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Inventories (Tables)
6 Months Ended
Jul. 31, 2021
Inventory Disclosure [Abstract]  
Schedule of Inventory
The following table presents a breakdown of the Company’s inventories as of July 31, 2021, January 31, 2021 and July 31, 2020:
7/31/20211/31/20217/31/2020
(in thousands)
 Finished goods$14,163 $15,606 $23,065 
 Work in process14,061 11,907 15,430 
 Raw materials14,169 10,757 10,949 
Total inventories$42,393 $38,270 $49,444