Balance Sheet Accounts - Narrative (Details) - USD ($) $ in Thousands |
3 Months Ended | ||
|---|---|---|---|
Mar. 31, 2020 |
Mar. 31, 2019 |
Dec. 31, 2019 |
|
| Organization, Consolidation and Presentation of Financial Statements [Abstract] | |||
| Depreciation and amortization expense | $ 600 | $ 600 | |
| Capital leased assets, gross value | 1,500 | $ 1,500 | |
| Depreciation | $ 20 | $ 21 | |