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Inventories
 3 Months Ended
Jul. 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):
July 31, 2022April 30, 2022
Finished products$3,903 $4,555 
Work in process2,738 2,893 
Raw materials18,459 16,348 
Total$25,100 $23,796 
The Company's International subsidiaries' inventories were $3,799,000 at July 31, 2022 and $2,811,000 at April 30, 2022 and are included in the above tables.