Document And Entity Information Statistical Measurement [Axis] Note To Financial Statement Details Textual Note 4 - Cash, Cash Equivalents and Restricted Cash Provision for income taxes Note 5 - Revenues ecd_NonRule10b51ArrTrmntdFlag Non-Rule 10b5-1 Arrangement Terminated [Flag] Note 6 - Property and Equipment Significant Non-cash Operating and Investing Activities [Abstract] ecd_NonRule10b51ArrAdoptedFlag Non-Rule 10b5-1 Arrangement Adopted [Flag] Note 7 - Leases Trading Arrangements, by Individual [Table] Note 9 - Term Loans and Line of Credit Agreements Material Terms of Trading Arrangement [Text Block] Note 11 - Long-term Incentive Plan Note 13 - Business Segment Information Note 4 - Cash, Cash Equivalents and Restricted Cash - Cash, Cash Equivalents and Restricted Cash (Details) Note 5 - Revenues - Disaggregation of Revenue (Details) Note 5 - Revenues - Allowance for Doubtful Accounts (Details) Product and Service, Other [Member] Minimum [Member] Note 5 - Revenues - Contract Assets and Liabilities (Details) Statistical Measurement [Domain] Note 6 - Property and Equipment - Summary of Property and Equipment (Details) Maximum [Member] Note 7 - Leases - Operating Leases Assets and Liabilities (Details) Note 7 - Leases - Lease Cost (Details) Note 7 - Leases - Future Commitments Under Long-term Leases (Details) us-gaap_IncreaseDecreaseInAccountsReceivable Accounts receivable Note 9 - Term Loans and Line of Credit Agreements - Summary of Term Loan and Line of Credit Agreements (Details) Note 9 - Term Loans and Line of Credit Agreements - Future Maturities of Long-term Debt (Details) Note 11 - Long-term Incentive Plan - Period and Predetermined Stock Price Needed for Vesting (Details) Note 13 - Business Segment Information - Segment Reporting Information (Details) Note 13 - Business Segment Information - Segment Reporting Asset Information (Details) Notes To Financial Statements Notes To Financial Statements [Abstract] Business Description and Basis of Presentation [Text Block] Accrued payroll and other compensation us-gaap_IncreaseDecreaseInEmployeeRelatedLiabilities Land Improvements [Member] Accrued taxes us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable us-gaap_LesseeFinanceLeaseRemainingLeaseTerm Lessee, Finance Lease, Remaining Lease Term (Year) Interest expense, net us-gaap_InterestIncomeExpenseNonoperatingNet us-gaap_LesseeOperatingLeaseRemainingLeaseTerm Lessee, Operating Lease, Remaining Lease Term awx_MembershipAgreementTerm Membership Agreement, Term The period of time for a membership agreement, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. us-gaap_IncreaseDecreaseInInventories Inventories awx_ContractTerm Contract Term (Year) The original expected length of the contract term, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. us-gaap_SharesOutstanding Balance (in shares) Balance (in shares) Captive Landfill Management Operations [Member] Represents the information pertaining to the captive landfill management operations. Green Fees and Cart Rental [Member] Represents the information pertaining to green fees and cart rentals. Segment Reporting [Text Block] Room Rental [Member] Represents the information pertaining to room rental. us-gaap_ContractualObligation Contractual Obligation Membership Dues [Member] Represents the information pertaining to membership dues. Other liabilities and accrued expenses us-gaap_IncreaseDecreaseInOtherAccruedLiabilities Reconciliation of net income (loss) to cash provided by operating activities: Award Type [Axis] Segment Reporting [Table Text Block] Unbilled Membership Dues The amount of membership dues received, but not yet billed, during the period. Plan Name [Axis] Plan Name [Domain] Segment Reporting, Reconciliation of Asset by Segment to Consolidated [Table Text Block] awx_DebtInstrumentCovenantFixedChargeCoverageRatio Debt Instrument, Covenant, Fixed Charge Coverage Ratio The fixed charge coverage ratio is required by the debt instrument. us-gaap_LiabilitiesAndStockholdersEquity Total liabilities and equity Consolidation Items [Axis] Cash and Cash Equivalent [Table] Title and Position [Axis] us-gaap_IncreaseDecreaseInPrepaidExpense Prepaid expenses Billings The amount of billings of obligation to transfer good or service to customer for which consideration from customer has been received or is due. Segment Reporting [Table] Selling, general and administrative expenses Selling, general and administrative Other Revenue [Member] Represents information pertaining to other revenues. Liabilities and Equity Consolidation Items [Domain] Lessee, Lease, Description [Table] Share-Based Payment Arrangement [Text Block] Lease Contractual Term [Axis] Lease Contractual Term [Domain] Change in operating assets and liabilities: Accounts payable us-gaap_IncreaseDecreaseInAccountsPayable us-gaap_RestrictedCash Restricted Cash us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect Increase in cash, cash equivalents and restricted cash Lessee, Operating Lease Assets and Liabilities [Table Text Block] The tabular disclosure for assets and liabilities under operating leases. awx_FinanceLeaseCostTotal Total finance lease cost Amount of total cost on financing lease. