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Share-Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2022
Share-Based Payment Arrangement [Abstract] |
Summary of Components of Share Based Compensation Awards | The following table summarizes the components of the Corporation's share-based compensation awards recorded as an expense and the income tax benefit of such awards. For the year ended 2022, RSAs vested at a stock price higher than the grant date stock price resulting in recognition of income tax benefit at vesting of $86,000. In 2021 and 2020, the Corporation had RSAs vest primarily at a stock price that was lower than the grant date stock price, which resulted in the recognition of income tax expense at vesting of $112,000 and $394,000, respectively.
| Years Ended December 31,
| 2022 |  | 2021 |  | 2020
Stock and ESPP Options |  |  |  |  |
Pre-tax compensation expense | $ | 95 |  |  | $ | 155 |  |  | $ | 96 |
Income tax benefit | (74) |  |  | (92) |  |  | (29) |
Stock and ESPP option expense, net of income taxes | $ | 21 |  |  | $ | 63 |  |  | $ | 67 |
Restricted Stock Awards |  |  |  |  |
Pre-tax compensation expense | $ | 4,557 |  |  | $ | 4,607 |  |  | $ | 4,504 |
Income tax benefit | (1,043) |  |  | (855) |  |  | (552) |
Restricted stock awards expense, net of income taxes | $ | 3,514 |  |  | $ | 3,752 |  |  | $ | 3,952 |
Total Share-Based Compensation: |  |  |  |  |
Pre-tax compensation expense | $ | 4,652 |  |  | $ | 4,762 |  |  | $ | 4,600 |
Income tax benefit | (1,117) |  |  | (947) |  |  | (581) |
Total share-based compensation expense, net of income taxes | $ | 3,535 |  |  | $ | 3,815 |  |  | $ | 4,019 |
Summary of Stock Option Activity Under Stock Option Plans | Stock option activity under the Corporation's stock option plans, as of December 31, 2022, and changes during the year ended December 31, 2022, were as follows:
| Number of Shares |  | Weighted-Average Exercise Price |  | Weighted Average Remaining Contractual Term (in Years) |  | Aggregate Intrinsic Value
Outstanding at January 1, 2022 | 28,500 |  |  | $ | 17.14 |  |  |  |  |
Transferred Options from Level One | 148,600 |  |  | $ | 18.84 |  |  |  |  |
Exercised | (22,000) |  |  | $ | 16.28 |  |  |  |  |
Outstanding December 31, 2022 | 155,100 |  |  | $ | 18.89 |  |  | 2.47 |  | $ | 3,446,110 |
Vested and Expected to Vest at December 31, 2022 | 155,100 |  |  | $ | 18.89 |  |  | 2.47 |  | $ | 3,446,110 |
Exercisable at December 31, 2022 | 155,100 |  |  | $ | 18.89 |  |  | 2.47 |  | $ | 3,446,110 |
Summary of Unvested RSAs Outstanding | The following table summarizes information on unvested RSAs outstanding as of December 31, 2022:
| Number of Shares |  | Weighted-Average Grant Date Fair Value
Unvested RSAs at January 1, 2022 | 411,259 |  |  | $ | 35.86 |
Granted | 137,267 |  |  | $ | 40.66 |
Forfeited | (13,775) |  |  | $ | 37.18 |
Vested | (118,046) |  |  | $ | 37.35 |
Unvested RSAs at December 31, 2022 | 416,705 |  |  | $ | 36.97 |

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