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Restructuring Charges (Tables)
9 Months Ended
Dec. 31, 2011
Restructuring Charges [Abstract]  
Schedule Of Restructuring Liability
     Employee
Severance
 

Balance at March 31, 2011

   $ 0   

Restructuring charges to operations

     372   

Cash payments

     0   
  

 

 

 

Balance at December 31, 2011

   $ 372