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Net Income Per Common Share (Tables) | 6 Months Ended
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Mar. 31, 2018
Earnings Per Share [Abstract] |
Schedule of Earnings per Share | Information regarding the calculation of basic and diluted net income per common share for the three and six months ended March 31, 2018 and 2017 is as follows (dollars in thousands, except per share amounts):
| Three Months Ended March 31, |  | Six Months Ended March 31,
| 2018 |  |  | 2017 |  |  | 2018 |  |  | 2017 |
Basic net income per common share computation |  |  |  |  |  |  |
Numerator – net income | $ | 4,269 |  |  | $ | 3,128 |  |  | $ | 7,883 |  |  | $ | 6,275 |
Denominator – weighted average common shares outstanding | 7,328,127 |  |  | 7,135,083 |  |  | 7,320,243 |  |  | 6,997,420 |
Basic net income per common share | $ | 0.58 |  |  | $ | 0.44 |  |  | $ | 1.08 |  |  | $ | 0.90 |
Diluted net income per common share computation |  |  |  |  |  |  |  |  |
Numerator – net income | $ | 4,269 |  |  | $ | 3,128 |  |  | $ | 7,883 |  |  | $ | 6,275 |
Denominator – weighted average common shares outstanding | 7,328,127 |  |  | 7,135,083 |  |  | 7,320,243 |  |  | 6,997,420 |
Effect of dilutive stock options (1) | 183,931 |  |  | 159,947 |  |  | 189,849 |  |  | 149,608 |
Effect of dilutive stock warrant (2) | — |  |  | 84,323 |  |  | — |  |  | 159,616 |
Weighted average common shares outstanding - assuming dilution | 7,512,058 |  |  | 7,379,353 |  |  | 7,510,092 |  |  | 7,306,644 |
Diluted net income per common share | $ | 0.57 |  |  | $ | 0.42 |  |  | $ | 1.05 |  |  | $ | 0.86 |
____________________________________________ (1) For the three and six months ended March 31, 2018, average options to purchase 58,000 and 58,063 shares of common stock, respectively, were outstanding but not included in the computation of diluted net income per common share because their effect would have been anti-dilutive. For the three and six months ended March 31, 2017, all outstanding options were included in the computation of diluted net income per share. (2) Represented a warrant to purchase 370,899 shares of the Company's common stock at an exercise price of $6.73 per share (subject to anti-dilution adjustments) at any time through December 23, 2018 (the "Warrant"). On January 31, 2017, the Warrant was exercised and 370,899 shares of the Company's common stock were issued in exchange for $2.50 million.

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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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