Condensed Consolidated Statements of Operations and Comprehensive Loss (unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Statement [Abstract]
Collaboration revenue	$ 5,367
Operating expenses:
Research and development	8,505	$ 4,770
General and administrative	3,888	3,061
Total operating expenses	12,393	7,831
Loss from operations	(7,026)	(7,831)
Other income:
Interest income	14	29
Total other income	14	29
Net loss	(7,012)	(7,802)
Comprehensive loss	$ (7,012)	$ (7,802)
Net loss per share attributable to common stockholders—basic and diluted	$ (0.54)	$ (0.60)
Weighted-average common shares outstanding—basic and diluted	13,008,779	12,945,546