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Inventories
6 Months Ended
Nov. 30, 2016
Inventory Disclosure [Abstract]  
Inventories

NOTE 3 Inventories

Total inventories consist of the following:

 

     November 30, 2016      May 31, 2016  
     (Unaudited)         
     (Dollars in thousands)  

Raw materials

   $ 8,302       $ 7,198   

Work in process

     3,364         3,447   

Finished goods

     290         736   
  

 

 

    

 

 

 
   $ 11,956       $ 11,381