Summary of Significant Accounting Policies - Amortization Intangible Assets (Details) - USD ($) $ in Thousands |
Dec. 31, 2019 |
Dec. 31, 2018 |
|---|---|---|
| Finite-Lived Intangible Assets [Line Items] | ||
| Intangible assets subject to amortization, gross | $ 3,278 | $ 3,458 |
| Less accumulated amortization | 675 | 474 |
| Intangible assets subject to amortization, net | 2,603 | 2,984 |
| Trade names | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Intangible assets subject to amortization, gross | 3,230 | 3,410 |
| Other intangible assets | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Intangible assets subject to amortization, gross | $ 48 | $ 48 |