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Net Income Per Share | 12 Months Ended
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Sep. 30, 2017
Earnings Per Share [Abstract] |
Net Income Per Share | 15. NET INCOME PER SHARE: The following is a reconciliation of the shares used in the denominator for calculating basic and diluted net income per share for the fiscal years ended September 30,
|  | 2015 |  |  | 2016 |  |  | 2017 |
Weighted average common shares outstanding used in calculating basic income per share |  |  | 24,466,243 |  |  |  | 24,203,947 |  |  |  | 23,966,611 |
Effect of dilutive options and non-vested restricted stock awards |  |  | 636,046 |  |  |  | 616,900 |  |  |  | 712,189 |
Weighted average common and common equivalent shares used in calculating diluted income per share |  |  | 25,102,289 |  |  |  | 24,820,847 |  |  |  | 24,678,800 |
During the fiscal years ended September 30, 2015, 2016, and 2017 there were 1,553,207, 140,521, and 18,526 weighted average shares of options outstanding, respectively, that were not included in the computation of diluted income per share because the options’ exercise prices were greater than the average market price of our common stock, and therefore, their effect would be anti-dilutive.

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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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