage 70.00%    
Cash, Uninsured Amount $ 768,222 567,547  
Shipping, Handling and Transportation Costs 2,000,000 2,200,000 $ 2,200,000
Research and Development Expense 1,300,000 1,400,000 1,400,000
Advertising Expense $ 451,000 $ 522,000 $ 546,000