Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Net operating revenues:
Operating revenues	$ 16,705	$ 14,577	$ 28,221	$ 25,279
Costs and expenses:
Depreciation and amortization expense	726	761	1,455	1,509
Selling, general and administrative expenses	2,215	2,063	4,440	4,065
Operating income (loss)	596	109	(188)	(792)
Other income (expense):
Interest expense	(174)	(177)	(345)	(352)
Other income, net	113	109	173	186
Income (loss) before income taxes	535	41	(360)	(958)
Provision for income taxes	41	32	60	52
Net income (loss)	494	9	(420)	(1,010)
Less net loss attributable to non-controlling interest in subsidiary	(129)	(112)	(244)	(205)
Net income (loss) attributable to Avalon Holdings Corporation common shareholders	$ 623	$ 121	$ (176)	$ (805)
Income (loss) per share attributable to Avalon Holdings Corporation common shareholders:
Basic net income (loss) per share (in dollars per share)	$ 0.16	$ 0.03	$ (0.05)	$ (0.21)
Diluted net income (loss) per share (in dollars per share)	$ 0.16	$ 0.03	$ (0.05)	$ (0.21)
Weighted average shares outstanding - basic (in shares)	3,803,000	3,803,000	3,803,331	3,803,331
Weighted average shares outstanding - diluted (in shares)	3,817,781	3,826,920	3,803,000	3,803,000
Waste Management Services [Member]
Net operating revenues:
Operating revenues	$ 11,510	$ 9,490	$ 19,968	$ 17,103
Costs and expenses:
Operating costs	9,090	7,533	15,752	13,427
Golf and Related Operations [Member]
Net operating revenues:
Operating revenues	5,195	5,087	8,253	8,176
Costs and expenses:
Operating costs	3,146	3,150	5,363	5,556
Golf and Related Operations [Member] | Food and Beverage [Member]
Net operating revenues:
Operating revenues	2,206	2,270	3,246	3,376
Costs and expenses:
Operating costs	932	961	1,399	1,514
Golf and Related Operations [Member] | Product and Service, Other [Member]
Net operating revenues:
Operating revenues	$ 2,989	$ 2,817	$ 5,007	$ 4,800