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Segment Reporting - Schedule of Significant Segment Expenses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Segment Reporting [Abstract]
Personnel related costs	$ 13,544	$ 23,936
Research and development expenses	6,795	14,346
Clinical trial expenses	4,325	11,285
General and administrative expenses	7,062	8,952
Facilities expenses	6,529	7,734
Stock-based compensation expense	2,782	7,407
Depreciation and other segment expenses (Note A)	1,291	2,266
Total segment expenses	42,328	75,926
Restructuring charges	1,480	3,343
Impairment charges	0	1,469
Total segment and operating expenses	$ 43,808	$ 80,738

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Clinical trial expenses.

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Facilities expenses

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Segment and operating expenses.

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Segment general and administrative expenses.

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Segment research and development expenses.

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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