Note 16 - Commitments and Contingencies (Details Textual) - USD ($) $ in Thousands |
9 Months Ended | |||
|---|---|---|---|---|
May 15, 2026 |
Sep. 30, 2026 |
Sep. 30, 2025 |
Mar. 31, 2026 |
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| Restricted Cash and Cash Equivalent, Noncurrent | $ 4,694 | $ 3,312 | ||
| Restricted Cash and Cash Equivalent, Current | 7,300 | $ 3,500 | ||
| Payments to Acquire Property, Plant, and Equipment | $ 14,365 | $ 2,206 | ||
| AMSC Brazil [Member] | ||||
| Payments to Acquire Property, Plant, and Equipment | $ 37,200 | |||
| X | ||||||||||
- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of cash and cash equivalent restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalent includes, but is not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of cash and cash equivalent restricted as to withdrawal or usage, classified as noncurrent. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalent includes, but is not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Details
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