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INVENTORIES (Details) - USD ($) $ in Thousands | Jul. 28, 2019 | Oct. 31, 2018
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INVENTORIES [Abstract] |  |
Raw materials | $ 38,500 | $ 25,110
Work in process | 1,343 | 3,402
Finished goods | 139 | 668
Inventory | $ 39,982 | $ 29,180

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