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Earnings Per Share (Tables) | 3 Months Ended
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Mar. 31, 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 |
|  | March 31, |
|  | 2018 |  |  | 2017 |
Basic earnings per common share computation: |  |  |  |  |  |  |  |
Net income per consolidated statements of income |  | $ | 7,097 |  |  | $ | 6,480 |
Net earnings allocated to participating securities |  |  | (34 | ) |  |  | (39 | )
Net earnings allocated to common stock |  | $ | 7,063 |  |  | $ | 6,441 |
Distributed earnings allocated to common stock |  | $ | 2,509 |  |  | $ | 2,508 |
Undistributed earnings allocated to common stock |  |  | 4,554 |  |  |  | 3,933 |
Net earnings allocated to common stock |  | $ | 7,063 |  |  | $ | 6,441 |
Weighted average common shares outstanding, including shares considered participating securities |  |  | 15,273 |  |  |  | 14,979 |
Less: Average participating securities |  |  | (72 | ) |  |  | (86 | )
Weighted average shares |  |  | 15,201 |  |  |  | 14,893 |
Basic earnings per common share |  | $ | 0.46 |  |  | $ | 0.43 |
Diluted earnings per common share computation: |  |  |  |  |  |  |  |
Net earnings allocated to common stock |  | $ | 7,063 |  |  | $ | 6,441 |
Weighted average common shares outstanding for basic earnings per common share |  |  | 15,201 |  |  |  | 14,893 |
Add: Dilutive effects of assumed exercises of stock options |  |  | 0 |  |  |  | 0 |
Weighted average shares and dilutive potential common shares |  |  | 15,201 |  |  |  | 14,893 |
Diluted earnings per common share |  | $ | 0.46 |  |  | $ | 0.43 |

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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://www.xbrl.org/2003/role/presentationRef -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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