CONDENSED CONSOLIDATED STATEMENTS OF CONVERTIBLE PREFERRED AND COMMON STOCK AND STOCKHOLDERS' EQUITY (DEFICIT) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2024	Sep. 30, 2023	Jul. 17, 2024	Dec. 31, 2023
Statement of Stockholders' Equity [Abstract]
Common stock, par value (in dollars per share)	$ 0.00001		$ 0.00001				$ 0.00001		$ 0.00001	$ 0.00001
Exercise of stock options	$ 57	$ 3,413
Unrealized gain (loss) on marketable securities	585	(61)	$ (7)	$ 9	$ (14)		$ 517	$ (5)
Vesting of early exercised stock options	19	28	10	19	19	$ 19
Share-based compensation	2,191	1,597	947	494	189	142
Net loss	(10,215)	(10,254)	$ (16,648)	$ (18,880)	$ (14,726)	$ (12,670)	$ (37,117)	$ (46,276)
Adjustments to reverse recapitalization accounting and issuance of common stock from private placement	$ 29	$ 31