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Inventories and major vendors (Tables)
12 Months Ended
Oct. 31, 2017
Inventory Disclosure [Abstract]  
Components of Inventories
Inventories consist of the following (in thousands):
 
  2017 2016 
        
Raw materials and supplies $2,520 $2,642 
Work in process  194  279 
Finished goods  3,395  3,101 
        
Totals $6,109 $6,022