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PROPERTY, EQUIPMENT AND IMPROVEMENTS (Tables)
12 Months Ended
Feb. 28, 2013
PROPERTY, EQUIPMENT AND IMPROVEMENTS [Abstract]  
Schedule of Property, Equipment and Improvements
    February 28,
    2013   2012
Leasehold improvements   $ 1,830     $ 1,725  
Plant equipment and tooling     12,436       11,179  
Office equipment, computers and furniture     4,576       4,319  
      18,842       17,223  
Less accumulated depreciation and amortization     (16,064 )     (15,462 )
    $ 2,778     $ 1,761