XML 51 R28.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Valuation and Qualifying Accounts | 12 Months Ended
--- | ---
Mar. 31, 2015
Valuation And Qualifying Accounts [Abstract] |
Valuation and Qualifying Accounts | American Superconductor Corporation Schedule II — Valuation and Qualifying Accounts (In thousands)
| Balance, |  |  |  |  |  |  |  | Recoveries |  | Balance, |
| Beginning of |  |  |  |  |  |  |  | and Other |  | End of |
| Year |  | Additions |  | Write-offs |  | Adjustments |  | Year |
Allowance for doubtful accounts receivable: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fiscal year ended March 31, 2015 | $ | 16 |  |  | 54 |  |  | (16 | ) |  | - |  | $ | 54 |
Fiscal year ended March 31, 2014 | $ | - |  |  | 16 |  |  | - |  |  | - |  | $ | 16 |
Fiscal year ended March 31, 2013 | $ | 52 |  |  | - |  |  | (52 | ) |  | - |  | $ | - |
| Balance, |  |  |  |  |  |  |  | Recoveries |  | Balance, |
| Beginning of |  |  |  |  |  |  |  | and Other |  | End of |
| Year |  | Additions |  | Write-offs |  | Adjustments |  | Year |
Deferred tax asset valuation allowance: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fiscal year ended March 31, 2015 | $ | 282,824 |  |  | 15,189 |  |  | (3,153 | ) | - |  | $ | 294,860 |
Fiscal year ended March 31, 2014 | $ | 261,961 |  |  | 26,649 |  |  | (5,786 | ) | - |  | $ | 282,824 |
Fiscal year ended March 31, 2013 | $ | 252,302 |  |  | 21,333 |  |  | (11,674 | ) | - |  | $ | 261,961 |

X
- Definition The entire disclosure for any allowance and reserve accounts (their beginning and ending balances, as well as a reconciliation by type of activity during the period). Alternatively, disclosure of the required information may be within the footnotes to the financial statements or a supplemental schedule to the financial statements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 09 -Article 12 + Details
Name: | us-gaap_ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_ValuationAndQualifyingAccountsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration