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Inventories
9 Months Ended
Jul. 31, 2018
Inventory Disclosure [Abstract]  
Inventory Disclosure [Text Block]
Inventories
Inventories consist of the following:
 
July 31, 2018
 
October 31, 2017
Raw materials
$
29,074

 
$
23,389

Work-in-process
22,823

 
18,653

Finished goods
23,218

 
19,770

Total inventory
$
75,115

 
$
61,812



Total cost of inventory is net of reserves to reduce certain inventory from cost to net realizable value by an allowance for excess and obsolete inventories based on management’s review of on-hand inventories compared to historical and estimated future sales and usage. Such reserves aggregated $5,079 and $5,535 at July 31, 2018 and October 31, 2017, respectively.