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Note 9 - Long-term Incentive Plan (Details Textual) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Dec. 31, 2016
Oct. 06, 2009
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number 760,000   760,000   760,000  
Avalon Holdings Corporation 2009 Long Term Incentive Plan Member            
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number 760,000   760,000      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period     5 years      
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period     10 years      
Number Of Years After Options Vested, Stock Price Reach Predetermined Vesting Price     3 years      
Allocated Share-based Compensation Expense $ 2,000 $ 6,000 $ 7,000 $ 16,000    
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized $ 34,000   $ 34,000      
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition     7 years 226 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