RESEARCH AND DEVELOPMENT, NET (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2022 |
Sep. 30, 2021 |
Sep. 30, 2022 |
Sep. 30, 2021 |
|
| RESEARCH AND DEVELOPMENT, NET | ||||
| Research and development | $ 11,705 | $ 12,222 | $ 11,705 | $ 12,222 |
| Research and development expense | $ 3,776 | $ 3,618 | 11,505 | 11,558 |
| Other grants | ||||
| RESEARCH AND DEVELOPMENT, NET | ||||
| Less: Participation by grants | $ (200) | $ (664) | ||