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Inventories
9 Months Ended
Jan. 31, 2022
Inventory Disclosure [Abstract]  
Inventories Inventories
The Company measures inventory using the first-in, first-out ("FIFO") method at the lower of cost or net realizable value. Inventories consisted of the following (in thousands):
January 31, 2022April 30, 2021
Finished products$4,997 $2,988 
Work in process2,837 1,832 
Raw materials12,113 11,697 
Total$19,947 $16,517 
The Company's International subsidiaries' inventories were $2,238,000 at January 31, 2022 and $2,560,000 at April 30, 2021 and are included in the above tables.