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Consolidated Statements of Operations - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Operating expenses:    
Research and development $ 25,590 $ 18,317
General and administrative 11,845 8,771
Total operating expenses 37,435 27,088
Loss from operations (37,435) (27,088)
Other income (expense):    
Interest and investment income 236 845
Other expense, net (101) (50)
Total other income, net 135 795
Net loss $ (37,300) $ (26,293)
Net loss per share - basic and diluted (in dollars per share) $ (2.03) $ (2.35)
Weighted-average common shares outstanding used in net loss per share - basic and diluted (in shares) 18,351,470 11,199,057