Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Net operating revenues:
Operating revenues	$ 15,113	$ 14,403
Costs and expenses:
Depreciation and amortization expense	764	699
Selling, general and administrative expenses	2,280	2,232
Operating loss	(146)	(557)
Other income (expense):
Interest expense	(297)	(307)
Gain on debt extinguishment	1,087
Other income, net	87	78
Income (loss) before income taxes	731	(786)
Provision for income taxes	43	44
Net income (loss)	688	(830)
Less net loss attributable to non-controlling interest in subsidiary	(28)	(17)
Net income (loss) attributable to Avalon Holdings Corporation common shareholders	$ 716	$ (813)
Income (loss) per share attributable to Avalon Holdings Corporation common shareholders:
Basic net income (loss) per share (in dollars per share)	$ 0.18	$ (0.21)
Diluted net income (loss) per share (in dollars per share)	$ 0.18	$ (0.21)
Weighted average shares outstanding - basic (in shares)	3,899,431	3,875,431
Weighted average shares outstanding - diluted (in shares)	3,945,000	3,875,000
Waste Management Services [Member]
Net operating revenues:
Operating revenues	$ 11,150	$ 11,133
Costs and expenses:
Operating costs	8,701	8,869
Golf and Related Operations [Member]
Net operating revenues:
Operating revenues	3,963	3,270
Costs and expenses:
Operating costs	2,921	2,632
Golf and Related Operations [Member] | Food and Beverage [Member]
Net operating revenues:
Operating revenues	1,341	1,035
Costs and expenses:
Operating costs	593	528
Golf and Related Operations [Member] | Product and Service, Other [Member]
Net operating revenues:
Operating revenues	$ 2,622	$ 2,235