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Employee Benefit Plans (Tables) | 12 Months Ended
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Dec. 31, 2019
Compensation And Retirement Disclosure [Abstract] |
Summary of Restricted Shares Issued, Vested and Forfeited | The table below summarizes the details of the restricted shares issued, vested, and forfeited for the years ending December 31, 2019, 2018 and 2017.
|  | Year Ended December 31, |
|  | 2019 |  |  | 2018 |  |  | 2017 |
|  | Number of Shares |  |  | Number of Employees |  |  | Number of Shares |  |  | Number of Employees |  |  | Number of Shares |  |  | Number of Employees |
Restricted shares issued |  |  | 38,100 |  |  |  | 94 |  |  |  | 33,000 |  |  |  | 80 |  |  |  | 32,000 |  |  |  | 74 |
Restricted shares vested |  |  | 26,070 |  |  |  | 63 |  |  |  | 28,790 |  |  |  | 56 |  |  |  | 24,230 |  |  |  | 52 |
Restricted shares awarded due to retirement |  |  | 14,300 |  |  |  | 3 |  |  |  | - |  |  |  | - |  |  |  | 640 |  |  |  | 1 |
Restricted shares forfeited |  |  | 3,220 |  |  |  | 4 |  |  |  | 2,620 |  |  |  | 5 |  |  |  | 1,080 |  |  |  | 2 |
Activity of Restricted Stock Awards | The following table summarizes the activity of restricted stock awards as of December 31:
|  | Year Ended December 31, |
|  | 2019 |  |  | 2018 |  |  | 2017 |
|  | Number of Shares |  |  | Weighted average fair value per award |  |  | Number of Shares |  |  | Weighted average fair value per award |  |  | Number of Shares |  |  | Weighted average fair value per award |
Beginning of period |  |  | 93,940 |  |  | $ | 29.87 |  |  |  | 92,350 |  |  | $ | 19.17 |  |  |  | 86,300 |  |  | $ | 14.10 |
Granted |  |  | 38,100 |  |  |  | 25.14 |  |  |  | 33,000 |  |  |  | 44.63 |  |  |  | 32,000 |  |  |  | 27.79 |
Vested |  |  | (40,370 | ) |  |  | 21.76 |  |  |  | (28,790 | ) |  |  | 13.18 |  |  |  | (24,870 | ) |  |  | 12.81 |
Forfeited |  |  | (3,220 | ) |  |  | 30.12 |  |  |  | (2,620 | ) |  |  | 44.04 |  |  |  | (1,080 | ) |  |  | 37.06 |
Nonvested, end of period |  |  | 88,450 |  |  | $ | 31.52 |  |  |  | 93,940 |  |  | $ | 29.87 |  |  |  | 92,350 |  |  | $ | 19.17 |

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- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + 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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