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Commitments and Contingencies - Summary of future minimum lease payments (Details) - USD ($) $ in Thousands | Sep. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Lease Liability Maturity [Line Items] |  |
2020 | $ 72 | $ 216
2021 | 278 | 204
2022 | 187 | 113
2023 | 19 | 4
2024 | 0 | 0
Thereafter | 0 | 0
Total minimum lease payments | 556 | 537
Less: amount representing interest | 59 | 83
Long-term capital lease obligations as of September 30, 2020 | 497 | 454
2020 | 1,237 | 5,965
2021 | 4,952 | 6,264
2022 | 5,428 | 5,975
2023 | 3,992 | 3,992
2024 | 746 | 746
Thereafter | 0 | 0
Total minimum lease payments | $ 16,355 | $ 22,942

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- Definition Amount of minimum lease payments for capital leases due in the remainder of the fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References No definition available. + Details
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