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Statements of Operations - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Revenue:    
Collaboration and license revenue $ 18,038 $ 13,363
Collaboration and license revenue, related parties   249
Total revenue 18,038 13,612
Operating expenses:    
Research and development (includes $935 and $579 for the years ended December 31, 2021, and 2020, respectively, attributable to related parties) 61,360 53,038
General and administrative 28,011 17,238
Total operating expenses 89,371 70,276
Loss from operations (71,333) (56,664)
Other income (expense):    
Interest income 137 152
Other income (expense), net (121) (181)
Total other income (expense) 16 (29)
Net loss $ (71,317) $ (56,693)
Net loss per share, basic and diluted $ (2.57) $ (8.82)
Weighted-average shares outstanding used in computing net loss per share, basic and diluted 27,730,420 6,430,555