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Earnings Per Share (Tables) | 12 Months Ended
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Dec. 31, 2017
Earnings Per Share [Abstract] |
Computation of Basic and Diluted Earnings Per Share | The following schedule reconciles the computation of basic and diluted earnings per share for the periods indicated:
|  | Year Ended December 31, |
In thousands, except per share amounts |  | 2017 |  |  | 2016 |  |  | 2015 |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |
Net income |  | $ | 29,963 |  |  | $ | 24,031 |  |  | $ | 23,365 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |
Weighted average shares outstanding for basic earnings per share |  |  | 11,551 |  |  |  | 11,824 |  |  |  | 12,849 |
Effect of dilutive securities |  |  | 232 |  |  |  | 261 |  |  |  | 225 |
Weighted average shares adjusted for dilutive securities |  |  | 11,783 |  |  |  | 12,085 |  |  |  | 13,074 |
Earnings per share: |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | 2.59 |  |  | $ | 2.03 |  |  | $ | 1.82 |
Diluted |  | $ | 2.54 |  |  | $ | 1.99 |  |  | $ | 1.79 |

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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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