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Commitments and Contingencies - Summary of Lease Liabilities and Right-of-Use Assets (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Assets |  |
Operating | $ 636 | $ 781
Financing | 7 | 134
Total leased assets | 643 | 915
Liabilities |  |
Operating lease liabilities, current | 123 | 147
Financing lease liabilities, current | 10 | 120
Operating lease liabilities. noncurrent | 528 | 646
Financing lease liabilities, noncurrent |  | 8
Total lease liabilities | $ 661 | $ 921
Weighted-average remaining lease term (years) - operating leases | 6 years 6 months 25 days | 6 years 10 months 20 days
Weighted-average remaining lease term (years) - finance leases | 5 months 1 day | 1 year 29 days
Weighted-average discount rate - operating leases | 7.79% | 7.93%
Weighted-average discount rate - finance leases | 5.00% | 5.00%

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