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Note 8 - Accounts Receivable (Tables) | 6 Months Ended
--- | ---
Sep. 30, 2025
Notes Tables |
Accounts Receivable [Table Text Block] |
|  | September 30, 2025 |  |  | March 31, 2025 |
Accounts receivable (billed) |  | $ | 31,543 |  |  | $ | 39,810 |
Accounts receivable (unbilled) |  |  | 8,327 |  |  |  | 6,376 |
Accounts receivable |  | $ | 39,870 |  |  | $ | 46,186 |

X
- Definition Tabular disclosure of accounts receivable. + References No definition available. + Details
Name: | amsc_AccountsReceivableTableTextBlock
Namespace Prefix: | amsc_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_TableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration