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Earnings Per Share (Tables) | 9 Months Ended
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Sep. 30, 2019
Earnings Per Share [Abstract] |
Basic and Diluted Shares of Consolidated Condensed Statements of Income | The following summarizes the Common Stock included in the basic and diluted shares, as disclosed on the face of the consolidated condensed statements of income:
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2019 |  |  | 2018 |  |  | 2019 |  |  | 2018 |
Weighted average number of shares for calculation of basic EPS |  |  | 32,838,636 |  |  |  | 36,103,520 |  |  |  | 33,282,584 |  |  |  | 36,364,380 |
Stock options, restricted stock awards and restricted stock units under equity incentive plans |  |  | 94,043 |  |  |  | 344,642 |  |  |  | 135,971 |  |  |  | 105,379 |
Weighted average number of shares for calculation of diluted EPS |  |  | 32,932,679 |  |  |  | 36,448,162 |  |  |  | 33,418,555 |  |  |  | 36,469,759 |
Common Stock Issuable upon Exercise of Certain Stock Options | The following table represents Common Stock issuable upon the exercise of certain stock options that have been excluded from the diluted earnings calculation because the effect of their inclusion would be anti-dilutive.
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2019 |  |  | 2018 |  |  | 2019 |  |  | 2018 |
Stock options outstanding for equity incentive plans |  |  | 441,435 |  |  |  | 12,000 |  |  |  | 441,435 |  |  |  | 1,359,250 |

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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + 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 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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- Definition Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). + 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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