Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Operating expenses:
Research and development	$ 40,689	$ 26,909
General and administrative	27,195	18,739
Total operating expenses	67,884	45,648
Loss from operations	(67,884)	(45,648)
Other income (expenses):
Interest income	1,963	54
Interest expense	0	(10)
Other income	342	96
Total other income, net	2,305	140
Loss from continuing operations	(65,579)	(45,508)
Loss on investment in joint venture	1,075	1,505
Net loss	$ (66,654)	$ (47,013)
Net loss per common share,basic	$ (2.09)	$ (1.84)
Net loss per common share,diluted	$ (2.09)	$ (1.84)
Weighted-average common shares outstanding, basic	31,821,311	25,519,114
Weighted-average common shares outstanding,diluted	31,821,311	25,519,114
Other comprehensive loss:
Net unrealized loss on marketable securities	$ 214	$ 0
Other comprehensive loss	(214)	0
Comprehensive loss	$ (66,868)	$ (47,013)