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Net Income Per Share | 9 Months Ended
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Jun. 30, 2023
Earnings Per Share [Abstract] |
Net Income Per Share | 15. NET INCOME PER SHARE: The following table presents shares used in the calculation of basic and diluted net income per share:
| Three Months Ended |  |  | Nine Months Ended |
| June 30, |  |  | June 30, |
| 2022 |  |  | 2023 |  |  | 2022 |  |  | 2023 |
Weighted average common shares outstanding used in calculating basic net income per share |  | 21,524,315 |  |  |  | 21,885,400 |  |  |  | 21,761,811 |  |  |  | 21,831,350 |
Effect of dilutive options and non-vested restricted stock awards |  | 648,958 |  |  |  | 542,043 |  |  |  | 694,017 |  |  |  | 489,919 |
Weighted average common and common equivalent shares used in calculating diluted net income per share |  | 22,173,273 |  |  |  | 22,427,443 |  |  |  | 22,455,828 |  |  |  | 22,321,269 |
For the three months ended June 30, 2022 and 2023, there were 89,518 and 11,089 weighted average shares of options and non-vested restricted stock outstanding, respectively, that were not included in the computation of diluted net income per share because the options’ exercise prices or non-vested restricted stock prices were greater than the average market price of our common stock, and therefore, their effect would be anti-dilutive. For the nine months ended June 30, 2022 and 2023, there were 71,455 and 12,639 weighted average shares of options and non-vested restricted stock outstanding, respectively, that were not included in the computation of diluted net income per share because the options’ exercise prices or non-vested restricted stock prices were greater than the average market price of our common stock, and therefore, their effect would be anti-dilutive.

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