Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Income Statement [Abstract]
Revenues	$ 0	$ 0	$ 0	$ 0
Operating expenses:
Research and development	23,769	13,917	47,872	24,925
General and administrative	10,285	9,823	20,255	19,352
Total operating expenses	34,054	23,740	68,127	44,277
Loss from operations	(34,054)	(23,740)	(68,127)	(44,277)
Other income (expense):
Amortization of financing costs	(18)	(32)	(46)	(60)
Interest income, net	11,820	4,547	18,565	5,581
Realized gain on investments, net	2	0	2	0
Total other income, net	11,804	4,515	18,521	5,521
Net loss	(22,250)	(19,225)	(49,606)	(38,756)
Other comprehensive loss, net of tax:
Unrealized gain (loss) on securities	(699)	(417)	(1,824)	84
Foreign currency translation gain (loss)	26	(5)	(59)	(22)
Comprehensive loss	$ (22,923)	$ (19,647)	$ (51,489)	$ (38,694)
Basic net loss per common share	$ (0.2)	$ (0.19)	$ (0.46)	$ (0.44)
Diluted net loss per common share	$ (0.2)	$ (0.19)	$ (0.46)	$ (0.44)
Weighted-average shares used to compute basic net loss per share	110,390,171	99,009,710	106,923,738	88,737,834
Weighted-average shares used to compute diluted net loss per share	110,390,171	99,009,710	106,923,738	88,737,834