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Component: (Network and Table)
Network
30903 - Disclosure - Accounts Payable And Accrued Expenses (Tables)
(http://www.amsc.com/role/DisclosureAccountsPayableAndAccruedExpensesTables)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0000880807 (http://www.sec.gov/CIK)
Accounts Payable And Accrued Expenses [Abstract]Period [Axis]
2011-04-01 - 2012-03-31
Accounts Payable And Accrued Expenses [Abstract]
 
Schedule Of Accounts Payable And Accrued Expenses
    March 31,
    2012   2011
Accounts payable $ 8,191 $ 40,074
Accrued inventories in-transit   3,330   6,196
Accrued miscellaneous expenses   9,708   14,785
Accrued subcontractor program costs   1,885   1,190
Accrued compensation   8,380   8,174
Income taxes payable   192   11,947
Accrued warranty   5,896   7,907
Total $ 37,582 $ 90,273
  
Summary Of Accrued Warranty Activity
    For the years  
    ended March 31,  
    2012     2011  
Beginning balance $ 7,907   $ 6,431  
Accruals for warranties during the period   (906 )   4,994  
Settlements during the period   (1,105 )   (3,518 )
Ending balance $ 5,896   $ 7,907