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Earnings Per Share (Tables) | 3 Months Ended
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Mar. 31, 2018
Earnings Per Share [Abstract] |
Components of Basic and Diluted Net Income per Common Share | The components of basic and diluted net income per common share available to common stockholders for the three-month period ended March 31, 2018 and 2017 were as follows:
| Three months ended March 31,
| 2018 |  | 2017
Basic Net Income per Common Share |  |  |
Available to Common Stockholders: |  |  |
Net income | $ | 8,390,000 |  |  | $ | 6,264,000 |
Weighted average common shares outstanding | 12,671,017 |  | 12,475,728
Basic earnings per common share | $ | 0.66 |  |  | $ | 0.50 |
Diluted Net Income per Common Share |  |  |
Available to Common Stockholders: |  |  |
Net income applicable to diluted earnings per share | $ | 8,390,000 |  |  | $ | 6,264,000 |
Weighted average common shares outstanding | 12,671,017 |  |  | 12,475,728 |
Dilutive potential common shares: |  |  |
Assumed conversion of stock options | 3,980 |  |  | 9,179 |
Restricted stock awarded | 13,250 |  |  | 836 |
Assumed conversion of preferred stock | — |  |  | — |
Dilutive potential common shares | 17,230 |  |  | 10,015 |
Diluted weighted average common shares outstanding | 12,688,247 |  |  | 12,485,743 |
Diluted earnings per common share | $ | 0.66 |  |  | $ | 0.50 |
Anti-dilutive Securities | There were no shares not considered in computing diluted earnings per share for the three-month periods ended March 31, 2018 and 2017 because they were anti-dilutive.

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