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Note 4 - Property and Equipment, Net (Tables)
12 Months Ended
Oct. 31, 2016
Notes Tables  
Property, Plant and Equipment [Table Text Block]
 
 
October 31,
 
 
 
2016
 
 
2015
 
Land
  $
3,144,068
    $
3,144,068
 
Building and improvements
   
8,140,933
     
8,127,015
 
Machinery and equipment
   
25,769,804
     
25,081,678
 
Furniture and fixtures
   
903,067
     
909,715
 
Construction in progress
   
1,588,815
     
1,292,235
 
Total property and equipment, at cost
   
39,546,687
     
38,554,711
 
Less accumulated amortization and depreciation
   
(26,147,529
)    
(24,650,792
)
Property and equipment, net
  $
13,399,158
    $
13,903,919