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability. us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations Cash, cash equivalents and restricted cash Cash, cash equivalents and restricted cash at beginning of period Cash, cash equivalents and restricted cash at end of period awx_LeaseLiabilityPaymentsDueYearFourTotal 2030 Amount of lessee's undiscounted obligation for lease payments, due in fourth fiscal year following latest fiscal year. Share-Based Payment Arrangement, Tranche One [Member] awx_LeaseLiabilityPaymentsDueYearTwoTotal 2028 Amount of lessee's total undiscounted obligation for lease payments, due in second fiscal year following latest fiscal year. Statement [Table] awx_LeaseLiabilityUndiscountedExcessAmountTotal Less: imputed interest Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments, total. awx_LeaseLiabilityPaymentsDueTotal Total lease payments Amount of lessee's undiscounted obligation for lease payments, due total. awx_LeaseLiabilityPaymentsDueYearThreeTotal 2029 Amount of lessee's undiscounted obligation for lease payments, due in third fiscal year following latest fiscal year. awx_LeaseLiabilityNoncurrentTotal Long-term portion of obligations under leases Present value of lessee's discounted obligation for total lease payments, classified as noncurrent. awx_LeaseLiabilityCurrentTotal Less: current portion of obligations under leases Present value of lessee's discounted obligation for total lease payments, classified as current. Share-Based Payment Arrangement, Tranche Two [Member] Prepaid expenses awx_LeaseLiabilityTotal Total Present value of lessee's discounted obligation for lease payments, total. Share-Based Payment Arrangement, Tranche Three [Member] us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability Right-of-Use Asset Obtained in Exchange for Operating Lease Liability The 2019 Term Loan Agreement [Member] Represents the name of the debt instrument, the 2019 Term Loan Agreement. us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 Debt Instrument, Basis Spread on Variable Rate us-gaap_EquityMethodInvestments Equity Method Investments us-gaap_FinanceLeasePrincipalPayments Principal payments on finance lease obligations us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity Line of Credit Facility, Maximum Borrowing Capacity us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd Line of Credit Facility, Interest Rate at Period End Outside Director, Accredited Investor [Member] Represents and outside director of Avalon. Line of Credit Facility, Lender [Domain] us-gaap_EquityMethodInvestmentOwnershipPercentage Equity Method Investment, Ownership Percentage The Line of Credit Agreement [Member] Represents the name of the debt instrument, the Line of Credit Agreement. Lender Name [Axis] us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity Line of Credit Facility, Remaining Borrowing Capacity awx_RelatedPartyTransactionPercentageOfTotalInvestment Related Party Transaction, Percentage of Total Investment Represents the percentage of total investment in Avalon Med Spa, LLC by an outside director of Avalon. Product and Service [Domain] Product and Service [Axis] us-gaap_FinanceLeaseRightOfUseAssetAccumulatedAmortization Less accumulated amortization us-gaap_LineOfCredit Long-Term Line of Credit Ownership [Axis] Ownership [Domain] Line of credit us-gaap_PropertyPlantAndEquipmentUsefulLife Property, Plant, and Equipment, Useful Life Leased property under finance leases awx_LesseeLeaseLiabilityPaymentsDueNextTwelveMonths 2027 Amount of lessee's total undiscounted obligation for lease payments, due in next fiscal year following latest fiscal year. awx_AccountsReceivableAllowanceForCreditLossWriteoffNetOfRecoveries Allowance for Credit Loss, Writeoff Amount of direct write-downs of accounts receivable charged against the allowance. Line of Credit Facility [Table] us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive Thereafter, operating lease