XML 44 R43.htm IDEA: XBRL DOCUMENT v2.4.0.6

Business Segment And Geographic Information (Tables)

12 Months Ended

Mar. 31, 2013

Business Segment And Geographic Information [Abstract]

Operating Results For Two Business Segments

		For the Years Ended March 31,
		2013		2012		2011
Revenues:
Wind	$	44,231	$	44,642	$	231,761
Grid		43,188		31,901		54,842
Total	$	87,419	$	76,543	$	286,603

	For the Years Ended March 31,
		2013		2012		2011
Operating loss:
Wind	$	(16,098)	$	(62,217)	$	(100,546)
Grid		(23,815)		(29,645)		(63,855)
Unallocated corporate expenses		(17,828)		(44,577)		(13,582)
Total	$	(57,741)	$	(136,439)	$	(177,983)

Total Business Segments Assets

		March 31,			March 31,
		2013			2012
Wind	$	67,111		$	70,054
Grid		72,800			89,091
Corporate assets		76,843			95,911
Total	$	216,754		$	255,056

Geographic Information About Revenue, Based On Shipments To Customers By Region

		For the Years Ended March 31,
		2013		2012		2011
U.S.	$	13,197	$	21,347	$	18,642
Canada		1,663		1,219		6,670
Europe		14,709		2,868		10,289
China		17,906		16,929		219,194
Korea		10,945		12,486		10,281
India		17,062		14,212		3,835
Australia		11,937		7,482		17,692
Total	$	87,419	$	76,543	$	286,603

X

- Definition

Schedule Of Business Segment Assets [Text Block]

+ References

No definition available.

+ Details

Name:	amsc_ScheduleOfBusinessSegmentAssetsTextBlock
Namespace Prefix:	amsc_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Schedule Of Business Segment Operating Results [Text Block]

+ References

No definition available.

+ Details

Name:	amsc_ScheduleOfBusinessSegmentOperatingResultsTextBlock
Namespace Prefix:	amsc_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the names of foreign countries from which revenue is material and the amount of revenue from external customers attributed to those countries. An entity may also provide subtotals of geographic information about groups of countries.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 131

-Paragraph 38

-Subparagraph a

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 280

-SubTopic 10

-Section 50

-Paragraph 41

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9038-108599

+ Details

Name:	us-gaap_ScheduleOfRevenueFromExternalCustomersAttributedToForeignCountriesByGeographicAreaTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_SegmentReportingAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration