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Inventories, Net (Details) - USD ($)
$ in Thousands
Jul. 31, 2020
Oct. 31, 2019
Inventory Disclosure [Abstract]    
Raw Materials $ 22,512 $ 26,653
Work-in-process 20,558 21,369
Finished goods 18,860 19,470
Inventory Valuation Reserves (7,647) (3,945)
Total inventories, net $ 54,283 $ 63,547