Unaudited Condensed Consolidated Statements of Redeemable Convertible Preferred Stock and Stockholders' Equity (Deficit) - USD ($) $ in Thousands	Total	Common stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income	Accumulated Deficit	Redeemable Convertible Preferred Stock
Temporary equity beginning balance at Dec. 31, 2023						$ 132,722
Temporary equity beginning balance, shares at Dec. 31, 2023						31,465,128
Beginning balance at Dec. 31, 2023	$ (173,396)		$ 8,142	$ 164	$ (181,702)
Beginning balance, shares at Dec. 31, 2023		1,673,314
Series D redeemable convertible preferred stock, Value						$ 169,458
Series D redeemable convertible preferred stock, Shares						49,713,402
Conversion of convertible promissory notes into Series D-1 redeemable convertible preferred stock, Value						$ 40,651
Conversion of convertible promissory notes into Series D-1 redeemable convertible preferred stock, Share						11,887,535
Issuance of common stock upon exercise of options	3		3
Issuance of common stock upon exercise of options, shares		280
Stock-based compensation expense	852		852
Foreign currency translation adjustment	21			21
Net Income (Loss)	(12,992)				(12,992)
Temporary equity Ending balance at Mar. 31, 2024						$ 342,831
Temporary equity Ending balance, shares at Mar. 31, 2024						93,066,065
Ending balance at Mar. 31, 2024	(185,512)		8,997	185	(194,694)
Ending balance, shares at Mar. 31, 2024		1,673,594
Beginning balance at Dec. 31, 2024	$ 323,127		575,693	245	(252,811)
Beginning balance, shares at Dec. 31, 2024	35,850,037	35,850,037
Stock-based compensation expense	$ 2,949		2,949
Unrealized gain (loss) on marketable securities	29			29
Foreign currency translation adjustment	(10)			(10)
Net Income (Loss)	(12,928)				(12,928)
Ending balance at Mar. 31, 2025	$ 313,167		$ 578,642	$ 264	$ (265,739)
Ending balance, shares at Mar. 31, 2025	35,850,037	35,850,037