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SHARE-BASED COMPENSATION (Tables) | 6 Months Ended
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Jun. 30, 2021
SHARE-BASED COMPENSATION |
Schedule of restricted stock units activity | The following is a summary of restricted stock units (the “RSU”) activity (in thousands, except per unit data):
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Number of Units | ​ | ​ | Weighted Average Grant date Fair Value
Nonvested, January 1, 2021 | ​ | 45 | ​ | $ | 13.68
Granted | ​ | - | ​ | $ | -
Vested | ​ | (9) | ​ | $ | 13.63
Nonvested, June 30, 2021 | ​ | 36 | ​ | $ | 13.70
Schedule of stock option activity | The following is a summary of option activity (in thousands, except per unit data):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Number of Units |  | Weighted Average Exercise Price |  | Weighted Average Fair Value |  | Weighted Average Remaining Contractual Life |  | Aggregate Intrinsic Value
Outstanding, January 1, 2021, nonvested | ​ | 35 | ​ | $ | 14.44 | ​ | $ | 8.67 | ​ | 9.61 | ​ | ​ | ​
Granted | ​ | — | ​ | $ | — | ​ | $ | — | ​ | — | ​ | ​ | ​
Exercised | ​ | — | ​ | $ | — | ​ | $ | — | ​ | — | ​ | ​ | ​
Outstanding, June 30, 2021, nonvested | ​ | 35 | ​ | $ | 14.44 | ​ | $ | 8.67 | ​ | 9.11 | ​ | $ | 86
Exercisable, June 30, 2021 | ​ | — | ​ | $ | — | ​ | $ | — | ​ | — | ​ | $ | —

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