The minimum percentage of fair market value for incentive stock options.

No definition available.

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- Definition

The minimum percentage of fair market value for non-qualified stock options.

+ References

No definition available.

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- Definition

The number of years after options vested that the predetermined vesting price must be reached.

+ References

No definition available.

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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.

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- Definition

Unrecognized cost of unvested share-based compensation awards.

+ References

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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

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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

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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

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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

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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

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- Definition

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

+ References

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- Definition

Number of options outstanding, including both vested and non-vested options.

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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

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- Definition

Number of share options (or share units) exercised during the current period.

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Note 12 - Long-term Incentive Plan (Details Textual) - USD ($)	11 Months Ended	12 Months Ended
	Nov. 30, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Oct. 06, 2009
Minimum Percentage of Fair Market Value for Non-qualified Stock Option Price		100.00%
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Ending Balance		688,000	760,000	760,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period		72,000
Allocated Share-based Compensation Expense, Total		$ 6,000	$ 12,000
Ten Percent Shareholders [Member]
Minimum Percentage of Fair Market Value for Incentive Stock Option Price		110.00%
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period		10 years
Other Employees [Member]
Minimum Percentage of Fair Market Value for Incentive Stock Option Price		100.00%
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period		5 years
Avalon Holdings Corporation 2009 Long Term Incentive Plan Member
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, Ending Balance		688,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	72,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period		5 years
Number Of Years After Options Vested, Stock Price Reach Predetermined Vesting Price		3 years
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate		0.00%
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value		$ 154,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Total		$ 23,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition		5 years 153 days
Avalon Holdings Corporation 2009 Long Term Incentive Plan Member \| Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period		1 year
Avalon Holdings Corporation 2009 Long Term Incentive Plan Member \| Employee Stock Option [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period		180 days
Avalon Holdings Corporation 2009 Long Term Incentive Plan Member \| Common Class A [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized					1,300,000