SHARE-BASED COMPENSATION - Stock option activity (Details) - $ / shares |
12 Months Ended | |
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Dec. 31, 2021 |
Dec. 31, 2020 |
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| Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] | ||
| Granted | 2,357,500 | |
| Vested | 930,833 | |
| Outstanding and expected to vest | 1,426,667 | |
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] | ||
| Weighted Average Exercise price, Beginning of the period | $ 6.20 | |
| Weighted Average Exercise price, granted | $ 4.72 | $ 6.21 |
| Weighted Average Exercise price, Vested | 6.22 | |
| Weighted Average Exercise price, End of the period | $ 6.20 | |
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- Definition Share-based compensation arrangements by share-based payment award, options, vested, weighted average exercise price. No definition available.
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- Definition Gross number of share options (or share units) granted during the period. No definition available.
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- Definition Number of options outstanding, including both vested and non-vested options. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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- Definition Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options. No definition available.
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- Definition Number of options vested. No definition available.
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