us-gaap_RepaymentsOfDebt Repayments of Debt us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue Total lease payments, operating lease awx_LesseeLeaseLiabilityPaymentsDueAfterYearFive Thereafter Amount of lessee's total undiscounted obligation for lease payments, due after the fifth fiscal year following latest fiscal year. Lessee, Operating and Financing Leases [Text Block] The entire disclosure for operating and financing leases of lessee. Includes, but is not limited to, description of operating and financing lease and maturity analysis of operating and financing lease liability. us-gaap_FinanceLeaseWeightedAverageDiscountRatePercent Finance Lease, Weighted Average Discount Rate, Percent us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent Operating Lease, Weighted Average Discount Rate, Percent awx_LesseeLeaseLiabilityPaymentsDueYearFiveTotal 2031 Amount of lessee's undiscounted obligation for lease payments, due in fifth fiscal year following latest fiscal year. us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths 2027, operating lease us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive 2031, operating lease us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized us-gaap_ProceedsFromIssuanceOfDebt Proceeds from Issuance of Debt Schedule of Maturities of Long-Term Debt [Table Text Block] Long-term Agreement with Vehicle, Golf Course Maintenance and Restaurant Equipment [Member] Relating to long-term agreement with vehicle, golf course maintenance, and restaurant equipment. Long-term Agreement with Squaw Creek Country Club [Member] Relating to long-term agreement with Squaw Creek Country Club. Assets us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree 2029, operating lease us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo 2028, operating lease Statement [Line Items] us-gaap_LongTermDebtWeightedAverageInterestRateOverTime Long-Term Debt, Weighted Average Interest Rate, over Time us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour 2030, operating lease Award Type [Domain] Common Class B [Member] us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Rate Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Common Stock us-gaap_FinanceLeaseRightOfUseAssetAmortization Depreciation expense Schedule of Cash and Cash Equivalents [Table Text Block] Accounts payable us-gaap_FinanceLeaseLiability Total obligations under finance leases Total, finance lease us-gaap_PolicyTextBlockAbstract Accounting Policies us-gaap_DisclosureTextBlockAbstract Notes to Financial Statements us-gaap_TableTextBlock Notes Tables us-gaap_FinanceLeaseLiabilityPaymentsDueAfterYearFive Thereafter, finance lease Legal Matters and Contingencies [Text Block] Obligations under finance leases, net of current portion Long-term portion of obligations under finance leases Long-term portion of obligations under leases, finance lease us-gaap_FinanceLeaseLiabilityPaymentsDue Total lease payments, finance lease Current portion of obligations under finance leases Current portion of obligations under finance leases Less: current portion of obligations under leases, finance lease us-gaap_ProceedsFromIssuanceOfPrivatePlacement Proceeds from Issuance of Private Placement us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount Less: imputed interest, finance lease us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree 2029, finance lease us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo 2028, finance lease us-gaap_FinanceLeaseLiabilityPaymentsDueYearFive 2031, finance lease us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour 2030, finance lease Concentration Risk Type [Axis] us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths 2027, finance lease us-gaap_FinanceLeaseInterestExpense Interest expense Accrued payroll and other compensation us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount Less: imputed interest, operating lease Obligations under operating leases, net of current portion Long-term portion of obligations under operating leases us-gaap_OperatingLeaseLiability Total obligations under operating leases Total, operating lease Current portion of obligations under operating leases us-gaap_OperatingLeaseLiabilityCurrent Less: current portion of obligations under leases, operating lease Thereafter Accounts Receivable [Member] Current portion of long-term debt Less Current Portion of Long-term Debt, Net Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] Concentration Risk Type [Domain] 2028 Long-term debt, net of current portion Long-term Debt, Net, Excluding Current Maturities 2030 