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Description of Business, Basis of Consolidation and Significant Accounting Policies - Additional Information (Detail) | 1 Months Ended | 12 Months Ended | 1 Months Ended | 12 Months Ended
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Oct. 31, 2014 USD ($) | Dec. 31, 2014 USD ($) asset_group Derivative | Dec. 31, 2013 USD ($) | Dec. 31, 2012 USD ($) | Jul. 31, 2014 TyraTech Inc. USD ($) | Jul. 31, 2014 TyraTech Inc. GBP (£) | Feb. 28, 2014 TyraTech Inc. USD ($) | Feb. 28, 2014 TyraTech Inc. GBP (£) | Dec. 31, 2014 Restricted Stock USD ($) | Dec. 31, 2013 Restricted Stock USD ($) | Dec. 31, 2012 Restricted Stock USD ($) | Dec. 31, 2014 Performance Shares USD ($) | Dec. 31, 2014 Stock Options USD ($) | Dec. 31, 2013 Stock Options | Dec. 31, 2012 Stock Options | Dec. 31, 2014 Building Minimum | Dec. 31, 2014 Building Maximum | Dec. 31, 2014 Machinery and equipment Minimum | Dec. 31, 2014 Machinery and equipment Maximum | Dec. 31, 2014 Office furniture, fixtures and equipment Minimum | Dec. 31, 2014 Office furniture, fixtures and equipment Maximum | Dec. 31, 2014 Automotive equipment Minimum | Dec. 31, 2014 Automotive equipment Maximum | Dec. 31, 2014 Construction in progress Minimum | Dec. 31, 2014 Construction in progress Maximum
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Advertising expense |  | $ 4,322,000 us-gaap_AdvertisingExpense | $ 4,011,000 us-gaap_AdvertisingExpense | $ 2,680,000 us-gaap_AdvertisingExpense |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Inventory reserve allowance |  | 3,882,000 us-gaap_InventoryValuationReserves | 2,602,000 us-gaap_InventoryValuationReserves |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment Useful Life |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10 years | 30 years | 3 years | 15 years | 3 years | 10 years | 3 years | 6 years | 3 years | 15 years
Number of Interest rate swap contract outstanding |  | 1 us-gaap_NumberOfInterestRateDerivativesHeld |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Losses in other comprehensive income expected to be reclassified to earnings |  | 0 us-gaap_DerivativeInstrumentsGainLossReclassificationFromAccumulatedOCIToIncomeEstimatedNetAmountToBeTransferred | 564,000 us-gaap_DerivativeInstrumentsGainLossReclassificationFromAccumulatedOCIToIncomeEstimatedNetAmountToBeTransferred | 689,000 us-gaap_DerivativeInstrumentsGainLossReclassificationFromAccumulatedOCIToIncomeEstimatedNetAmountToBeTransferred |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of intangible assets written down |  | 1 avd_NumberOfImpairedAssets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Impaired intangible assets, carrying value |  | 0 us-gaap_OtherIntangibleAssetsNet |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Intangible assets, impairment loss |  | 319,000 us-gaap_GoodwillAndIntangibleAssetImpairment | 0 us-gaap_GoodwillAndIntangibleAssetImpairment | 0 us-gaap_GoodwillAndIntangibleAssetImpairment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares issued by equity investee |  |  |  |  | 50,000,000 us-gaap_StockIssuedDuringPeriodSharesNewIssues / dei_LegalEntityAxis = us-gaap_EquityMethodInvesteeMember | 50,000,000 us-gaap_StockIssuedDuringPeriodSharesNewIssues / dei_LegalEntityAxis = us-gaap_EquityMethodInvesteeMember | 37,391,763 us-gaap_StockIssuedDuringPeriodSharesNewIssues / dei_LegalEntityAxis = us-gaap_EquityMethodInvesteeMember | 37,391,763 us-gaap_StockIssuedDuringPeriodSharesNewIssues / dei_LegalEntityAxis = us-gaap_EquityMethodInvesteeMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount raised by equity investee on shares issued |  | 1,666,000 us-gaap_ProceedsFromIssuanceOfCommonStock | 1,610,000 us-gaap_ProceedsFromIssuanceOfCommonStock | 3,227,000 us-gaap_ProceedsFromIssuanceOfCommonStock | 5,900,000 us-gaap_ProceedsFromIssuanceOfCommonStock / dei_LegalEntityAxis = us-gaap_EquityMethodInvesteeMember | 3,500,000 us-gaap_ProceedsFromIssuanceOfCommonStock / dei_LegalEntityAxis = us-gaap_EquityMethodInvesteeMember | 3,100,000 us-gaap_ProceedsFromIssuanceOfCommonStock / dei_LegalEntityAxis = us-gaap_EquityMethodInvesteeMember | 1,870,000 us-gaap_ProceedsFromIssuanceOfCommonStock / dei_LegalEntityAxis = us-gaap_EquityMethodInvesteeMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain from dilution of equity method investment |  | 954,000 us-gaap_GainLossOnSaleOfEquityInvestments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrants exercised amount | 500,000 avd_WarrantExercises |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrants exercised shares | 6,155,000 avd_WarrantsExercisedShares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership position in equity investment |  | 21.18%us-gaap_EquityMethodInvestmentOwnershipPercentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying value of equity investment |  | 3,172,000 us-gaap_EquityMethodInvestments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Quoted market value of equity investment |  | 3,555,000 us-gaap_EquityMethodInvestmentQuotedMarketValue |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Anti-dilutive stock options excluded from computation of diluted earning per share |  | 1,616 us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount | 0 us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount | 0 us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reduction in share based compensation expense |  | $ 247,000 avd_DecreaseInShareBasedCompensationExpense | $ 247,000 avd_DecreaseInShareBasedCompensationExpense | $ 88,000 avd_DecreaseInShareBasedCompensationExpense |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Forfeited percentage of stock |  |  |  |  |  |  |  |  | 7.30%avd_PercentageOfSharesSubjectToForfeiture / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember |  |  | 20.70%avd_PercentageOfSharesSubjectToForfeiture / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember | 4.20%avd_PercentageOfSharesSubjectToForfeiture / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember |  |  |  |  |  |  |  |  |  |  |  |
Weighted average grant-date fair values of options in period |  |  |  |  |  |  |  |  |  |  |  |  | $ 5.27 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember |  |  |  |  |  |  |  |  |  |  |  |
Option shares granted |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember | 0 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember |  |  |  |  |  |  |  |  |  |
Weighted average grant-date fair values of restricted stock grants |  |  |  |  |  |  |  |  | $ 14.81 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember | $ 30.91 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember | $ 21.51 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember | $ 14.51 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember |  |  |  |  |  |  |  |  |  |  |  |  |

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