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Accrued Liabilities (Tables)
12 Months Ended
Mar. 31, 2011
Notes to Financial Statements [Abstract]  
Accrued liabilities
Accrued liabilities consist of the following (amounts in thousands):
 

   
March 31,
 
   
2011
  
2010
 
Bankruptcy reorganization liability
 $19,385  $--- 
Other accrued expenses
  112,454   60,211 
   $131,839  $60,211