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Summary of Business Sales Segmentation as per Product (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
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Mar. 31, 2015 | Mar. 31, 2014
Net Sales: |  |
Total crop | $ 59,521 us-gaap_SalesRevenueGoodsNet | $ 73,175 us-gaap_SalesRevenueGoodsNet
Non-crop | 7,044 avd_SalesOfNonCropProducts | 7,920 avd_SalesOfNonCropProducts
Net sales | 66,565 us-gaap_SalesRevenueNet | 81,095 us-gaap_SalesRevenueNet
Insecticides |  |
Net Sales: |  |
Total crop | 34,359 us-gaap_SalesRevenueGoodsNet / us-gaap_StatementBusinessSegmentsAxis = avd_AmountOfInsecticidesSoldMember | 46,437 us-gaap_SalesRevenueGoodsNet / us-gaap_StatementBusinessSegmentsAxis = avd_AmountOfInsecticidesSoldMember
Herbicides/Soil Fumigants/Fungicides |  |
Net Sales: |  |
Total crop | 21,840 us-gaap_SalesRevenueGoodsNet / us-gaap_StatementBusinessSegmentsAxis = avd_AmountOfHerbicidesSoldMember | 22,931 us-gaap_SalesRevenueGoodsNet / us-gaap_StatementBusinessSegmentsAxis = avd_AmountOfHerbicidesSoldMember
Other, Including Plant Growth Regulators |  |
Net Sales: |  |
Total crop | $ 3,322 us-gaap_SalesRevenueGoodsNet / us-gaap_StatementBusinessSegmentsAxis = us-gaap_AllOtherSegmentsMember | $ 3,807 us-gaap_SalesRevenueGoodsNet / us-gaap_StatementBusinessSegmentsAxis = us-gaap_AllOtherSegmentsMember

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- Definition Aggregate revenue during the period from the sale of goods in the normal course of business, after deducting returns, allowances and discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(a)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
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- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
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