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Income Taxes - Summary of Reconciliation of Statutory Federal Rate and Effective Rate for Operations (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Mar. 31, 2023 | Mar. 31, 2022
Income Tax Disclosure [Abstract] |  |
Tax computed at federal statutory rate | $ (3,624) | $ (2,404)
State income tax, net of federal benefit | (44) | (6)
Stock-based compensation | 167 | 1,857
Research credits | 60 | (249)
Change in tax rate | 157 | 454
Removal of net operating losses and research development credits | 1,410 | 2,269
Other | 1 | 20
Valuation allowance | 1,873 | (1,941)
Provision (benefit) for income taxes | $ 0 | $ 0
Tax computed at federal statutory rate | 21.00% | 21.00%
State income tax, net of federal benefit | 0.20% | 0.00%
Stock-based compensation | (1.00%) | (16.20%)
Research credits | (0.40%) | 2.10%
Change in tax rate | (0.90%) | (4.00%)
Removal of net operating losses and research development credits | (8.20%) | (19.80%)
Other | 0.00% | (0.10%)
Valuation allowance | (10.70%) | 16.90%
Provision (benefit) for income taxes | 0.00% | 0.00%

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