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Major Customers and Export Sales - Additional Information (Detail) | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Customer One |  |  |
Segment Reporting Information [Line Items] |  |  |
Percentage of customer receivables | 21.00%avd_EntityWideTradeReceivablesMajorCustomerPercentage / us-gaap_MajorCustomersAxis = avd_CustomerOneMember | 14.00%avd_EntityWideTradeReceivablesMajorCustomerPercentage / us-gaap_MajorCustomersAxis = avd_CustomerOneMember | 20.00%avd_EntityWideTradeReceivablesMajorCustomerPercentage / us-gaap_MajorCustomersAxis = avd_CustomerOneMember
Customer Two |  |  |
Segment Reporting Information [Line Items] |  |  |
Percentage of customer receivables | 12.00%avd_EntityWideTradeReceivablesMajorCustomerPercentage / us-gaap_MajorCustomersAxis = avd_CustomerTwoMember | 10.00%avd_EntityWideTradeReceivablesMajorCustomerPercentage / us-gaap_MajorCustomersAxis = avd_CustomerTwoMember | 11.00%avd_EntityWideTradeReceivablesMajorCustomerPercentage / us-gaap_MajorCustomersAxis = avd_CustomerTwoMember
Customer Three |  |  |
Segment Reporting Information [Line Items] |  |  |
Percentage of customer receivables | 10.00%avd_EntityWideTradeReceivablesMajorCustomerPercentage / us-gaap_MajorCustomersAxis = avd_CustomerThreeMember | 8.00%avd_EntityWideTradeReceivablesMajorCustomerPercentage / us-gaap_MajorCustomersAxis = avd_CustomerThreeMember | 7.00%avd_EntityWideTradeReceivablesMajorCustomerPercentage / us-gaap_MajorCustomersAxis = avd_CustomerThreeMember
Customer Concentration Risk | Sales | Customer One |  |  |
Segment Reporting Information [Line Items] |  |  |
Percentage to company consolidated sales | 20.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueNetMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_CustomerConcentrationRiskMember / us-gaap_MajorCustomersAxis = avd_CustomerOneMember | 17.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueNetMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_CustomerConcentrationRiskMember / us-gaap_MajorCustomersAxis = avd_CustomerOneMember | 19.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueNetMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_CustomerConcentrationRiskMember / us-gaap_MajorCustomersAxis = avd_CustomerOneMember
Customer Concentration Risk | Sales | Customer Two |  |  |
Segment Reporting Information [Line Items] |  |  |
Percentage to company consolidated sales | 11.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueNetMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_CustomerConcentrationRiskMember / us-gaap_MajorCustomersAxis = avd_CustomerTwoMember | 13.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueNetMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_CustomerConcentrationRiskMember / us-gaap_MajorCustomersAxis = avd_CustomerTwoMember | 10.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueNetMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_CustomerConcentrationRiskMember / us-gaap_MajorCustomersAxis = avd_CustomerTwoMember
Customer Concentration Risk | Sales | Customer Three |  |  |
Segment Reporting Information [Line Items] |  |  |
Percentage to company consolidated sales | 8.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueNetMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_CustomerConcentrationRiskMember / us-gaap_MajorCustomersAxis = avd_CustomerThreeMember | 8.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueNetMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_CustomerConcentrationRiskMember / us-gaap_MajorCustomersAxis = avd_CustomerThreeMember | 8.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueNetMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_CustomerConcentrationRiskMember / us-gaap_MajorCustomersAxis = avd_CustomerThreeMember

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- Definition Entity Wide Trade Receivables Major Customer Percentage + References No definition available. + Details
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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13537-108611 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6404-108592 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13531-108611 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6351-108592 + Details
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- Details
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- Details
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