2029 2027 2031 awx_LesseeFinanceLeaseAnnualRent Lessee, Finance Lease, Annual Rent The amount of annual rent payment for asset under finance lease. us-gaap_LongTermDebt Term Loan Agreement, Net Statement of Stockholders' Equity [Abstract] Statement of Cash Flows [Abstract] Equity Components [Axis] Equity Component [Domain] Additional Paid-in Capital [Member] Retained Earnings [Member] Operating costs Cost of operations Property and equipment, net Property and equipment, net Property and equipment, gross Capital expenditures included in accounts payable Provision for losses on accounts receivable Noncurrent deferred tax asset, net Finance lease obligation incurred Machinery and Equipment [Member] Furniture and Fixtures [Member] Equity: Share-Based Payment Arrangement, Option [Member] awx_ContractWithCustomerLiabilityRevenueRecognizedIncludingOpeningBalance Revenue Recognized Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due. us-gaap_AccountsReceivableNet Accounts Receivable, after Allowance for Credit Loss us-gaap_LiabilitiesCurrent Total current liabilities Accounts receivable, less allowance for credit losses Customer Concentration Risk [Member] Cash paid during the period for income taxes Lease, Cost [Table Text Block] Mercer County State Bank [Member] Represents the mercer county state bank. awx_NumberOfConsecutiveRenewalTermOptions Number of Consecutive Renewal Term Options Represents the number of consecutive renewal term options. Revenue Benchmark [Member] Other Commitments [Table] us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment Less accumulated depreciation and amortization awx_DebtInstrumentInterestRateMinimumStatedPercentageAfterSevenYears Debt Instrument, Interest Rate, Minimum Stated Percentage, After Seven Years Percentage of minimum stated percentage of interest after year seven of the debt instrument. awx_DebtInstrumentInterestRateMaximumStatedPercentageAfterYearSeven Debt Instrument, Interest Rate, Maximum Stated Percentage, After Year Seven Percentage of maximum stated rate for interest after year seven of the debt instrument. Three Day Treasury Rate Two Days Prior to Reset [Member] Represents the three day treasury rate on the date two days prior to the reset date. awx_DebtInstrumentInterestRateStatedPercentageFirstSevenYears Debt Instrument, Interest Rate, Stated Percentage, First Seven Years Contractual interest rate for funds borrowed under the debt agreement for the first five years. Basis of Accounting [Text Block] Ten Percent Shareholders [Member] For employees who are ten percent shareholders. awx_MinimumPercentageOfFairMarketValueForIncentiveStockOptionPrice Minimum Percentage of Fair Market Value for Incentive Stock Option Price The minimum percentage of fair market value for incentive stock options. Income (loss) before taxes us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest Loss before income taxes Other Employees [Member] For employees who are ten percent share holders. Paid-in capital Debt Disclosure [Text Block] Non-controlling interest in subsidiaries us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1 Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period us-gaap_PaymentsToAcquirePropertyPlantAndEquipment Capital expenditures us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod1 Share-Based Compensation Arrangement by Share-Based Payment Award, Award Requisite Service Period us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners Subsidiary, Ownership Percentage, Noncontrolling Owner us-gaap_DebtInstrumentCarryingAmount Long-Term Debt, Gross Total us-gaap_MinorityInterestOwnershipPercentageByParent Noncontrolling Interest, Ownership Percentage by Parent awx_NumberOfSuspendedSaltwaterInjectionWells Number of Suspended Saltwater Injection Wells The number of suspended saltwater injection wells due to a seismic event. Avalon Holdings Corporation 2009 Long Term Incentive Plan [Member] Avalon Holdings Corporation 2009 Long-term Incentive Plan [Member] us-gaap_AssetsCurrent Total current assets awx_NumberOfGolfCourses Number of Golf Courses Represents the number of golf courses. awx_NumberOfMajorCustomers Number of Major Customers Represents the number of major customers accounting for 10% or more of the specified concentration risk benchmark, which includes, but not limited to, sales revenue, accounts receivable, etc. Predetermined Vesting Price (in dollars per share) PredeterminedVestingPrice Schedule Of Period And Predetermined Stock Price Needed For Vesting [Table Text Block] Schedule of period and predetermined stock price needed for