Leases - Supplemental Balance Sheet Information (Details) - USD ($) $ in Thousands |
Dec. 31, 2021 |
Dec. 31, 2020 |
|---|---|---|
| Operating leases | ||
| Right-of-use operating lease assets, net | $ 2,206 | $ 2,610 |
| Operating lease liabilities - current | 402 | 788 |
| Operating lease liabilities, non-current | 1,900 | 1,923 |
| Operating lease liabilities | 2,302 | 2,711 |
| Finance leases | ||
| Finance lease right-of-use assets | 154 | 313 |
| Finance lease liabilities - short-term | 13 | 160 |
| Finance lease liabilities - long-term | 0 | 28 |
| Total finance lease liabilities | $ 13 | $ 188 |
| Weighted-average remaining lease term (years) | ||
| Operating leases | 5 years 6 months | 6 years 2 months 12 days |
| Finance leases | 9 months 18 days | 1 year |
| Weighted-average discount rate (%) | ||
| Operating leases | 10.40% | 10.50% |
| Finance leases | 8.30% | 9.10% |