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Income Taxes - Components of Income (Loss) Before Provision (Benefit) for Income Taxes (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Mar. 31, 2024 | Mar. 31, 2023 | Mar. 31, 2022
Income Taxes [Line Items] |  |  |
Income (loss) before provision (benefit) for income taxes | $ 5,574 | $ 561 | $ (11,216)
U.S. [Member] |  |  |
Income Taxes [Line Items] |  |  |
Income (loss) before provision (benefit) for income taxes | 5,077 | (66) | (11,954)
Asia [Member] |  |  |
Income Taxes [Line Items] |  |  |
Income (loss) before provision (benefit) for income taxes | $ 497 | $ 627 | $ 738

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