vesting table text block. Begins Vesting Stock options begins vesting period description. awx_StockOptionsEndsVestingPeriodDescription Ends Vesting Stock options ends vesting period description. Fitness and Tennis Lesson [Member] Represents fitness and tennis lesson revenue. Debt Instrument, Name [Domain] Avalon Dermatology, LLC [Member] Represents Avalon Dermatology, LLC. One Customer [Member] Information pertaining to one customer. Operating Segments and Corporate Non Segment [Member] Represents the aggregate total of “Operating Segments” and “Corporate, Non-Segment”, before elimination and reconciliation items. Waste Management Services [Member] Represents information pertaining to the segment of waste management services. Waste Brokerage And Management Services Member Waste Brokerage and Management Services [Member] Golf and Related Operations [Member] Represents information pertaining to the segment of golf and related operations. Salon and Spa Services [Member] Represents salon and spa services. Class of Stock [Domain] Related and Nonrelated Parties [Axis] Suspended Injection Well Costs Disclosure [Text Block] The entire disclosure for parts or all of the information related to suspended injection wells. awx_NumberOfContractualCommitmentEntered Number of Contractual Commitment Entered Represents number of contractual commitment entered as of the balance sheet date. Debt Instrument [Axis] Cash flows from operating activities: Cash flows from investing activities: us-gaap_NetCashProvidedByUsedInOperatingActivities Net cash provided by operating activities Cash flows from financing activities: us-gaap_NetCashProvidedByUsedInInvestingActivities Net cash used in investing activities us-gaap_PaymentsOfDebtIssuanceCosts Payments of Debt Issuance Costs us-gaap_NetCashProvidedByUsedInFinancingActivities Net cash used in financing activities Operating Segments [Member] Accounting Policies [Abstract] Segments [Domain] Long-Term Purchase Commitment, Category of Item Purchased [Domain] Accounting Standards Update and Change in Accounting Principle [Text Block] us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent Allowance for doubtful accounts, Balance Allowance for doubtful accounts, Balance Category of Item Purchased [Axis] Segments [Axis] Corporate Segment [Member] Income Statement [Abstract] Intersegment Eliminations [Member] us-gaap_NumberOfReportableSegments Number of Reportable Segments us-gaap_NetIncomeLoss Net loss attributable to Avalon Holdings Corporation common shareholders Net Income (Loss) Attributable to Parent Total Assets awx_AssetsBeforeElimination Amount of assets, before elimination. Amortization of debt issuance costs Common Class A [Member] Income Tax Disclosure [Text Block] us-gaap_PaymentsForCapitalImprovements Payments for Capital Improvements Accounting Standards Update and Change in Accounting Principle [Table] Significant non-cash investing and financing activities: us-gaap_RelatedPartyTransactionAmountsOfTransaction Related Party Transaction, Amounts of Transaction Related and Nonrelated Parties [Domain] us-gaap_DeferredFinanceCostsNet Debt Issuance Costs, Net Term Loan Agreement, Debt Issuance Costs Related Party Transaction [Table] Asset retirement obligation Related Party Transactions Disclosure [Text Block] us-gaap_RepaymentsOfLongTermDebt Principal payments on term loan facilities Vesting [Axis] Statement of Financial Position [Abstract] Vesting [Domain] awx_LeaseholdImprovementsRequiredToBeMadePerYear Leasehold Improvements Required to be Made Per Year Represents the amount of leasehold improvements required to be made per year. us-gaap_LesseeFinanceLeaseRenewalTerm1 Lessee, Finance Lease, Renewal Term us-gaap_LesseeFinanceLeaseTermOfContract1 Lessee, Finance Lease, Term of Contract us-gaap_FinanceLeaseWeightedAverageRemainingLeaseTerm1 Finance Lease, Weighted Average Remaining Lease Term (Year) Vehicles [Member] Term Loan Agreement [Member] Represents the name of the debt instrument, the Term Loan Agreement. Laurel Capital Corporation [Member] Represents the name of the lender, Laurel Capital Corporation. us-gaap_PaymentsToMinorityShareholders Payments to Noncontrolling Interests Other assets, net us-gaap_IncreaseDecreaseInOtherOperatingAssets Other assets, net dei_DocumentType Document Type awx_DebtInstrumentPrepaymentPenaltyPercentageYearsSixAndSeven Debt Instrument, Prepayment Penalty, Percentage, Years Six and Seven The prepayment penalty expressed as a percentage of the principal of the loan being prepaid in the sixth and seventh year. awx_DebtInstrumentPrepaymentPenaltyPercentageYearsEightAndNine