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3. INVENTORIES (Tables)
12 Months Ended
May 31, 2014
Inventories Tables  
Inventories

Inventories comprise (in thousands):

 

    May 31,  
    2014     2013  
Raw materials and sub-assemblies   $ 3,348     $ 3,180  
Work in process     2,585       2,187  
Finished goods     215       2  
    $ 6,148     $ 5,369