Condensed Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Revenue:
License and development support revenue (including related party amounts of $0 and $251, respectively)		$ 251
Operating Expenses [Abstract]
Research and development (including related party amounts of $23 and $288, respectively)	$ 17,052	11,156
General and administrative	5,119	3,587
Total operating expenses	22,171	14,743
Loss from operations	(22,171)	(14,492)
Other income, net:
Interest income	1,864	650
Change in fair value of SAFEs (including related party amounts of $0 and $(217), respectively)		(268)
Other income (expense)	(4)	147
Total other income, net	1,860	529
Net loss	$ (20,311)	$ (13,963)
Net loss per share - basic	$ (0.83)	$ (17.24)
Net loss per share - diluted	$ (0.83)	$ (17.24)
Weighted average common shares outstanding - basic	24,341,978	809,758
Weighted average common shares outstanding - diluted	24,341,978	809,758
Other comprehensive income (loss):
Unrealized gain (loss) on investments, net	$ 129	$ (101)
Comprehensive loss	$ (20,182)	$ (14,064)