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Accounts Receivable (Tables)
9 Months Ended
Dec. 31, 2011
Accounts Receivable [Abstract]  
Schedule Of Accounts Receivable
    December 31,     March 31,  
    2011     2011  
Accounts receivable (billed) $ 11,708   $ 10,938  
Accounts receivable (unbilled)   3,308     5,004  
Less: Allowance for doubtful accounts   (252 )   (683 )
Accounts receivable, net $ 14,764   $ 15,259