Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Revenue
Total revenue	$ 4,956	$ 2,412	$ 7,663	$ 6,457
Operating expenses
Research and development	18,668	11,343	48,985	25,347
General and administrative	2,836	2,643	9,651	8,102
Total operating expenses	21,504	13,986	58,636	33,449
Loss from operations	(16,548)	(11,574)	(50,973)	(26,992)
Other income, net:
Interest income	147	9	220	29
Change in fair value of warrant liability	0	0	1,410	0
Other income, net	738	479	2,146	768
Total other income, net	885	488	3,776	797
Net loss	$ (15,663)	$ (11,086)	$ (47,197)	$ (26,195)
Net loss per share - basic and diluted (in dollars per share)	$ (0.51)	$ (0.53)	$ (1.72)	$ (1.33)
Weighted-average common shares used to compute basic and diluted net loss per share (in shares)	30,518	20,763	27,419	19,758
Collaborative Arrangement [Member]
Revenue
Total revenue	$ 4,956	$ 2,412	$ 7,663	$ 6,457