XML 27 R47.htm IDEA: XBRL DOCUMENT v3.19.3
Net Loss Per Common Share - Schedule of Potentially Dilutive Securities Excluded from Diluted Net Loss Per Common Share (Details) - shares
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Antidilutive Securities        
Potentially dilutive securities excluded from diluted net loss per common share 2,154,768 1,626,465 2,154,768 1,626,465
Options to purchase common stock        
Antidilutive Securities        
Potentially dilutive securities excluded from diluted net loss per common share 1,907,712 1,494,534 1,907,712 1,494,534
Restricted stock units        
Antidilutive Securities        
Potentially dilutive securities excluded from diluted net loss per common share 219,220 94,480 219,220 94,480
Common stock subject to repurchase        
Antidilutive Securities        
Potentially dilutive securities excluded from diluted net loss per common share   9,615   9,615
Common stock warrants        
Antidilutive Securities        
Potentially dilutive securities excluded from diluted net loss per common share 27,836 27,836 27,836 27,836