Condensed Statements of Redeemable Convertible Preferred Stock and Stockholders' Equity (Deficit) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)	Redeemable Convertible Preferred Stock
Beginning balance at Dec. 31, 2023	$ (131,397)		$ 4,642	$ (136,043)	$ 4
Beginning balance, Shares at Dec. 31, 2023		1,250,103
Temporary equity, Beginning balance at Dec. 31, 2023						$ 180,574
Temporary equity, Beginning balance, Shares at Dec. 31, 2023						114,556,997
Issuance of common stock upon initial public offering, net of underwriting commissions and issuance costs of $30,686	336,164		336,164
Issuance of common stock upon initial public offering, net of underwriting commissions and issuance costs of $30,686 , Shares		16,675,000
Temporary equity, Conversion of redeemable convertible preferred stock into common stock in connection with initial public offering						$ (180,574)
Temporary equity, Conversion of redeemable convertible preferred stock into common stock in connection with initial public offering ,Shares						(114,556,997)
Conversion of redeemable convertible preferred stock into common stock in connection with initial public offering	180,574		180,574
Conversion of redeemable convertible preferred stock into common stock in connection with initial public offering ,Shares		25,171,265
Common shares issued upon exercise of options	64		64
Common shares issued upon exercise of options,Shares		18,876
Stock-based compensation expense	2,278		2,278
Vesting of early exercised options and restricted stock	6		6
Net loss	(26,693)			(26,693)
Unrealized loss on available-for-sale marketable securities, net	(5)				(5)
Ending balance at Mar. 31, 2024	360,991		523,728	(162,736)	(1)
Ending balance, Shares at Mar. 31, 2024		43,115,244
Beginning balance at Dec. 31, 2023	(131,397)		4,642	(136,043)	4
Beginning balance, Shares at Dec. 31, 2023		1,250,103
Temporary equity, Beginning balance at Dec. 31, 2023						$ 180,574
Temporary equity, Beginning balance, Shares at Dec. 31, 2023						114,556,997
Net loss	(55,496)
Unrealized loss on available-for-sale marketable securities, net	(41)
Ending balance at Jun. 30, 2024	333,509		525,085	(191,539)	(37)
Ending balance, Shares at Jun. 30, 2024		43,146,852
Beginning balance at Mar. 31, 2024	360,991		523,728	(162,736)	(1)
Beginning balance, Shares at Mar. 31, 2024		43,115,244
Common shares issued upon exercise of options	73		73
Common shares issued upon exercise of options,Shares		31,608
Stock-based compensation expense	1,284		1,284
Net loss	(28,803)			(28,803)
Unrealized loss on available-for-sale marketable securities, net	(36)				(36)
Ending balance at Jun. 30, 2024	333,509		525,085	(191,539)	(37)
Ending balance, Shares at Jun. 30, 2024		43,146,852
Beginning balance at Dec. 31, 2024	266,587		530,002	(263,520)	105
Beginning balance, Shares at Dec. 31, 2024		43,214,918
Common shares issued upon exercise of options	3		3
Common shares issued upon exercise of options,Shares		3,955
Stock-based compensation expense	2,161		2,161
Net loss	(44,635)			(44,635)
Unrealized loss on available-for-sale marketable securities, net	(106)				(106)
Ending balance at Mar. 31, 2025	224,010		532,166	(308,155)	(1)
Ending balance, Shares at Mar. 31, 2025		43,218,873
Beginning balance at Dec. 31, 2024	$ 266,587		530,002	(263,520)	105
Beginning balance, Shares at Dec. 31, 2024		43,214,918
Common shares issued upon exercise of options,Shares	3,955
Net loss	$ (86,716)
Unrealized loss on available-for-sale marketable securities, net	(125)
Ending balance at Jun. 30, 2025	184,377		534,633	(350,236)	(20)
Ending balance, Shares at Jun. 30, 2025		43,244,930
Beginning balance at Mar. 31, 2025	224,010		532,166	(308,155)	(1)
Beginning balance, Shares at Mar. 31, 2025		43,218,873
Stock-based compensation expense	2,518		2,518
Issuance of common stock upon settlement of restricted stock units, net of shares withheld for taxes	(51)		(51)
Issuance of common stock upon settlement of restricted stock units, net of shares withheld for taxes, Shares		26,057
Net loss	(42,081)			(42,081)
Unrealized loss on available-for-sale marketable securities, net	(19)				(19)
Ending balance at Jun. 30, 2025	$ 184,377		$ 534,633	$ (350,236)	$ (20)
Ending balance, Shares at Jun. 30, 2025		43,244,930