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Inventories
3 Months Ended
Aug. 31, 2017
Inventories

2. INVENTORIES

Inventories are stated at the lower of cost, determined on the first-in, first-out method, or net realizable value. The components of inventories follow:

 

     August 31,      May 31,  
     2017      2017  
     (in thousands)  

Raw materials

   $ 34,364      $ 33,190  

Work-in-process

     5,185        4,831  

Finished and purchased goods

     33,864        35,123  
  

 

 

    

 

 

 
   $ 73,413      $ 73,144