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Commitments and Contingencies - Commitment and Contingencies - Summary of Obligations Future Minimum Lease Payments (Details)
$ in Thousands
Jun. 30, 2019
USD ($)
Commitments And Contingencies Disclosure [Abstract]  
2019 $ 380
2020 594
2021 606
2022 618
2023 630
Thereafter 1,686
Total $ 4,514