Condensed Consolidated Statements of Changes In Stockholders' Deficit - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Loss
Beginning Balance (in shares) at Dec. 31, 2022		19,668,603
Beginning Balance at Dec. 31, 2022	$ (15,181)	$ 20	$ 125,406	$ (140,513)	$ (94)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock for employee purchase plan (in shares)		51,786
Issuance of common stock for employee purchase plan	711		711
Exercise of stock options (in shares)		42,234
Exercise of stock options	612		612
Issuance of common stock in settlement of restricted and performance stock units, net of shares withheld for employee taxes (in shares)		186,180
Issuance of common stock in settlement of restricted and performance stock units, net of shares withheld for employee taxes	(3,273)		(3,273)
Stock-based compensation expense	6,552		6,552
Net change in unrealized gain on available-for-sale investments	94				94
Net loss	(105,600)			(105,600)
Ending Balance (in shares) at Sep. 30, 2023		19,948,803
Ending Balance at Sep. 30, 2023	(116,085)	$ 20	130,008	(246,113)	0
Beginning Balance (in shares) at Dec. 31, 2022		19,668,603
Beginning Balance at Dec. 31, 2022	(15,181)	$ 20	125,406	(140,513)	(94)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	$ (162,800)
Ending Balance (in shares) at Dec. 31, 2023	19,960,622	19,960,622
Ending Balance at Dec. 31, 2023	$ (171,830)	$ 20	131,496	(303,346)	0
Beginning Balance (in shares) at Jun. 30, 2023		19,901,600
Beginning Balance at Jun. 30, 2023	(73,801)	$ 20	128,014	(201,839)	4
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock for employee purchase plan (in shares)		0
Issuance of common stock for employee purchase plan	0		0
Exercise of stock options (in shares)		33,000
Exercise of stock options	465		465
Issuance of common stock in settlement of restricted and performance stock units, net of shares withheld for employee taxes (in shares)		14,203
Issuance of common stock in settlement of restricted and performance stock units, net of shares withheld for employee taxes	(87)		(87)
Stock-based compensation expense	1,616		1,616
Net change in unrealized gain on available-for-sale investments	(4)				(4)
Net loss	(44,274)			(44,274)
Ending Balance (in shares) at Sep. 30, 2023		19,948,803
Ending Balance at Sep. 30, 2023	$ (116,085)	$ 20	130,008	(246,113)	0
Beginning Balance (in shares) at Dec. 31, 2023	19,960,622	19,960,622
Beginning Balance at Dec. 31, 2023	$ (171,830)	$ 20	131,496	(303,346)	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options (in shares)	0
Issuance of common stock in settlement of restricted and performance stock units, net of shares withheld for employee taxes (in shares)		217,095
Issuance of common stock in settlement of restricted and performance stock units, net of shares withheld for employee taxes	$ (110)		(110)
Stock-based compensation expense	5,543		5,543
Net change in unrealized gain on available-for-sale investments	0
Net loss	$ (86,477)			(86,477)
Ending Balance (in shares) at Sep. 30, 2024	20,177,717	20,177,717
Ending Balance at Sep. 30, 2024	$ (252,874)	$ 20	136,929	(389,823)	0
Beginning Balance (in shares) at Jun. 30, 2024		20,108,406
Beginning Balance at Jun. 30, 2024	(215,671)	$ 20	135,114	(350,805)	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock in settlement of restricted and performance stock units, net of shares withheld for employee taxes (in shares)		69,311
Issuance of common stock in settlement of restricted and performance stock units, net of shares withheld for employee taxes	(26)		(26)
Stock-based compensation expense	1,841		1,841
Net change in unrealized gain on available-for-sale investments	0
Net loss	$ (39,018)			(39,018)
Ending Balance (in shares) at Sep. 30, 2024	20,177,717	20,177,717
Ending Balance at Sep. 30, 2024	$ (252,874)	$ 20	$ 136,929	$ (389,823)	$ 0