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Summary of Significant Accounting Policies - 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 $ (22,127) $ (16,306)
Accretion of redeemable convertible preferred stock (115) (313)
Net loss attributable to common stockholders $ (22,242) $ (16,619)
Denominator:    
Weighted-average common shares outstanding—basic and diluted 8,590,205 202,093
Net loss per share attributable to common stockholders—basic and diluted $ (2.59) $ (82.23)