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Inventories (Tables)
9 Months Ended
Oct. 25, 2020
Inventory Disclosure [Abstract]  
Summary of Inventories
Inventories, consisting of material, material overhead, labor, and manufacturing overhead, are stated at the lower of cost (first-in, first-out) or net realizable value and consisted of the following:
(in thousands)October 25, 2020January 26, 2020
Raw materials$3,054 $2,223 
Work in progress55,439 50,640 
Finished goods19,874 20,147 
Inventories$78,367 $73,010