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Debt - Convertible Debt (Details) - Convertible Notes [Member] - USD ($) | Sep. 30, 2025 | Mar. 31, 2025 | Mar. 31, 2023
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Debt - Convertible Debt (Details) [Line Items] |  |  |
Principal amount of Convertible Notes | $ 38,730,000 | $ 35,209,000 | $ 32,000,000
Less: unamortized debt discount attributed to Compound Net Derivative Liability | (5,972,000) | (6,556,000) |
Less: unamortized debt discount attributed to debt issuance costs | (834,000) | (916,000) |
Carrying amount of the Convertible Notes | 31,924,000 | 27,737,000 |
Plus: Compound Net Derivative Liability | 11,520,000 | 7,470,000 |
Net carrying amount of Convertible Notes, related party | $ 43,444,000 | $ 35,207,000 |

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