Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Equity Incentive Plan (Details)

v3.19.2
Stockholders' Equity - Equity Incentive Plan (Details) - Two Thousand Fifteen Incentive Plan [Member]
6 Months Ended
Jun. 30, 2019
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized 2,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period 10 years
Options  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Share-based Compensation Arrangement by Share-based Payment Award, Terms of Award P10Y