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Inventories and major vendors (Tables)
12 Months Ended
Oct. 31, 2018
Inventory Disclosure [Abstract]  
Components of Inventories
Inventories consist of the following (in thousands): 
 
 
2018
 
 
2017
 
 
 
 
 
 
 
 
Raw materials and supplies
 
$
2,711
 
 
$
1,956
 
Work in process
 
 
603
 
 
 
192
 
Finished goods
 
 
3,799
 
 
 
3,395
 
 
 
 
 
 
 
 
 
 
Totals
 
$
7,113
 
 
$
5,543