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Commitments and Contingencies - Summary of Future Minimum Annual Lease Payments under Operating and Financing Leases (Details) - USD ($) $ in Thousands | Sep. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Financing Leases |  |
Remaining 2020 | $ 32 |
2021 | 7 |
Total minimum lease payments | 39 |
Present value of obligations under leases | 39 |
Total minimum lease payments | 39 |
Less: current portion | 39 |
Operating Leases |  |
Remaining 2020 | 49 |
2021 | 183 |
2022 | 123 |
2023 | 100 |
Thereafter | 447 |
Total minimum lease payments | 902 |
Less: amount representing interest | (217) |
Present value of obligations under leases | 685 |
Less: current portion | (140) | $ (147)
Noncurrent operating lease liability | $ 545 | $ 646

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