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6. INVENTORIES (Tables)
9 Months Ended
Feb. 28, 2014
Inventories Tables  
Inventories

Inventories are comprised of the following (in thousands):

 

    February 28,     May 31,  
    2014     2013  
Raw materials and sub-assemblies   $ 2,920     $ 3,180  
Work in process     3,011       2,187  
Finished goods     --       2  
    $ 5,931     $ 5,369