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Statements of Operations - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Revenue:    
Grant revenue   $ 226
Revenue, Product and Service [Extensible List] us-gaap:ResearchAndDevelopmentArrangementContractToPerformForOthersCompensationEarned us-gaap:ResearchAndDevelopmentArrangementContractToPerformForOthersCompensationEarned
Operating expenses:    
Research and development (including related party amounts of $405 and $53, respectively) $ 24,778 $ 6,060
General and administrative (including related party amounts of $328 and $292, respectively) 11,053 2,496
Total operating expenses 35,831 8,556
Loss from operations (35,831) (8,330)
Other income, net (including related party expense amounts of $0 and $30, respectively) 298 50
Net loss $ (35,533) $ (8,280)
Net loss per share, basic and diluted $ (0.77) $ (0.52)
Weighted-average shares of common stock outstanding, basic and diluted 45,936,235 15,796,674