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Note 4 - Property and Equipment, Net (Tables)
12 Months Ended
Oct. 31, 2015
Notes Tables  
Property, Plant and Equipment [Table Text Block]
   
October 31,
 
 
 
2015
 
 
2014
 
Land
  $ 3,144,068     $ 3,144,068  
Building and improvements
    8,127,015       8,120,110  
Machinery and equipment
    25,081,678       23,664,060  
Furniture and fixtures
    909,715       957,032  
Construction in progress
    1,292,235       493,876  
Total property and equipment, at cost
    38,554,711       36,379,146  
Less accumulated amortization and depreciation
    (24,650,792 )     (23,265,701 )
Property and equipment, net
  $ 13,903,919     $ 13,113,445