XML 23 R25.htm IDEA: XBRL DOCUMENT v2.4.0.6

Fair Value Measurements (Tables)

6 Months Ended

Sep. 30, 2012

Fair Value Measurements [Abstract]

Schedule Of Assets Carried At Fair Value

		Total		Quoted Prices in		Significant Other		Significant
		Carrying		Active Markets		Observable Inputs		Unobservable Inputs
		Value		(Level 1)		(Level 2)		(Level 3)
September  30, 2012:
Assets:
Cash equivalents	$	30,400	$	30,400	$	-	$	-
Short-term commercial paper		5,220		-		5,220		-
Liabilities:
Derivative liability	$	2,763	$	-	$	-	$	2,763
Warrants		7,517		-		-		7,517
		Total		Quoted Prices in		Significant Other		Significant
		Carrying		Active Markets		Observable Inputs		Unobservable Inputs
		Value		(Level 1)		(Level 2)		(Level 3)
March 31, 2012:
Assets:
Cash equivalents	$	23,485	$	23,485	$	-	$	-
Short-term commercial paper		5,304		-		5,304		-

Schedule Of The Major Classes Of Liabilities Measured At Fair Value

		Derivative
		Liability			Warrants
April  1, 2012	$	-		$	-
Valuation of derivative liability		3,779			-
Warrant issuance with Senior Convertible Notes		-			7,018
Warrant issuance with Senior Secured Term Loan		-			380
Mark to market adjustment		(1,016)			119
Balance at September 30, 2012	$	2,763		$	7,517

X

- Definition

Schedule of liabilities measured at fair value.

+ References

No definition available.

+ Details

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

X

- Definition

Tabular disclosure of the amount of gains or losses for the period included in earnings or resulted in a change to net assets, have arisen from the use of significant unobservable inputs (level 3) to measure the fair value of assets, liabilities, and financial instruments classified in shareholders' equity.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 157

-Paragraph 32

-Subparagraph d

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 157

-Paragraph 32

-Subparagraph c(1)

-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 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1),(d)

-URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258

+ Details

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

X

- Details

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