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Net Income Per Common Share (Tables) | 12 Months Ended
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Sep. 30, 2017
Earnings Per Share [Abstract] |
Schedule of Calculation of Numerator and Denominator in Earnings Per Share | Information regarding the calculation of basic and diluted net income per common share for the years ended September 30, 2017, 2016 and 2015 is as follows (dollars in thousands, except per share amounts):
| 2017 |  |  | 2016 |  |  | 2015 |
Basic net income per common share computation |  |  |  |  |
Numerator - net income to common shareholders | $ | 14,167 |  |  | $ | 10,154 |  |  | $ | 8,292 |
Denominator - weighted average common shares outstanding | 7,136,690 |  |  | 6,842,614 |  |  | 6,897,270 |
Basic net income per common share | $ | 1.99 |  |  | $ | 1.48 |  |  | $ | 1.20 |
Diluted net income per common share computation |  |  |  |  |  |  |  |
Numerator - net income to common shareholders | $ | 14,167 |  |  | $ | 10,154 |  |  | $ | 8,292 |
Denominator - weighted average common shares outstanding | 7,136,690 |  |  | 6,842,614 |  |  | 6,897,270 |
Effect of dilutive stock options (1) | 163,773 |  |  | 78,910 |  |  | 36,863 |
Effect of dilutive stock warrant (2) | 79,590 |  |  | 183,825 |  |  | 134,955 |
Weighted average common shares outstanding-assuming dilution | 7,380,053 |  |  | 7,105,349 |  |  | 7,069,088 |
Diluted net income per common share | $ | 1.92 |  |  | $ | 1.43 |  |  | $ | 1.17 |

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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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