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Business Segment Information - Summary of Operating Segment Costs and Expenses (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2024 | Dec. 31, 2023
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Research and development expenses | $ 1,780 | $ 1,434 | $ 4,166 | $ 4,435
Selling, general, and administrative expenses | 1,710 | 2,251 | 5,384 | 7,635
Total costs and expenses | 3,492 | 3,685 | 9,555 | 12,070
Operating Segments [Member] |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Total segment costs and expenses | 1,825 | 1,434 | 4,349 | 4,435
Other selling, general, and administrative expenses | 1,667 | 2,251 | 5,206 | 7,635
Total costs and expenses | 3,492 | 3,685 | 9,555 | 12,070
Operating Segments [Member] | R&D [Member] |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Research and development expenses | 899 | 1,434 | 3,010 | 4,435
Operating Segments [Member] | Mosaic [Member] |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Research and development expenses | 881 | 0 | 1,156 | 0
Cost of revenues | 2 | 0 | 5 | 0
Selling, general, and administrative expenses | $ 43 | $ 0 | $ 178 | $ 0

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