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Inventories (Tables)
6 Months Ended
Oct. 31, 2023
Inventory Disclosure [Abstract]  
Summary of Inventories Inventories consisted of the following (in thousands):
October 31, 2023April 30, 2023
Finished products$2,897 $3,412 
Work in process1,669 2,380 
Raw materials17,100 16,097 
Total$21,666 $21,889