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Earnings per share | 9 Months Ended
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Sep. 30, 2017
Earnings Per Share [Abstract] |
Earnings per share | Earnings per share 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 |
For the three and nine months ended September 30, 2017 and 2016, the effects of outstanding antidilutive stock options are excluded from the computation of diluted earnings per common share because the exercise price of such options is higher than the market price. There were 13,166 and 18,100 antidilutive stock options as of September 30, 2017 and 2016, respectively.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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