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Net Income Per Common Share (Tables) | 12 Months Ended
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Sep. 30, 2019
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, 2019, 2018 and 2017 is as follows (dollars in thousands, except per share amounts):
| 2019 |  |  | 2018 |  |  | 2017 |
Basic net income per common share computation |  |  |  |  |
Numerator - net income to common shareholders | $ | 24,020 |  |  | $ | 16,721 |  |  | $ | 14,167 |
Denominator - weighted average common shares outstanding | 8,318,928 |  |  | 7,334,577 |  |  | 7,136,690 |
Basic net income per common share | $ | 2.89 |  |  | $ | 2.28 |  |  | $ | 1.99 |
Diluted net income per common share computation |  |  |  |  |  |  |  |
Numerator - net income to common shareholders | $ | 24,020 |  |  | $ | 16,721 |  |  | $ | 14,167 |
Denominator - weighted average common shares outstanding | 8,318,928 |  |  | 7,334,577 |  |  | 7,136,690 |
Effect of dilutive stock options (1) | 149,298 |  |  | 191,767 |  |  | 163,773 |
Effect of dilutive stock warrant (2) | — |  |  | — |  |  | 79,590 |
Weighted average common shares outstanding-assuming dilution | 8,468,226 |  |  | 7,526,344 |  |  | 7,380,053 |
Diluted net income per common share | $ | 2.84 |  |  | $ | 2.22 |  |  | $ | 1.92 |
___________________ (1) For the years ended September 30, 2019, 2018 and 2017, average options to purchase 102,920, 29,581 and 1,117 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. (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"). The Warrant was granted on December 23, 2008 to the U.S. Treasury Department ("Treasury") as part of the Company's participation in the Treasury's Troubled Asset Relief Program. On June 12, 2013, the Treasury sold the Warrant to private investors. On January 31, 2017, the Warrant was exercised and 370,899 shares of the Company's common stock were issued in exchange for $2,496,000.

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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://fasb.org/us-gaap/role/ref/legacyRef -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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