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Inventories
9 Months Ended
Feb. 29, 2012
Inventories [Abstract]  
Inventories

NOTE 3 Inventories

Total inventories consist of the following:

 

                 
    February 29,     May 31,  
    2012     2011  
    (Dollars in thousands)  

Raw materials

  $ 4,971     $ 5,016  

Work in process

    2,772       3,300  

Finished goods

    1,427       404  
   

 

 

   

 

 

 
    $ 9,170     $ 8,720