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Note 8 - Accounts Receivable (Tables) | 9 Months Ended
--- | ---
Dec. 31, 2022
Notes Tables |
Accounts Receivable [Table Text Block] |
|  | December 31, 2022 |  |  | March 31, 2022 |
Accounts receivable (billed) |  | $ | 13,255 |  |  | $ | 13,788 |
Accounts receivable (unbilled) |  |  | 4,313 |  |  |  | 6,492 |
Accounts receivable, net |  | $ | 17,568 |  |  | $ | 20,280 |

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

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