Quarterly report pursuant to Section 13 or 15(d)

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

v3.20.1
Net Loss Per Share Attributable to Common Stockholders - Summary of Dilutive Common Shares were Excluded from Calculation of Diluted Net Loss Per Share (Details) - shares
 3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]    
Total dilutive common shares excluded from calculation of diluted net loss per share 3,135,354 2,517,518
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 2,127,840 1,261,946
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 226,500  
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 956 156,294
Shares Subject to Term Debt Optional Conversion into 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 780,058 1,099,278