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INVENTORIES
6 Months Ended
Sep. 30, 2012
INVENTORIES [Abstract]  
INVENTORIES
NOTE 5.  INVENTORIES
 
Inventories include material, labor and overhead, and are stated at the lower of cost (first-in, first-out method) or market.  Components of inventories were as follows (in thousands):

   
September 30,
  
March 31,
 
   
2012
  
2012
 
Raw materials
 $10,035  $9,046 
Work-in-process
  2,868   3,369 
Finished goods
  9,157   7,182 
Inventories
 $22,060  $19,597