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Leases - Future Payment Due Under Operating Leases (Details)
$ in Thousands
Jun. 30, 2019
USD ($)
Future Payment Due Under Operating Leases  
2019 $ 1,239
2020 2,537
2021 2,609
2022 2,574
2023 462
Total undiscounted lease payments 9,421
Less effects of discounting (1,028)
Present value of lease payments $ 8,393