Quarterly report pursuant to Section 13 or 15(d)

Net Loss Per Share - Summary of Potentially Dilutive Common Shares were Excluded from Calculation of Diluted Net Loss Per Share (Details)

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Net Loss Per Share - Summary of Potentially Dilutive Common Shares were Excluded from Calculation of Diluted Net Loss Per Share (Details) - shares
 3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]        
Total dilutive common shares excluded from calculation of diluted net loss per share 3,357,969 3,956,522 3,357,969 3,956,522
Shares Subject to Options to Purchase Common Stock        
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]        
Total dilutive common shares excluded from calculation of diluted net loss per share 1,259,458 1,806,493 1,259,458 1,806,493
Unvested Restricted Stock Units        
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]        
Total dilutive common shares excluded from calculation of diluted net loss per share 2,098,482 2,150,000 2,098,482 2,150,000
Shares Subject to Warrants to Purchase Common Stock        
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]        
Total dilutive common shares excluded from calculation of diluted net loss per share 29 29 29 29