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Commitments and Contingencies - Future Minimum Lease Payment (Details)
$ in Thousands
Sep. 30, 2018
USD ($)
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity  
2019 $ 1,316
2020 1,382
2021 1,017
2022 1,070
2023 1,037
Thereafter 1,300
Total $ 7,122