STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Operating expenses:
Research and development	$ 56,858	$ 35,921	$ 22,844
General and administrative	22,013	13,422	5,725
Acquired in-process research and development	0	24,843	0
Total operating expenses	78,871	74,186	28,569
Loss from operations	(78,871)	(74,186)	(28,569)
Other income:
Interest income, net	141	306	1,397
Other income	15	177	289
Total other income	156	483	1,686
Net loss	(78,715)	(73,703)	(26,883)
Other comprehensive loss:
Unrealized loss on available-for-sale securities	(72)	(31)
Comprehensive loss	$ (78,787)	$ (73,734)	$ (26,883)
Net loss per share, basic and diluted	$ (2.07)	$ (3.36)	$ (14.15)
Weighted-average shares outstanding, basic and diluted	37,954,280	21,942,476	1,899,348