Quarterly report pursuant to Section 13 or 15(d)

Stock-based Compensation - Additional Information (Details)

v3.19.3
Stock-based Compensation - Additional Information (Details) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Jun. 30, 2019
Mar. 31, 2018
Sep. 30, 2019
Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Percent of employee match       50.00%
Stock options        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Unrecognized compensation expense     $ 3,885  
Unrecognized compensation expense, period of recognition     2 years 7 months 25 days  
RSU        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Unrecognized compensation expense     $ 224  
Unrecognized compensation expense, period of recognition     2 years 9 months 15 days  
Right to receive stock (in shares)     1  
Equity Incentive Plan 2014        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Additional shares authorized for grant (in shares) 3,500,000      
Shares authorized for grant (in shares)     12,614,000  
Shares available for grant (in shares)     4,431,000  
Common Stock        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Shares issued in employee benefit plan (in shares)   221,000 141,000