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6. INVENTORIES
6 Months Ended
Nov. 30, 2014
Inventory Disclosure [Abstract]  
6. INVENTORIES

6.  INVENTORIES

 

        Inventories are comprised of the following (in thousands):

 

   November 30,  May 31,
   2014  2014
Raw materials and sub-assemblies  $3,187   $3,348 
Work in process   2,617    2,585 
Finished goods   231    215 
   $6,035   $6,148