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Cash Dividend | 6 Months Ended
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Jun. 30, 2018
Cash Dividends [Abstract] |
Cash Dividend | 7. The Company has declared and paid the following cash dividends in the periods covered by this Form 10-Q:
Declaration Date |  | Record Date |  | Distribution Date |  | Dividend Per Share |  |  | Total Paid |
June 11, 2018 |  | June 28, 2018 |  | July 12, 2018 |  | $ | 0.020 |  |  | $ | 587 |
March 8, 2018 |  | March 30, 2018 |  | April 13, 2018 |  | $ | 0.020 |  |  | $ | 586 |
December 12, 2017 |  | December 27, 2017 |  | January 10, 2018 |  | $ | 0.015 |  |  | $ | 438 |

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- Definition Cash dividends. + References No definition available. + Details
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- Definition Information related to cash dividends declared during the reporting period and paid on the indicated date. + References No definition available. + Details
Name: | avd_CashDividendsTextBlock
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Data Type: | nonnum:textBlockItemType
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Period Type: | duration