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Earnings Per Share (Tables) | 12 Months Ended
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Dec. 31, 2020
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 years ended December 31, 2020, 2019 and 2018 were as follows:
|  | 2020 |  |  | 2019 |  |  | 2018 |
Basic Net Income per Common Share Available to Common Stockholders: |  |  |  |  |  |  |  |  |  |  |  |
Net income available to common stockholders |  |  | 45,270,000 |  |  |  | 47,943,000 |  |  |  | 36,600,000 |
Weighted average common shares outstanding |  |  | 16,716,880 |  |  |  | 16,675,269 |  |  |  | 14,487,126 |
Basic earnings per common share |  | $ | 2.71 |  |  | $ | 2.88 |  |  | $ | 2.53 |
Diluted Net Income per Common Share Available to Common Stockholders: |  |  |  |  |  |  |  |  |  |  |  |
Net income available to common stockholders |  | $ | 45,270,000 |  |  | $ | 47,943,000 |  |  | $ | 36,600,000 |
Weighted average common shares outstanding |  |  | 16,716,880 |  |  |  | 16,675,269 |  |  |  | 14,487,126 |
Dilutive potential common shares: |  |  |  |  |  |  |  |  |  |  |  |
Assumed conversion of stock options |  |  | — |  |  |  | — |  |  |  | 209 |
Restricted stock awarded |  |  | 45,976 |  |  |  | 34,207 |  |  |  | 13,250 |
Dilutive potential common shares |  |  | 45,976 |  |  |  | 34,207 |  |  |  | 13,459 |
Diluted weighted average common shares outstanding |  |  | 16,762,856 |  |  |  | 16,709,476 |  |  |  | 14,500,585 |
Diluted earnings per common share |  | $ | 2.70 |  |  | $ | 2.87 |  |  | $ | 2.52 |

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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/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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