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Computation of Earnings Per Share (Tables) | 9 Months Ended
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Sep. 30, 2019
Earnings Per Share [Abstract] |
Calculation of Basic and Diluted Earnings Per Share | The calculation of basic and diluted earnings per share for the three and nine months ended September 30, 2019 and 2018 was as follows:
|  | Three Months Ended September 30 |  |  | Nine Months Ended September 30 |
|  | 2019 |  |  | 2018 |  |  | 2019 |  |  | 2018 |
Numerator |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income |  | $ | 7,951 |  |  | $ | 9,054 |  |  | $ | 17,679 |  |  | $ | 21,318 |
Denominator |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Determination of shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted-average common shares outstanding |  |  | 5,024 |  |  |  | 5,025 |  |  |  | 5,039 |  |  |  | 5,038 |
Dilutive effect - share-based awards |  |  | 95 |  |  |  | 113 |  |  |  | 38 |  |  |  | 50 |
Diluted weighted-average common shares outstanding |  |  | 5,119 |  |  |  | 5,138 |  |  |  | 5,077 |  |  |  | 5,088 |
Earnings per common share |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | 1.58 |  |  | $ | 1.80 |  |  | $ | 3.51 |  |  | $ | 4.23 |
Diluted |  | $ | 1.55 |  |  | $ | 1.76 |  |  | $ | 3.48 |  |  | $ | 4.19 |

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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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