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INVENTORIES (Tables)
 6 Months Ended
Apr. 30, 2018
Inventory Disclosure [Abstract]  
Schedule of Inventories
Inventories, priced at the lower of cost (first-in, first-out method) or net realizable value, are summarized below (in thousands):
 
 
 
April 30,
 
October 31,
 
 
 
2018
 
2017
 
Purchased parts and sub-assemblies
 
$
41,738
 
$
33,045
 
Work-in-process
 
 
23,103
 
 
20,008
 
Finished goods
 
 
70,009
 
 
66,895
 
 
 
$
134,850
 
$
119,948