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Net Income Per Common Share | 12 Months Ended
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Sep. 30, 2020
Earnings Per Share [Abstract] |
Net Income Per Common Share | Net Income Per Common Share Information regarding the calculation of basic and diluted net income per common share for the years ended September 30, 2020, 2019 and 2018 is as follows (dollars in thousands, except per share amounts):
| 2020 |  | 2019 |  | 2018
Basic net income per common share computation |  |  |  |  |
Numerator - net income | $ | 24,269 |  |  | $ | 24,020 |  |  | $ | 16,721 |
Denominator - weighted average common shares outstanding | 8,326,600 |  |  | 8,318,928 |  |  | 7,334,577 |
Basic net income per common share | $ | 2.91 |  |  | $ | 2.89 |  |  | $ | 2.28 |
Diluted net income per common share computation |  |  |  |  |
Numerator - net income | $ | 24,269 |  |  | $ | 24,020 |  |  | $ | 16,721 |
Denominator - weighted average common shares outstanding | 8,326,600 |  |  | 8,318,928 |  |  | 7,334,577 |
Effect of dilutive stock options (1) | 95,886 |  |  | 149,298 |  |  | 191,767 |
Weighted average common shares outstanding-assuming dilution | 8,422,486 |  |  | 8,468,226 |  |  | 7,526,344 |
Diluted net income per common share | $ | 2.88 |  |  | $ | 2.84 |  |  | $ | 2.22 |
___________________ (1) For the years ended September 30, 2020, 2019 and 2018, average options to purchase 131,186, 102,920 and 29,581 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.

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