Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Net operating revenues:
Operating revenues	$ 16,390	$ 13,067	$ 31,503	$ 27,470
Costs and expenses:
Depreciation and amortization expense	767	712	1,531	1,411
Selling, general and administrative expenses	2,536	1,927	4,816	4,159
Operating income (loss)	27	(222)	(119)	(779)
Other income (expense):
Interest expense	(291)	(304)	(588)	(611)
Gain on debt extinguishment	877	0	1,964	0
Other income, net	126	103	213	181
Income (loss) before income taxes	739	(423)	1,470	(1,209)
Provision for income taxes	15	24	58	68
Net income (loss)	724	(447)	1,412	(1,277)
Less net loss attributable to non-controlling interest in subsidiary	(18)	(12)	(46)	(29)
Net income (loss) attributable to Avalon Holdings Corporation common shareholders	$ 742	$ (435)	$ 1,458	$ (1,248)
Basic net income (loss) per share (in dollars per share)	$ 0.19	$ (0.11)	$ 0.37	$ (0.32)
Diluted net income (loss) per share (in dollars per share)	$ 0.19	$ (0.11)	$ 0.37	$ (0.32)
Weighted average shares outstanding - basic (in shares)	3,899,431	3,875,431	3,899,431	3,875,431
Weighted average shares outstanding - diluted (in shares)	3,928,971	3,875,000	3,936,854	3,875,000
Waste Management Services [Member]
Net operating revenues:
Operating revenues	$ 8,685	$ 9,088	$ 19,835	$ 20,221
Costs and expenses:
Operating costs	6,969	7,211	15,670	16,080
Golf and Related Operations [Member]
Net operating revenues:
Operating revenues	7,705	3,979	11,668	7,249
Costs and expenses:
Operating costs	4,743	2,875	7,664	5,507
Golf and Related Operations [Member] | Food and Beverage [Member]
Net operating revenues:
Operating revenues	3,283	1,361	4,624	2,396
Costs and expenses:
Operating costs	1,348	564	1,941	1,092
Golf and Related Operations [Member] | Product and Service, Other [Member]
Net operating revenues:
Operating revenues	$ 4,422	$ 2,618	$ 7,044	$ 4,853