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Share-Based Compensation - Narrative (Details) - USD ($) $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | May 06, 2019
2019 Equity Incentive Plan |  |  |
Share-Based Compensation |  |  |
Awards authorized |  |  | 1,100,000
Awards issued | 0 |  |
Stock Grant Plan | Non Employee Director |  |  |
Share-Based Compensation |  |  |
Awards issued | 13,144 |  |
Stock Grant Plan | Non Employee Director | Restricted stock awards |  |  |
Share-Based Compensation |  |  |
Compensation expense | $ 251 | $ 245 |

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