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v3.24.2.u1

Note 2 - Revenue Recognition 1 (Details Textual) | 3 Months Ended
--- | ---
Jun. 30, 2024 | Jun. 30, 2023
Revenue, Performance Obligation Satisfied, Revenue Recognized, Percentage | 88.00% | 76.00%
Minimum [Member] |  |
Warranty Period (Year) | 1 year |
Contract with Customer, Payment Term (Day) | 30 days |
Maximum [Member] |  |
Warranty Period (Year) | 3 years |
Extended Service Warranty, Term (Year) | 4 years |
Contract with Customer, Payment Term (Day) | 60 days |

X
- Definition Represents the payment term, from the date of delivery, under contracts with customers. + References No definition available. + Details
Name: | amsc_ContractWithCustomerPaymentTerm
Namespace Prefix: | amsc_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the additional term of extended service-type warranties. + References No definition available. + Details
Name: | amsc_ExtendedServiceWarrantyTerm
Namespace Prefix: | amsc_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the percentage of revenue recognized at the point of time when control transferred to the customer. + References No definition available. + Details
Name: | amsc_RevenuePerformanceObligationSatisfiedRevenueRecognizedPercentage
Namespace Prefix: | amsc_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the typical term of assurance-type warranties on all product sales. + References No definition available. + Details
Name: | amsc_WarrantyPeriod
Namespace Prefix: | amsc_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
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: |