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Note 9 - Long-term Incentive Plan (Details) (USD $) In Millions, except Share data, unless otherwise specified | 12 Months Ended |
--- | --- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Note 9 - Long-term Incentive Plan (Details) [Line Items] |  |  |
Minimum Percentage Of Grant Date Fair Market Value For Exercise Price | 100.00%awx_MinimumPercentageOfGrantDateFairMarketValueForExercisePrice |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number (in Shares) | 760,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber | 760,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber | 760,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period | 5 years |  |
Common Class A [Member] | Avalon Holdings Corporation 2009 Long-term Incentive Plan [Member] |  |  |
Note 9 - Long-term Incentive Plan (Details) [Line Items] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in Shares) | 1,300,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized / us-gaap_PlanNameAxis = awx_AvalonHoldingsCorporation2009LongTermIncentivePlanMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember |  |
For Employees Who Are Ten Percent Shareholders [Member] |  |  |
Note 9 - Long-term Incentive Plan (Details) [Line Items] |  |  |
Minimum Percentage Of Fair Market Value For Incentive Stock Option Price | 110.00%awx_MinimumPercentageOfFairMarketValueForIncentiveStockOptionPrice / us-gaap_StatementScenarioAxis = awx_ForEmployeesWhoAreTenPercentShareholdersMember |  |
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period | 5 years |  |
For Other Employees [Member] |  |  |
Note 9 - Long-term Incentive Plan (Details) [Line Items] |  |  |
Minimum Percentage Of Fair Market Value For Incentive Stock Option Price | 100.00%awx_MinimumPercentageOfFairMarketValueForIncentiveStockOptionPrice / us-gaap_StatementScenarioAxis = awx_ForOtherEmployeesMember |  |
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period | 10 years |  |
Share-based Compensation Award, Tranche One [Member] | Avalon Holdings Corporation 2009 Long-term Incentive Plan [Member] |  |  |
Note 9 - Long-term Incentive Plan (Details) [Line Items] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period | 2 years 197 days |  |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term | 6 years 98 days |  |
Share-based Compensation Award, Tranche Two [Member] | Avalon Holdings Corporation 2009 Long-term Incentive Plan [Member] |  |  |
Note 9 - Long-term Incentive Plan (Details) [Line Items] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period | 3 years 197 days |  |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term | 6 years 281 days |  |
Share-based Compensation Award, Tranche Three [Member] | Avalon Holdings Corporation 2009 Long-term Incentive Plan [Member] |  |  |
Note 9 - Long-term Incentive Plan (Details) [Line Items] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period | 4 years 197 days |  |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term | 7 years 98 days |  |
Share-based Compensation Award, Tranche Four [Member] | Avalon Holdings Corporation 2009 Long-term Incentive Plan [Member] |  |  |
Note 9 - Long-term Incentive Plan (Details) [Line Items] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period | 5 years 197 days |  |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term | 7 years 281 days |  |
Share-based Compensation Award, Tranche Five [Member] | Avalon Holdings Corporation 2009 Long-term Incentive Plan [Member] |  |  |
Note 9 - Long-term Incentive Plan (Details) [Line Items] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period | 6 years 197 days |  |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term | 8 years 98 days |  |
Minimum [Member] | Avalon Holdings Corporation 2009 Long-term Incentive Plan [Member] |  |  |
Note 9 - Long-term Incentive Plan (Details) [Line Items] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate | 60.90%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate / us-gaap_PlanNameAxis = awx_AvalonHoldingsCorporation2009LongTermIncentivePlanMember / us-gaap_RangeAxis = us-gaap_MinimumMember |  |
Maximum [Member] | Avalon Holdings Corporation 2009 Long-term Incentive Plan [Member] |  |  |
Note 9 - Long-term Incentive Plan (Details) [Line Items] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate | 61.70%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate / us-gaap_PlanNameAxis = awx_AvalonHoldingsCorporation2009LongTermIncentivePlanMember / us-gaap_RangeAxis = us-gaap_MaximumMember |  |
Weighted Average [Member] | Avalon Holdings Corporation 2009 Long-term Incentive Plan [Member] |  |  |
Note 9 - Long-term Incentive Plan (Details) [Line Items] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate | 61.20%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate / us-gaap_PlanNameAxis = awx_AvalonHoldingsCorporation2009LongTermIncentivePlanMember / us-gaap_RangeAxis = us-gaap_WeightedAverageMember |  |
Avalon Holdings Corporation 2009 Long-term Incentive Plan [Member] |  |  |
Note 9 - Long-term Incentive Plan (Details) [Line Items] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in Shares) | 1,300,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized / us-gaap_PlanNameAxis = awx_AvalonHoldingsCorporation2009LongTermIncentivePlanMember |  |
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period | 10 years |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number (in Shares) | 760,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_PlanNameAxis = awx_AvalonHoldingsCorporation2009LongTermIncentivePlanMember |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period | 5 years |  |
Number of Years after Options Vested, Predetermined Vesting Stock Price | 3 years |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period (in Shares) | 0 us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised / us-gaap_PlanNameAxis = awx_AvalonHoldingsCorporation2009LongTermIncentivePlanMember |  |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate | 0.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate / us-gaap_PlanNameAxis = awx_AvalonHoldingsCorporation2009LongTermIncentivePlanMember |  |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Minimum | 2.06%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum / us-gaap_PlanNameAxis = awx_AvalonHoldingsCorporation2009LongTermIncentivePlanMember |  |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Maximum | 2.28%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum / us-gaap_PlanNameAxis = awx_AvalonHoldingsCorporation2009LongTermIncentivePlanMember |  |
Allocated Share-based Compensation Expense (in Dollars) | 0.1 us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_PlanNameAxis = awx_AvalonHoldingsCorporation2009LongTermIncentivePlanMember | $ 0.1 us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_PlanNameAxis = awx_AvalonHoldingsCorporation2009LongTermIncentivePlanMember |
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized (in Dollars) | 0.1 us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized / us-gaap_PlanNameAxis = awx_AvalonHoldingsCorporation2009LongTermIncentivePlanMember |  |
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition | 1 year 94 days |  |

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- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section F + Details
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- Definition Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.D.2) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section D -Subsection 2 + Details
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- Definition The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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