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Summary of Significant Accounting Policies - Summary of Disaggregated Amounts of Operating Expenses (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Summary Of Significant Accounting Policies [Line Items]
Segment research and development	$ (3,851)	$ (3,546)	$ (12,127)	$ (10,647)
Segment general and administrative	(1,767)	(2,190)	(6,609)	(7,385)
Consolidated operating loss	(5,618)	(5,736)	(18,736)	(18,032)
Operating Segments [Member]
Summary Of Significant Accounting Policies [Line Items]
Segment research and development	(3,627)	(3,265)	(11,330)	(9,988)
Segment general and administrative	(1,354)	(1,676)	(5,016)	(6,319)
Stock-based compensation	(626)	(781)	(2,349)	(1,681)
Depreciation expense	(11)	(14)	(41)	(44)
Adjustments and reconciling items	0	0	0	0
Consolidated operating loss	$ (5,618)	$ (5,736)	$ (18,736)	$ (18,032)

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