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Inventories
12 Months Ended
Apr. 30, 2021
Inventory Disclosure [Abstract]  
Inventories InventoriesInventories consisted of the following at April 30:
(in thousands)
20212020
Finished goods$2,988 $2,455 
Work-in-process1,832 1,921 
Materials and components11,697 10,954 
Total inventories$16,517 $15,330 
At April 30, 2021 and 2020, the Company's international subsidiaries' inventories were $2,560,000 and $2,136,000, respectively, measured using the FIFO method at the lower of cost or net realizable value and are included in the above tables.