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Earnings Per Share (Tables) | 6 Months Ended
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Jun. 30, 2018
Earnings Per Share [Abstract] |
Components of Basic and Diluted Earnings Per Share | The components of basic and diluted earnings per share were as follows:
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
|  | 2018 |  |  | 2017 |  |  | 2018 |  |  | 2017 |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income attributable to AVD |  | $ | 5,599 |  |  | $ | 4,304 |  |  | $ | 10,254 |  |  | $ | 7,756 |
Denominator: (in thousands) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average shares outstanding-basic |  |  | 29,330 |  |  |  | 29,050 |  |  |  | 29,309 |  |  |  | 28,999 |
Dilutive effect of stock options and grants |  |  | 860 |  |  |  | 555 |  |  |  | 804 |  |  |  | 562 |
|  |  | 30,190 |  |  |  | 29,605 |  |  |  | 30,113 |  |  |  | 29,561 |

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