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Short-term investments | 12 Months Ended
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Mar. 31, 2026
Short-Term Investments [Abstract] |
Short-term investments | Short-term investments As of March 31, 2026 and 2025, the Company's available-for-sale investments by type, consisted of the following:
| March 31, 2026
| Amortized cost |  | Gross unrealized gains |  | Gross unrealized losses |  | Credit Losses |  | Fair value
US Government agency bonds | $ | 3,985 |  |  | $ | — |  |  | $ | (1) |  |  | $ | — |  |  | $ | 3,984 |
US Treasury bonds | 55,872 |  |  | 9 |  |  | $ | — |  |  | $ | — |  |  | 55,881 |
| $ | 59,857 |  |  | $ | 9 |  |  | $ | (1) |  |  | $ | — |  |  | $ | 59,865 |
| March 31, 2025
| Amortized cost |  | Gross unrealized gains |  | Gross unrealized losses |  | Credit Losses |  | Fair value
US Government agency bonds | $ | 84,807 |  |  | $ | 15 |  |  | $ | (18) |  |  | $ | — |  |  | $ | 84,804 |
US Treasury bonds | 287,570 |  |  | 334 |  |  | (23) |  |  | — |  |  | 287,881 |
| $ | 372,377 |  |  | $ | 349 |  |  | $ | (41) |  |  | $ | — |  |  | $ | 372,685 |
As of March 31, 2026 and 2025, available-for-sale securities consisted of investments that mature within one year.

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- Definition The entire disclosure for investment. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/320/tableOfContent Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Topic 321 -Publisher FASB -URI https://asc.fasb.org/321/tableOfContent Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Topic 325 -Publisher FASB -URI https://asc.fasb.org/325/tableOfContent + Details
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- References No definition available. + Details
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