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Inventories (Tables)
3 Months Ended
Apr. 30, 2022
Inventory Disclosure [Abstract]  
Schedule of inventories
Inventories consist of the following (in thousands):
 Apr 30, 2022Jan 29, 2022
Raw materials$1,951 $1,228 
Work in progress
Finished goods481,973 461,064 
 $483,927 $462,295