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Inventories
9 Months Ended
Feb. 28, 2022
Inventories
3. INVENTORIES
Inventories are stated at the lower of cost, determined by the
first-in,
first-out
method, or net realizable value. The components of inventories follow:
 
    
February 28,
    
May 31,
 
(in thousands)
  
2022
    
2021
 
Raw materials
   $ 54,747      $ 47,588  
Work-in-process
     6,314        6,412  
Finished and purchased goods
     52,334        46,701  
    
 
 
    
 
 
 
     $ 113,395      $ 100,701