Summary of Significant Accounting Policies - Schedule of Segment Reporting Information, by Segment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Segment Reporting Information [Line Items]
Share-based compensation expense	$ 6,365	$ 1,343
Total operating expenses	58,610	72,429
Loss from operations	(58,610)	(72,429)
Other income	289	93
Interest income	8,553	2,189
Net loss before income taxes	(49,768)	(70,147)
Income tax expense (benefit)	1	(179)
Net loss	(49,769)	(69,968)	[1]
Reportable Segment
Segment Reporting Information [Line Items]
Research and development	27,907	59,061
Selling, general and administrative	24,338	12,025
Share-based compensation expense	6,365	1,343
Total operating expenses	58,610	72,429
Loss from operations	(58,610)	(72,429)
Other income	289	93
Interest income	8,553	2,189
Net loss before income taxes	(49,768)	(70,147)
Income tax expense (benefit)	1	(179)
Net loss	$ (49,769)	$ (69,968)

[1] Retroactively recast for the reverse recapitalization as described in Note 3.