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Earnings per share (Tables) | 6 Months Ended
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Jun. 30, 2017
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted | The following is a summary of the basic and diluted earnings per share for the three and six month periods ended June 30, 2017 and June 30, 2016.
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2017 |  | 2016 |  | 2017 |  | 2016
Net income available to common shareholders | $ | 1,648,286 |  |  | $ | 921,630 |  |  | $ | 3,097,138 |  |  | $ | 2,058,493 |
Weighted average common shares outstanding | 8,216,567 |  |  | 5,820,342 |  |  | 7,872,609 |  |  | 5,813,915 |
Effect of dilutive stock options | 108,971 |  |  | 311,478 |  |  | 104,673 |  |  | 304,615 |
Diluted shares | 8,325,538 |  |  | 6,131,820 |  |  | 7,977,282 |  |  | 6,118,530 |
Basic earnings per common share | $ | 0.20 |  |  | $ | 0.16 |  |  | $ | 0.39 |  |  | $ | 0.35 |
Diluted earnings per common share | $ | 0.20 |  |  | $ | 0.15 |  |  | $ | 0.39 |  |  | $ | 0.34 |

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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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