XML 82 R69.htm IDEA: XBRL DOCUMENT
v3.23.1

Note 9 - Prepaid and Other Current Assets (Details Textual) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2021 | Mar. 31, 2021 | Mar. 31, 2020 | Mar. 31, 2023
Employee Retention Credits Receivable |  |  |  | $ 3.3
Cost of Sales [Member] |  |  |  |
Employee Retention Credits Benefit |  |  |  | 1.8
Selling, General and Administrative Expenses [Member] |  |  |  |
Employee Retention Credits Benefit |  |  |  | 0.8
Research and Development Expense [Member] |  |  |  |
Employee Retention Credits Benefit |  |  |  | 0.7
Prepaid Expenses and Other Current Assets [Member] |  |  |  |
Employee Retention Credits Receivable |  |  |  | $ 3.3
Maximum [Member] |  |  |  |
Percentage of Qualified Wages Paid | 70.00% | 70.00% | 50.00% |

X
- Definition Represents employee retention credits benefit. + References No definition available. + Details
Name: | amsc_EmployeeRetentionCreditsBenefit
Namespace Prefix: | amsc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Represents employee retention credits receivable. + References No definition available. + Details
Name: | amsc_EmployeeRetentionCreditsReceivable
Namespace Prefix: | amsc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Represents percentage of qualified wages paid. + References No definition available. + Details
Name: | amsc_PercentageOfQualifiedWagesPaid
Namespace Prefix: | amsc_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=us-gaap_CostOfSalesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=us-gaap_SellingGeneralAndAdministrativeExpensesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=us-gaap_ResearchAndDevelopmentExpenseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |