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Earnings per share (Tables) | 9 Months Ended
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Sep. 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 nine month periods ended September 30, 2017 and September 30, 2016.
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2017 |  | 2016 |  | 2017 |  | 2016
Net income available to common shareholders | $ | 1,684,869 |  |  | $ | 1,340,892 |  |  | $ | 4,782,007 |  |  | $ | 3,399,385 |
Weighted average common shares outstanding | 8,234,783 |  |  | 5,834,520 |  |  | 7,994,661 |  |  | 5,820,834 |
Effect of dilutive stock options | 97,897 |  |  | 261,813 |  |  | 91,685 |  |  | 271,201 |
Diluted shares | 8,332,680 |  |  | 6,096,333 |  |  | 8,086,346 |  |  | 6,092,035 |
Basic earnings per common share | $ | 0.20 |  |  | $ | 0.23 |  |  | $ | 0.60 |  |  | $ | 0.58 |
Diluted earnings per common share | $ | 0.20 |  |  | $ | 0.22 |  |  | $ | 0.59 |  |  | $ | 0.56 |

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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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