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Note 7 - Accounts Receivable | 12 Months Ended
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Mar. 31, 2023
Notes to Financial Statements |
Accounts Receivable [Text Block] | 7. Accounts Receivable Accounts receivable at March 31, 2023 and March 31, 2022 consisted of the following (in thousands):
|  | March 31, 2023 |  |  | March 31, 2022 |
Accounts receivable (billed) |  | $ | 20,707 |  |  | $ | 13,788 |
Accounts receivable (unbilled) |  |  | 9,958 |  |  |  | 6,492 |
Accounts receivable |  | $ | 30,665 |  |  | $ | 20,280 |

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- Definition The entire disclosure for accounts receivable. + References No definition available. + Details
Name: | amsc_AccountsReceivableTextBlock
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_DisclosureTextBlockAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration