Note 11 - Income Taxes	3 Months Ended
Note 11 - Income Taxes	Mar. 31, 2021
Notes to Financial Statements
Income Tax Disclosure [Text Block]	Note 11. Income Taxes During the three months ended March 31, 2021, net income attributable to Avalon Holdings Corporation shareholders was $0.7 million. During the three months ended March 31, 2020, net loss attributable to Avalon Holdings Corporation shareholders was $0.8 million. Avalon recorded a state income tax provision in the three month periods ended March 31, 2021 and 2020, which was related entirely to the waste management and brokerage operations. Due to the recording of a full valuation allowance against the Company's federal net deferred tax assets, the overall effective tax rate in both periods reflects taxes owed in certain U.S state jurisdictions. Avalon's income tax on the income (loss) before taxes was offset by a change in the valuation allowance. A valuation allowance is provided when it is more likely than not that deferred tax assets relating to certain federal and state loss carryforwards will not be realized. Avalon continues to maintain a valuation allowance against the majority of its deferred tax amounts until it is evident that the deferred tax asset will be utilized in the future. On March 27, 2020, the CARES Act was enacted in response to the COVID- 19 pandemic. The CARES Act, among other things, permits net operating loss carryforwards generated in taxable years beginning after December 31, 2017, to offset 100% of taxable income for taxable years beginning before January 1, 2021, and 80% of taxable income in taxable years beginning after December 31, 2020. In addition, the CARES Act allows net operating losses incurred in taxable years beginning after December 31, 2017, and before January 1, 2021, to be carried back to each of the five preceding taxable years to generate a refund of previously paid income taxes. The adoption of these provisions did not have a material impact on the Company's financial position or results of operations. On December 27, 2020, the Consolidated Appropriations Act, 2021 (the “Appropriations Act”) was enacted in response to the COVID- 19 pandemic. The Appropriations Act, among other things, temporarily extends through December 31, 2025, certain expiring tax provisions, including look-through treatment of payments of dividends, interest, rents, and royalties received or accrued from related controlled foreign corporations. Additionally, the Appropriations Act enacts new provisions and extends certain provisions originated within the CARES Act, including an extension of time for repayment of the deferred portion of employees' payroll tax through December 31, 2021, and a temporary allowance for full deduction of certain business meals. Avalon has elected not to defer the employees' portion of payroll tax. Management is currently evaluating the other provisions of the Appropriations Act, but at present time does not expect that the other provisions of the Appropriations Act would result in a material tax or cash benefit.

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.