Condensed Consolidated Statements of Operations and Comprehensive Los (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Revenue:
License and collaboration revenue	$ 794	$ 1,467
Operating expenses:
Research and development	9,703	17,013
General and administrative	4,994	5,412
Total operating expenses	15,495	23,905
Loss from operations	(14,701)	(22,438)
Interest and other income, net	165
Net loss and comprehensive loss	$ (14,536)	$ (22,438)
Net loss per share attributable to common stockholders, basic and diluted	$ (0.46)	$ (0.79)
Shares used to compute net loss per share attributable to common stockholders, basic and diluted	31,456,090	28,385,432
Collaboration
Revenue:
License and collaboration revenue	$ 794	$ 1,467
Cost of collaboration
Operating expenses:
Cost of license and collaboration	$ 798	$ 1,480