Income Taxes - Components of Income Before Provision for Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2024
Income Taxes [Line Items]
Income before provision for income taxes	$ 14,760	$ 15,407	$ 5,574
U.S. [Member]
Income Taxes [Line Items]
Income before provision for income taxes	15,038	14,381	5,077
Asia [Member]
Income Taxes [Line Items]
Income before provision for income taxes	$ (278)	$ 1,026	$ 497

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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+ Details