Note 9 - Property and Equipment, Net - Property and Equipment, Net (Details) - USD ($) $ in Thousands |
Jun. 30, 2023 |
Dec. 31, 2022 |
|---|---|---|
| Property and equipment, gross | $ 2,324 | $ 2,480 |
| Less: accumulated depreciation | (2,133) | (2,231) |
| Property and equipment, net | 191 | 249 |
| Vehicles [Member] | ||
| Property and equipment, gross | 758 | 855 |
| Office Equipment [Member] | ||
| Property and equipment, gross | 833 | 865 |
| Electronic Devices [Member] | ||
| Property and equipment, gross | 555 | 575 |
| Leasehold Improvements [Member] | ||
| Property and equipment, gross | $ 178 | $ 185 |