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INCOME TAXES (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
INCOME TAXES [Abstract]        
Gross liability related to uncertain tax positions $ 316   $ 316  
Impact of recognizing the unrecognized tax benefit 429   429  
Interest on income taxes expense included in statement of operation 4 11 9 22
Accrued interest on income taxes $ 189 $ 167 $ 189 $ 167