Debt Instrument, Prepayment Penalty, Percentage, Years Eight and Nine The prepayment penalty expressed as a percentage of the principal of the loan being prepaid in the eighth and ninth year. Document Information [Line Items] dei_DocumentQuarterlyReport Document Quarterly Report us-gaap_ConcentrationRiskPercentage1 Concentration Risk, Percentage awx_DebtInstrumentPrepaymentPenaltyPercentageFirstFiveYears Debt Instrument, Prepayment Penalty, Percentage, First Five Years The prepayment penalty expressed as a percentage of the principal of the loan being prepaid in the first five years. us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1 Operating Lease, Weighted Average Remaining Lease Term Document Information [Table] awx_DebtInstrumentPrepaymentPenaltyPercentageYearTen Debt Instrument, Prepayment Penalty, Percentage, Year Ten The prepayment penalty expressed as a percentage of the principal of the loan being prepaid in the tenth year. awx_DebtInstrumentPeriodicPaymentNumberOfPayments Debt Instrument, Periodic Payment, Number of Payments The number of the required periodic payments including both interest and principal payments. dei_EntityInteractiveDataCurrent Entity Interactive Data Current us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period dei_DocumentTransitionReport Document Transition Report awx_DebtInstrumentMaturitySchedule Debt Instrument, Maturity Schedule The maturity schedule for the debt instrument. Loss per share attributable to Avalon Holdings Corporation common shareholders: Weighted average shares outstanding - basic (in shares) Weighted Average Number of Shares Outstanding, Basic Basic net income per share (in dollars per share) Earnings Per Share, Basic, by Common Class, Including Two-Class Method [Table] Effective Income Tax Rate Reconciliation [Table] Title and Position [Domain] Office Equipment [Member] awx_LongTermDebtGrossNoncurrent Long-term Debt, Gross, Excluding Current Maturities Amount before unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Restricted cash awx_LongTermDebtGrossCurrentMaturities Less Current Portion of Long-term Debt, Gross Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Document Fiscal Period Focus Customer [Domain] Document Fiscal Year Focus Depreciation and amortization expense Investment, Name [Domain] Amendment Flag Common Stock [Member] dei_DocumentPeriodEndDate Document Period End Date Property, Plant, and Equipment [Text Block] Long-Lived Asset, Class [Domain] Legal Entity [Axis] us-gaap_OperatingLeaseCost Rental expense Construction in Progress [Member] dei_EntityFileNumber Entity File Number Entity Tax Identification Number Disaggregation of Revenue [Table Text Block] Disaggregation of Revenue [Table] Entity [Domain] Entity Central Index Key Home Savings Bank [Member] Represents the name of the lender, Home Savings Bank, formerly known as The Home Savings and Loan Company of Youngstown, Ohio. dei_EntityRegistrantName Entity Registrant Name dei_EntityCurrentReportingStatus Entity Current Reporting Status Entity Incorporation, State or Country Code Land and Land Improvements [Member] Current Fiscal Year End Date Entity Filer Category dei_EntityShellCompany Entity Shell Company Entity Emerging Growth Company Capital Addition Purchase Commitments [Member] Entity Small Business Building and Building Improvements [Member] us-gaap_OperatingIncomeLoss Operating loss us-gaap_ContractWithCustomerAssetReclassifiedToReceivable Billings us-gaap_ContractWithCustomerAssetNet Contract with Customer, Asset, after Allowance for Credit Loss Balance at Beginning of Period Balance at End of Period Costs and expenses: Net operating revenues: Entity Address, State or Province Entity Address, City or Town us-gaap_InterestExpenseNonoperating Interest expense, net Accumulated deficit Entity Address, Address Line One Unbilled membership dues receivable dei_CityAreaCode City Area Code dei_LocalPhoneNumber Local Phone Number Entity Address, Postal Zip Code Revenue from Contract with Customer [Text Block] Title of 12(b) Security Cash and Cash Equivalents Disclosure [Text Block] Security Exchange Name Trading Symbol Class of Stock [Axis] Prime Rate [Member] Variable Rate [Axis] Variable Rate [Domain] Related Party Transaction [Domain] dei_EntityCommonStockSharesOutstanding Entity Common Stock, Shares Outstanding (in shares) Related Party Transaction [Axis] Earnings Per Share [Text Block] Other current assets awx_MinimumPercentageOfFairMarketValueForNonQualifiedStockOptionPrice Minimum Percentage of Fair Market Value for Non-qualified Stock Option