Note 10 - Income Taxes	6 Months Ended
Note 10 - Income Taxes	Jun. 30, 2020
Notes to Financial Statements
Income Tax Disclosure [Text Block]	Note 10 . Income Taxes During the three month period ended June 30, 2020, net loss attributable to Avalon Holdings Corporation shareholders was $0.4 million compared to net income attributable to Avalon Common shareholders of $0.5 million for the three month period ended June 30, 2019. During the six month periods ended June 30, 2020 and 2019, net loss attributable to Avalon Holdings Corporation shareholders was $1.2 million and $0.2 million, respectively. Avalon recorded a state income tax provision in both the three and six month periods ended June 30, 2020 and 2019, 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 NOL 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 Company is currently evaluating the full impact of these provisions and recent IRS guidance, and we expect that it will not have a material impact on the Company's financial position or results of operations.

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.