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Inventories and major vendors (Tables)
9 Months Ended
Jul. 31, 2018
Inventory Disclosure [Abstract]  
Components of Inventories
Inventories consist of the following (in thousands): 
 
 
 
July 31, 2018
 
 
October 31, 2017
 
 
 
 
 
 
 
 
Raw materials and supplies
 
$
2,867
 
 
$
2,520
 
Work in process
 
 
389
 
 
 
194
 
Finished goods
 
 
3,598
 
 
 
3,395
 
 
 
 
 
 
 
 
 
 
Totals
 
$
6,854
 
 
$
6,109