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Income Taxes - Reconciliation of the 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 Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract] |  |  |
Provision (benefit) for income taxes at federal rate | $ 1,170 | $ 118 | $ (2,355)
State taxes | 156 | 92 | (96)
Charges not deductible for income tax purposes | 54 | 26 | 147
Stock based compensation | (8) | 114 | 0
Research and development tax credits | (327) | (240) | (295)
Valuation allowance | (35) | (42) | (7)
Effect of foreign tax rate | 26 | 27 | 31
Nondeductible fringe benefits | 30 | 44 | 0
162(m) | 105 | 0 | 0
Foreign withholding tax | 0 | 0 | 138
Foreign-derived intangible income deduction | (134) | 0 | (2)
Global intangible low-taxed income | (20) | 55 | 0
Other | 1 | 0 | (4)
Total provision (benefit) for income taxes | $ 1,018 | $ 194 | $ (2,443)

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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-12 + Details
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible expenses. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-12 + Details
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