Price The minimum percentage of fair market value for non-qualified stock options. Less net loss attributable to non-controlling interest in subsidiaries Net Income (Loss) Attributable to Noncontrolling Interest Net income (loss) Net loss Accrued taxes Property, Plant, and Equipment [Table] Common stock, par value (in dollars per share) Investment, Name [Axis] awx_NumberOfYearsAfterOptionsVestedStockPriceReachPredeterminedVestingPrice Number Of Years After Options Vested, Stock Price Reach Predetermined Vesting Price The number of years after options vested that the predetermined vesting price must be reached. Other income (expense): Share-Based Compensation Award Tranche Four [Member] Fourth portion of share-based compensation award differentiated by a particular vesting feature, including, but not limited to, performance measure or service period. Share-Based Compensation Award Tranche Five [Member] Fifth portion of share-based compensation award differentiated by a particular vesting feature, including, but not limited to, performance measure or service period. awx_EquityMethodInvestmentsAdditional Equity Method Investments, Additional Represents additional contribution related to equity method investments. Accredited Investors [Member] Represents accredited investors. Long-Lived Asset, Class [Axis] AWMS Holdings, LLC [Member] Represents the name of the equity method investment, AWMS Holdings, LLC. Management and Accredited Investors [Member] The name or description of the related parties involved in the transaction. Investment in Subsidiary [Member] Represents the amount of the investment in the subsidiary. Total Assets us-gaap_Assets Total assets Salt Water Injection Wells [Member] The name or description of the property class. Cash and cash equivalents us-gaap_AllowanceForDoubtfulAccountsReceivable Accounts Receivable, Allowance for Credit Loss us-gaap_ContractWithCustomerLiability Contract with Customer, Liability Balance at Beginning of Period Balance at End of Period Customer [Axis] Deferred membership dues revenue us-gaap_DepreciationDepletionAndAmortization Depreciation and amortization Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Food and Beverage [Member] New Term Loan Agreement [Member] Related to the new term loan agreement. Cash paid during the period for interest Lease, Liability, Maturity [Table Text Block] Tabular disclosure of undiscounted cash flows of lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to finance lease liability recognized in statement of financial position. Avalon Med Spa [Member] Information related to Avalon Med Spa, LLC. Customer Advance Deposits [Member] Refundable consideration, usually cash, held by the entity pending satisfactory completion of the entity's obligations or pending the closing of a contract. Schedule of Long-Term Debt Instruments [Table Text Block] Deferred Membership Dues [Member] Represents information related to deferred member dues. Product [Member] us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest Total equity Balance Balance Inventories us-gaap_DeferredFinanceCostsCurrentNet Less Current Portion of Long-term Debt, Debt Issuance Costs Parent [Member] us-gaap_DeferredFinanceCostsNoncurrentNet Long-term Debt, Debt Issuance Costs, Excluding Current Maturities Noncontrolling Interest [Member] us-gaap_StockholdersEquity Total Avalon Holdings Corporation Shareholders' Equity Deferred membership dues revenue us-gaap_IncreaseDecreaseInContractWithCustomerLiability us-gaap_IncreaseDecreaseInContractWithCustomerAsset Unbilled membership dues receivable awx_IncreaseDecreaseInTotalAssets Increase (Decrease) in Total Assets The increase (decrease) during the reporting period in total assets. Concentration Risk Benchmark [Axis] Nature of Operation, Product Information, Concentration of Risk [Table] Concentration Risk Benchmark [Domain] Property and equipment under finance leases, net Leased property under finace leases, net Operating lease right-of-use assets Operating lease right-of-use assets Other liabilities and accrued expenses awx_LesseeFinanceLeaseNetAssetValueExcludingLeaseholdImprovements Lessee, Finance Lease, Net Asset Value, Excluding Leasehold Improvements Amount of net asset value, excluding leasehold improvements, of finance lease. Revenue Operating revenues Revenue from Contract with Customer, Excluding Assessed Tax ecd_Rule10b51ArrTrmntdFlag Rule 10b5-1 Arrangement Terminated [Flag] Property, Plant, and Equipment [Table Text Block] ecd_Rule10b51ArrAdoptedFlag Rule 10b5-1 Arrangement Adopted [Flag] Commitments and Contingencies