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Inventories - Components of Inventories (Detail) - USD ($) $ in Thousands | Nov. 02, 2019 | Jan. 31, 2019
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Inventory Disclosure [Abstract] |  |
Materials and Supplies | $ 21,116 | $ 17,517
Work-In-Process | 1,586 | 1,633
Finished Goods | 18,170 | 15,688
Inventory, Gross | 40,872 | 34,838
Inventory Reserve | (5,278) | (4,677)
Inventories | $ 35,594 | $ 30,161

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