Income Taxes - Summary of Net Deferred Tax Assets (Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Deferred tax assets:
US and State net operating loss carryforwards	$ 10,195	$ 3,246
Capitalized research and development costs	34,006	19,043
License fees capitalization	958	1,022
Research and development credit carryforwards	10,589	5,065
Accruals and other	1,633	853
Lease liability	2,809	355
Stock-based compensation	1,792	1,049
Other	20	0
Total deferred tax assets	62,002	30,633
Deferred tax liabilities
Depreciation	(121)	(75)
Right-of-Use Asset	(2,424)	(347)
Total deferred tax liabilities	(2,545)	(422)
Valuation Allowance	(59,457)	(30,211)	$ (13,145)
Net deferred tax assets (liabilities)	$ 0	$ 0

Deferred tax assets license fees capitalization.

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Deferred tax liabilities depreciation.

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Deferred tax liabilities right of use asset.

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Amount of deferred tax liability attributable to taxable temporary differences.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from a gain reported for tax purposes on sale and leaseback transactions in accordance with enacted tax laws.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

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Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary difference from in-process research and development cost acquired in business combination or from joint venture formation or both.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible research tax credit carryforwards.

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Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences from compensation and benefits, classified as other.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from share-based compensation.

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Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences from reserves and accruals, classified as other.

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Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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