Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Net operating revenues:
Operating revenues	$ 13,067	$ 18,425	$ 27,470	$ 33,033
Costs and expenses:
Depreciation and amortization expense	712	618	1,411	1,218
Selling, general and administrative expenses	1,927	2,380	4,159	4,611
Operating income (loss)	(222)	569	(779)	51
Other income (expense):
Interest expense	(304)	(215)	(611)	(378)
Other income, net	103	148	181	216
Income (loss) before income taxes	(423)	502	(1,209)	(111)
Provision for income taxes	24	57	68	97
Net income (loss)	(447)	445	(1,277)	(208)
Less net loss attributable to non-controlling interest in subsidiary	(12)	(34)	(29)	(49)
Net income (loss) attributable to Avalon Holdings Corporation common shareholders	$ (435)	$ 479	$ (1,248)	$ (159)
Income (loss) per share attributable to Avalon Holdings Corporation common shareholders:
Basic net income (loss) per share (in dollars per share)	$ (0.11)	$ 0.12	$ (0.32)	$ (0.04)
Diluted net income (loss) per share (in dollars per share)	$ (0.11)	$ 0.12	$ (0.32)	$ (0.04)
Weighted average shares outstanding - basic (in shares)	3,875,431	3,875,431	3,875,000	3,875,431
Weighted average shares outstanding - diluted (in shares)	3,875,000	3,894,000	3,875,000	3,875,000
Waste Management Services [Member]
Net operating revenues:
Operating revenues	$ 9,088	$ 12,902	$ 20,221	$ 24,336
Costs and expenses:
Operating costs	7,211	10,296	16,080	19,544
Golf and Related Operations [Member]
Net operating revenues:
Operating revenues	3,979	5,523	7,249	8,697
Costs and expenses:
Operating costs	2,875	3,563	5,507	6,095
Golf and Related Operations [Member] | Food and Beverage [Member]
Net operating revenues:
Operating revenues	1,361	2,358	2,396	3,440
Costs and expenses:
Operating costs	564	999	1,092	1,514
Golf and Related Operations [Member] | Product and Service, Other [Member]
Net operating revenues:
Operating revenues	$ 2,618	$ 3,165	$ 4,853	$ 5,257