CONDENSED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Income Statement [Abstract]
Revenue from Contract with Customer, Product and Service [Extensible List]	License [Member]	License [Member]
Collaboration revenue	$ 57	$ 0
Operating expenses:
Research and development	16,667	19,187
General and administrative	5,051	4,979
Expense from operations	21,718	24,166
Loss from operations	(21,661)	(24,166)
Other income (expense)	937	(362)
Net loss	(20,724)	(24,528)
Unrealized gain on investments	538	33
Comprehensive loss	$ (20,186)	$ (24,495)
Net loss per share – basic (in dollars per share)	$ (0.49)	$ (0.58)
Net loss per share – diluted (in dollars per share)	$ (0.49)	$ (0.58)
Weighted-average shares outstanding – basic (in shares)	42,439,204	42,357,625
Weighted-average shares outstanding – diluted (in shares)	42,439,204	42,357,625