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SHARE-BASED COMPENSATION (Tables) | 12 Months Ended
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Dec. 31, 2021
Share-based Payment Arrangement [Abstract] |
Summary of the effects of share-based compensation to options and awards granted under the Company's equity incentive plans | The following table summarizes the effects of share-based compensation for options and awards granted under the Company's equity incentive plans for each of the periods presented:
| Year Ended December 31,
(Dollars in thousands) | 2021 |  | 2020 |  | 2019
Salaries and employee benefits | $ | 4,580 |  |  | $ | 3,822 |  |  | $ | 4,289 |
Directors stock awards | 91 |  |  | 165 |  |  | 96 |
Income tax benefit | (1,449) |  |  | (809) |  |  | (1,427) |
Net share-based compensation effect | $ | 3,222 |  |  | $ | 3,178 |  |  | $ | 2,958 |
Summary of option activity for stock option plans | The following is a summary of option activity for our stock option plans for the year ended December 31, 2021:
| Number of Units |  | Weighted Average Exercise Price |  | Weighted Average Remaining Contractual Term (in years) |  | Aggregate Intrinsic Value (in thousands)
Stock options outstanding as of January 1, 2021 | 133,813 |  |  | $ | 14.31 |  |  |  |  |
Changes during the year: |  |  |  |  |  |  |
Granted | — |  |  | — |  |  |  |  |
Exercised | (86,373) |  |  | 14.31 |  |  |  |  | 944 |
Expired | — |  |  | — |  |  |  |  |
Forfeited | — |  |  | — |  |  |  |  |
Stock options outstanding as of December 31, 2021 | 47,440 |  |  | 14.32 |  |  | 0.3 |  | 657 |
Vested and exercisable as of December 31, 2021 | 47,440 |  |  | 14.32 |  |  | 0.3 |  | 657 |
Schedule of activity of restricted stock awards and units | The table below presents the activity of restricted stock awards and units for each of the periods presented:
| Number of Units |  | Weighted Average Grant Date Fair Value |  | Fair Value of Restricted Stock Awards and Units That Vested During The Year (in thousands)
Unvested as of December 31, 2018 | 362,725 |  |  | $ | 26.98 |  |  |
Changes during the year: |  |  |  |  |
Granted | 181,431 |  |  | 28.89 |  |  |
Forfeited | (17,689) |  |  | 29.10 |  |  |
Vested | (160,000) |  |  | 24.55 |  |  | $ | 3,927 |
Unvested as of December 31, 2019 | 366,467 |  |  | 28.89 |  |  |
Changes during the year: |  |  |  |  |
Granted | 322,180 |  |  | 18.11 |  |  |
Forfeited | (28,058) |  |  | 23.79 |  |  |
Vested | (128,215) |  |  | 29.48 |  |  | 3,780 |
Unvested as of December 31, 2020 | 532,374 |  |  | 22.49 |  |  |
Changes during the year: |  |  |  |  |
Granted | 221,774 |  |  | 21.93 |  |  |
Forfeited | (75,850) |  |  | 21.95 |  |  |
Vested | (192,959) |  |  | 23.42 |  |  | 5,077 |
Unvested as of December 31, 2021 | 485,339 |  |  | 21.95 |  |  |

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