Condensed 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
Operating expenses:
Research and development	$ 6,548	$ 8,197	$ 16,504	$ 15,804
General and administrative	3,041	4,253	6,961	8,853
Total operating expenses	9,589	12,450	23,465	24,657
Loss from operations	(9,589)	(12,450)	(23,465)	(24,657)
Other income (expense):
Interest income	457	887	1,049	1,765
Interest expense	(697)	(921)	(1,554)	(1,801)
Other income (expense)	(1)	0	4,999	0
Total other income (expense)	(241)	(34)	4,494	(36)
Net loss	(9,830)	(12,484)	(18,971)	(24,693)
Unrealized gain (loss) on short-term investments	1	(28)	(14)	63
Comprehensive loss	$ (9,829)	$ (12,512)	$ (18,985)	$ (24,630)
Net loss per share of common stock, basic	$ (0.25)	$ (0.32)	$ (0.48)	$ (0.64)
Net loss per share of common stock, diluted	$ (0.25)	$ (0.32)	$ (0.48)	$ (0.64)
Weighted-average shares used to compute basic net loss per share	39,404,975	38,560,376	39,364,469	38,509,887
Weighted-average shares used to compute diluted net loss per share	39,404,975	38,560,376	39,364,469	38,509,887