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Income Taxes - Reconciliation of Federal Statutory Income Tax Rate (Detail)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Income Tax Disclosure [Abstract]
Federal statutory income tax rate	21.00%	21.00%
State taxes, net of federal benefit	5.30%	4.90%
Change in state tax rate	(1.30%)	(1.70%)
Federal and state research and development tax credit	14.50%	8.20%
Nondeductible permanent differences	(0.80%)	(1.00%)
Stock compensation forfeitures - DTA Write Off		(1.80%)
Change in deferred tax asset valuation allowance	(38.70%)	(29.60%)
Effective income tax rate	0.00%	0.00%

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- Definition

Percentage 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 a change in the state tax rate.

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Percentage 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 deferred tax asset write-offs from stock compensation forfeitures.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage 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 research tax credit.

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