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Commitments and Contingencies - Summary of Lease Liabilities and Right-of-Use Assets (Details) - USD ($) $ in Thousands | Sep. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Assets |  |
Operating | $ 671 | $ 781
Financing | 39 |
Total leased assets | 710 |
Liabilities |  |
Operating lease liabilities, current | 140 | 147
Financing lease liabilities, current | 39 |
Operating lease liabilities. noncurrent | 545 | $ 646
Total lease liabilities | $ 724 |
Weighted-average remaining lease term (years) - operating leases | 6 years 6 months 10 days |
Weighted-average remaining lease term (years) - finance leases | 4 months 13 days |
Weighted-average discount rate - operating leases | 7.90% |
Weighted-average discount rate - finance leases | 5.00% |

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