STATEMENTS OF CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS' DEFICIT - USD ($) $ in Thousands	Total	Convertible Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Additional Paid-in Capital [Member] Adoption of ASU 2020-06	Accumulated Other Comprehensive Income [Member]	Accumulated Deficit [Member]	Accumulated Deficit [Member] Adoption of ASU 2020-06
Convertible Preferred Stock, beginning balance at Dec. 31, 2022		$ 183,034
Convertible Preferred Stock, beginning balance (in shares) at Dec. 31, 2022		6,730,821
Beginning balance at Dec. 31, 2022	$ (170,034)		$ 1	$ 15,530			$ (185,565)
Beginning balance (in shares) at Dec. 31, 2022			5,028,148
Issuance of preferred stock, net of issuance costs and warrant liabilities		$ 78,679
Issuance of preferred stock, net of issuance costs and warrant liabilities (in shares)		6,145,740
Common B warrant exercises	5,223			5,223
Common B warrant exercises (in shares)			991,957
Stock option exercises	10			10
Stock option exercises (in shares)			1,222
Stock-based compensation expense	5,658			5,658
Unrealized gain (loss) on short-term investments	137					$ 137
Net Income (Loss)	(44,099)						(44,099)
Convertible Preferred Stock, ending balance at Dec. 31, 2023	$ 261,713	$ 261,713
Convertible Preferred Stock, ending balance (in shares) at Dec. 31, 2023	12,876,561	12,876,561
Ending balance at Dec. 31, 2023	$ (203,105)		$ 1	26,421	$ 12,317	137	(229,664)	$ (12,317)
Ending balance (in shares) at Dec. 31, 2023			6,021,327
Accounting Standards Update [Extensible Enumeration]	ASU 2020-06
Issuance of preferred stock, net of issuance costs and warrant liabilities		$ 59,660
Issuance of preferred stock, net of issuance costs and warrant liabilities (in shares)		4,352,393
Common B warrant exercises	$ 6,100			6,100
Common B warrant exercises (in shares)			634,513
Stock option exercises	$ 89			89
Stock option exercises (in shares)	11,953		11,953
Stock-based compensation expense	$ 6,384			6,384
Unrealized gain (loss) on short-term investments	(72)					(72)
Net Income (Loss)	(54,756)						(54,756)
Convertible Preferred Stock, ending balance at Dec. 31, 2024	$ 321,373	$ 321,373
Convertible Preferred Stock, ending balance (in shares) at Dec. 31, 2024	17,228,954	17,228,954
Ending balance at Dec. 31, 2024	$ (245,360)		$ 1	$ 51,311		$ 65	$ (296,737)
Ending balance (in shares) at Dec. 31, 2024			6,667,793