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Commitments and Contingencies (Tables) | 12 Months Ended
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Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract] |
Summary of Commitments and Contingencies | The following schedule presents the future minimum lease obligations for all non-cancelable operating leases at December 31, 2018 (in thousands):
Year ending December 31, |  |  |
2019 |  | $ | 320 |
2020 |  |  | 143 |
2021 |  |  | 97 |
2022 |  |  | 34 |
2023 & thereafter |  |  | — |
|  | $ | 594 |

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