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Per Share Information | 12 Months Ended
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Sep. 30, 2021
Earnings Per Share [Abstract] |
Earnings Per Share [Text Block] | 6. PER SHARE INFORMATION Basic earnings per share is calculated as income (loss) available to common stockholders, divided by the weighted average number of common shares outstanding during the period. If the effect is dilutive, participating securities are included in the computation of basic earnings per share. Our participating securities do not have a contractual obligation to share in the losses in any given period. As a result, these participating securities will not be allocated any losses in the periods of net losses, but will be allocated income in the periods of net income using the two-class method. The following table reconciles the components of the basic and diluted earnings per share for the years ended September 30, 2021, 2020 and 2019:
| Year Ended September 30,
| 2021 |  | 2020 |  | 2019
Numerator: |  |  |  |  |
Net income attributable to IES Holdings, Inc. | $ | 66,658 |  |  | $ | 41,599 |  |  | $ | 33,206 |
Increase in noncontrolling interest | (315) |  |  | (194) |  |  | — |
Net income attributable to restricted shareholders of IES Holdings, Inc. | (56) |  |  | (575) |  |  | (256) |
Net income attributable to common shareholders of IES Holdings, Inc. | $ | 66,287 |  |  | $ | 40,830 |  |  | $ | 32,950 |
Denominator: |  |  |  |  |
Weighted average common shares outstanding — basic | 20,790,307 |  |  | 20,795,892 |  |  | 21,082,012 |
Effect of dilutive stock options and non-vested securities | 296,125 |  |  | 296,518 |  |  | 233,233 |
Weighted average common and common equivalent shares outstanding — diluted | 21,086,432 |  |  | 21,092,410 |  |  | 21,315,245 |
Earnings per share attributable to common shareholders of IES Holdings, Inc.: |  |  |  |  |
Basic | $ | 3.19 |  |  | $ | 1.96 |  |  | $ | 1.56 |
Diluted | $ | 3.15 |  |  | $ | 1.94 |  |  | $ | 1.55 |
For the years ended September 30, 2021, 2020, and 2019, the average price of our common shares exceeded the exercise price of outstanding options; therefore, outstanding stock options were included in the computation of diluted earnings per share.

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