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Network
100560 - Disclosure - Intangible Assets - Schedule of Expected Future Amortization Expense (Detail)
(http://www.amsc.com/20160331/taxonomy/role/DisclosureIntangibleAssetsScheduleOfExpectedFutureAmortizationExpenseDetail)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0000880807 (http://www.sec.gov/CIK)
Goodwill And Intangible Assets Disclosure [Abstract]Period [Axis]
2016-03-31
2015-03-31
Goodwill And Intangible Assets Disclosure [Abstract]
 
 
2017
553,000  
 
2018
301,000  
 
Intangible assets, Net Book Value
854,000  
 
1,422,000