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Earnings Per Share (Tables) | 6 Months Ended
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Jun. 30, 2018
Earnings Per Share [Abstract] |
Computation of Basic and Diluted Earnings Per Share | The computation of basic and diluted earnings per share is shown below:
| Three months ended June 30, |  | Six months ended June 30,
| 2018 |  | 2017 |  | 2018 |  | 2017
Basic earnings per common share computation: |  |  |  |  |  |  |
Net income per consolidated statements of income | $ | 8,441 |  |  | $ | 6,683 |  |  | $ | 15,538 |  |  | $ | 13,163 |
Net earnings allocated to participating securities | (39 | ) |  | (40 | ) |  | (73 | ) |  | (78 | )
Net earnings allocated to common stock | $ | 8,402 |  |  | $ | 6,643 |  |  | $ | 15,465 |  |  | $ | 13,085 |
Distributed earnings allocated to common stock | $ | 2,510 |  |  | $ | 2,507 |  |  | $ | 5,019 |  |  | $ | 5,015 |
Undistributed earnings allocated to common stock | 5,892 |  |  | 4,136 |  |  | 10,446 |  |  | 8,070 |
Net earnings allocated to common stock | $ | 8,402 |  |  | $ | 6,643 |  |  | $ | 15,465 |  |  | $ | 13,085 |
Weighted average common shares outstanding, including shares considered participating securities | 15,286 |  |  | 15,294 |  |  | 15,279 |  |  | 15,138 |
Less: Average participating securities | (69 | ) |  | (88 | ) |  | (70 | ) |  | (87 | )
Weighted average shares | 15,217 |  |  | 15,206 |  |  | 15,209 |  |  | 15,051 |
Basic earnings per common share | $ | 0.55 |  |  | $ | 0.44 |  |  | $ | 1.02 |  |  | $ | 0.87 |
Diluted earnings per common share computation: |  |  |  |  |  |  |
Net earnings allocated to common stock | $ | 8,402 |  |  | $ | 6,643 |  |  | $ | 15,465 |  |  | $ | 13,085 |
Weighted average shares and dilutive potential common shares | 15,217 |  |  | 15,206 |  |  | 15,209 |  |  | 15,051 |
Diluted earnings per common share | $ | 0.55 |  |  | $ | 0.44 |  |  | $ | 1.02 |  |  | $ | 0.87 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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