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30803 - Disclosure - Goodwill And Other Intangible Assets (Tables)
(http://www.amsc.com/role/DisclosureGoodwillAndOtherIntangibleAssetsTables)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0000880807 (http://www.sec.gov/CIK)
Goodwill And Other Intangible Assets [Abstract]Period [Axis]
2011-04-01 - 2012-03-31
Goodwill And Other Intangible Assets [Abstract]
 
Schedule Of Goodwill
Balance at April 1, 2009 $ 26,233  
Contingent consideration   10,828  
Net foreign exchange rate impact   (365 )
Balance at March 31, 2010   36,696  
Contingent consideration   10,004  
Impairment of goodwill   (48,959 )
Net foreign exchange rate impact   2,259  
Balance at March 31, 2011 $ –  
  
Schedule Of Intangible Assets
        2012             2011        
    Gross   Accumulated     Net Book   Gross   Accumulated     Net Book Estimated
    Amount   Amortization     Value   Amount   Amortization     Value Useful Life
Licenses $ 5,360 $ (2,689 ) $ 2,671 $ 2,908 $ (2,100 ) $ 808 7
Patents   -   -     -   9,038   (4,891 )   4,147 7
Trade names and trademarks   1,212   (909 )   303   1,281   (778 )   503 7
Core technology and know-how   5,611   (4,813 )   798   5,841   (4,245 )   1,596 5- 10
Intangible assets $ 12,183 $ (8,411 ) $ 3,772 $ 19,068 $ (12,014 ) $ 7,054  
  
Schedule Of Expected Future Amortization Expense
For the years ended March 31,   Total
2013 $ 1,007
2014   770
2015   573
2016   568
2017   553
Thereafter   301
Total $ 3,772
  
Schedule Of Geographic Composition Of Goodwill And Intangible Assets
    March 31,
    2012   2011
Intangible assets by geography:        
U.S $ 3,469 $ 5,210
Europe   303   1,844
Total $ 3,772 $ 7,054
  
Schedule Of Business Segment Composition Of Intangible Assets
    March 31,
    2012   2011
Intangible assets by business segments:        
Wind $ 1,119 $ 4,498
Grid   2,653   2,556
Total $ 3,772 $ 7,054