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Net Loss per Share - Summary of Basic and Diluted Net Loss per Share Attributable to Common Stockholders (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Numerator:    
Net loss attributable to common shareholders—basic and diluted $ (53,417) $ (27,216)
Net loss attributable to common shareholders—basic and diluted $ (53,417) $ (27,216)
Denominator:    
Weighted-average common shares outstanding—basic and diluted 20,045,602 1,528,374
Net loss per share attributable to common shareholders—basic and diluted $ (2.66) $ (17.81)