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STOCK-BASED COMPENSATION PLANS (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2023
STOCK-BASED COMPENSATION PLANS |
Summary of restricted stock grants, fair value and performance based awards | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ |  | Awards with
​ |  | Unvested | ​ | Weighted average |  | performance
​ | ​ | restricted stock | ​ | grant date fair | ​ | vesting
For the year ended December 31, |  | awards |  | value |  | requirements
2023 | ​ | 129,328 | ​ | $ | 40.85 | ​ | 74,495
2022 | ​ | 182,497 | ​ | $ | 33.21 | ​ | 111,251
2021 | ​ | 109,462 | ​ | $ | 32.06 | ​ | 63,432
Summary of restricted stock activity | ​
​ | ​ | ​
​ | ​ | Number of
​ |  | shares
Unvested Balance, December 31, 2020 |  | 357,342
Awarded |  | 109,462
Vested |  | (162,419)
Forfeited |  | (10,808)
Unvested Balance, December 31, 2021 |  | 293,577
Awarded |  | 182,497
Vested |  | (156,847)
Forfeited |  | (14,280)
Unvested Balance, December 31, 2022 |  | 304,947
Awarded |  | 129,328
Vested |  | (154,208)
Forfeited |  | (25,957)
Unvested Balance, December 31, 2023 |  | 254,110

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- Definition Tabular disclosure of the number of unvested restricted stock awards, weighted average grant date fair value, and performance vesting requirements + References No definition available. + Details
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- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
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