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Employee Benefit Plans (Tables) | 9 Months Ended
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Sep. 30, 2017
Share-based Compensation [Abstract] |
Summary Of Stock Option Activity | A summary of the Company’s stock option activity and related information is presented below:
| Nine months ended September 30,
| 2017 | 2016
Options | Weighted-Average Exercise Price | Options | Weighted-Average Exercise Price
Outstanding at January 1 | 86,613 |  | $ | 41.08 |  | 95,015 |  | $ | 38.38 |
Granted | 17,631 |  | 66.32 |  | 24,348 |  | 43.73 |
Exercised | (16,639 | ) | 35.91 |  | (21,000 | ) | 33.57 |
Outstanding at September 30 | 87,605 |  | $ | 47.15 |  | 98,363 |  | $ | 40.76 |
Exerciseable at September 30 | 7,887 |  | $ | 37.37 |  | 14,750 |  | $ | 36.53 |
Information regarding stock option exercises and stock-based compensation expense associated with stock options is provided in the following table (in thousands):
| Nine months ended September 30,
| 2017 | 2016
Proceeds from stock option exercises | $ | 597 |  | $ | 705 |
Intrinsic value of stock options exercised | 481 |  | 317 |
Stock-based compensation expense associated with stock options | $ | 186 |  | $ | 180 |
At period-end: | September 30, 2017 |
Unrecognized stock-based compensation expense associated with stock options | $ | 442 |  |
Weighted average period (in years) in which the above amount is expected to be |  |
recognized | 2.7 |  |
Stock Options Outstanding And Exercisable | Additional information regarding stock options outstanding and exercisable at September 30, 2017, is provided in the following table:
Ranges of Exercise Prices | No. of Options Outstanding | Weighted-Average Exercise Price | Weighted-Average Remaining Contractual Life (Years) | Aggregate Intrinsic Value (in thousands) | No. of Options Currently Exercisable | Weighted-Average Exercise Price of Options Currently Exercisable | Weighted-Average Remaining Contractual Life (Years) | Aggregate Intrinsic Value of Options Currently Exercisable (in thousands)
$30.00 - $34.99 | 500 |  | $ | 30.38 |  | 1.1 | 21 |  | 500 |  | $ | 30.38 |  | 1.1 |  | $ | 21 |
35.00 - 39.99 | 20,854 |  | 37.13 |  | 5.2 | 725 |  | 5,379 |  | 35.39 |  | 4.5 |  | 196 |
40.00 - 44.99 | 35,659 |  | 43.95 |  | 7.8 | 997 |  | 2,008 |  | 44.43 |  | 6.5 |  | 55 |
45.00 - 49.99 | 12,961 |  | 46.61 |  | 7.4 | 328 |  | — |  | — |  | — |  | — |
50.00 - 70.00 | 17,631 |  | 66.32 |  | 9.4 | $ | 99 |  | — |  | — |  | — |  | $ | — |
| 87,605 |  |  |  | $ | 2,170 |  | 7,887 |  |  |  | $ | 272 |
Weighted Average Assumptions Estimate The Fair Value Of Options Granted | The following weighted average assumptions were used to estimate the fair value of options granted:
| Nine months ended September 30,
| 2017 | 2016
Risk-free interest rate | 2.12 | % | 1.43 | %
Expected dividend yield | 2.60 | % | 3.86 | %
Volatility factor | 25.80 | % | 30.76 | %
Expected life of option | 7.0 years |  | 7.0 years |
Restricted Shares Activity And Related Information | A summary of the Company’s restricted shares activity and related information is presented below:
| Nine months ended September 30,
| 2017 | 2016
Restricted Awards | Average Market Price at Grant | Restricted Awards | Average Market Price at Grant
Outstanding at January 1 | 182,122 |  | $ | 39.40 |  | 172,921 |  | $ | 37.83 |
Granted | 27,339 |  | 64.42 |  | 28,801 |  | 46.16 |
Forfeited | (1,850 | ) | 42.25 |  | (500 | ) | 46.54 |
Vested | (37,278 | ) | 35.02 |  | (22,200 | ) | 33.81 |
Outstanding at September 30 | 170,333 |  | $ | 44.35 |  | 179,022 |  | $ | 39.21 |
Information regarding stock-based compensation associated with restricted shares is provided in the following table (in thousands):
| Nine months ended September 30,
| 2017 | 2016
Stock-based compensation expense associated with restricted shares | $ | 1,107 |  | $ | 1,010 |
At period-end: | September 30, 2017 |
Unrecognized stock-based compensation expense associated with restricted shares | $ | 3,606 |  |
Weighted average period (in years) in which the above amount is expected to be |  |
recognized | 3.4 |  |
Net Periodic Pension Cost Of The Defined Benefit Plan | The following table presents details of the Company's activities pursuant to these plans (in thousands):
| Three months ended September 30, | Nine months ended September 30,
2017 | 2016 | 2017 | 2016
Components of net periodic cost: |  |  |  |
Interest cost | $ | 193 |  | $ | 205 |  | $ | 579 |  | $ | 615 |
Expected return on plan assets | (294 | ) | (288 | ) | (883 | ) | (865 | )
Net amortization and deferral | 212 |  | 212 |  | 641 |  | 636 |
Net Periodic Pension Cost | $ | 111 |  | $ | 129 |  | $ | 337 |  | $ | 386 |
401(k) Plan expense | $ | 207 |  | $ | 197 |  | $ | 654 |  | $ | 615 |
Defined Benefit Plan contributions | $ | — |  | $ | — |  | $ | — |  | $ | — |

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- Definition Tabular disclosure of the number of fully vested share options (or share units) and share options expected to vest at the date of the latest statement of financial position, weighted-average exercise price (or conversion ratio), aggregate intrinsic value (except for nonpublic entities), and weighted-average remaining contractual term for both options (or share units) currently outstanding and options (or share units) exercisable (or convertible). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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