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Income Taxes - Summary of Reconciliation of Statutory Federal Rate and Effective Rate for Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Income Tax Disclosure [Abstract]
Tax computed at federal statutory rate	$ (3,081)	$ (3,624)
State income tax, net of federal benefit	(110)	(44)
Stock-based compensation	721	167
Research credits	0	60
Change in tax rate	(62)	157
Removal of net operating losses and research development credits	1,910	1,410
Uncertain tax positions	111	0
Other	(16)	1
Valuation allowance	527	1,873
Provision (benefit) for income taxes	$ 0	$ 0
Tax computed at federal statutory rate	21.00%	21.00%
State income tax, net of federal benefit	0.70%	0.20%
Stock-based compensation	(4.90%)	(1.00%)
Research credits	0.00%	(0.40%)
Change in tax rate	0.40%	(0.90%)
Removal of net operating losses and research development credits	(13.00%)	(8.20%)
Uncertain tax positions	(0.80%)	0.00%
Other	0.20%	0.00%
Valuation allowance	(3.60%)	(10.70%)
Provision (benefit) for income taxes	0.00%	0.00%

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