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6. INVENTORIES (Tables)
6 Months Ended
Nov. 30, 2013
Inventories Tables  
Inventories

Inventories are comprised of the following (in thousands):

 

    November 30,     May 31,  
    2013     2013  
Raw materials and sub-assemblies   $ 2,786     $ 3,180  
Work in process     2,765       2,187  
Finished goods     99       2  
    $ 5,650     $ 5,369