CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Total revenue	$ 132	$ 142	$ 300	$ 1,795
Operating expenses:
Research and development	10,222	1,281	25,112	6,657
General and administrative	3,269	3,211	9,127	8,713
Total operating expenses	13,491	4,492	34,239	15,370
Loss from operations	(13,359)	(4,350)	(33,939)	(13,575)
Investment and other income, net	107	24	597	27
Interest expense	(1)	0	(65)	0
Net loss	$ (13,253)	$ (4,326)	$ (33,407)	$ (13,548)
Net loss per share basic (in usd per share)	$ (0.16)	$ (0.15)	$ (0.47)	$ (0.82)
Net loss per share (in usd per share)	$ (0.16)	$ (0.15)	$ (0.47)	$ (0.82)
Weighted-average shares used to compute net loss per share, basic	83,378,318	28,107,785	70,959,097	16,475,843
Weighted-average shares used to compute net loss per share, diluted	83,378,318	28,107,785	70,959,097	16,475,843
Collaboration revenue
Total revenue	$ 0	$ 142	$ 0	$ 1,795
Royalty revenue
Total revenue	$ 132	$ 0	$ 300	$ 0