Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands |
Dec. 31, 2021 |
Dec. 31, 2020 |
|---|---|---|
| Prepaid Expenses And Other Current Assets | ||
| Advances to suppliers | $ 188 | $ 374 |
| Prepaid insurance | 1,222 | 709 |
| IVA taxes receivable, net | 20 | 846 |
| Promissory Note | 3,885 | |
| Other current assets | 266 | 647 |
| Total | $ 1,696 | $ 2,576 |