Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Net operating revenues:
Operating revenues	$ 14,403	$ 14,608
Costs and expenses:
Depreciation and amortization expense	699	600
Selling, general and administrative expenses	2,232	2,231
Operating loss	(557)	(518)
Other income (expense):
Interest expense	(307)	(163)
Other income, net	78	68
Loss before income taxes	(786)	(613)
Provision for income taxes	44	40
Net loss	(830)	(653)
Less net loss attributable to non-controlling interest in subsidiary	(17)	(15)
Net loss attributable to Avalon Holdings Corporation common shareholders	$ (813)	$ (638)
Loss per share attributable to Avalon Holdings Corporation common shareholders:
Basic and diluted net loss per share (in dollars per share)	$ (0.21)	$ (0.16)
Weighted average shares outstanding - basic and diluted (in shares)	3,875	3,875
Waste Management Services [Member]
Net operating revenues:
Operating revenues	$ 11,133	$ 11,434
Costs and expenses:
Operating costs	8,869	9,248
Golf and Related Operations [Member]
Net operating revenues:
Operating revenues	3,270	3,174
Costs and expenses:
Operating costs	2,632	2,532
Golf and Related Operations [Member] | Food and Beverage [Member]
Net operating revenues:
Operating revenues	1,035	1,082
Costs and expenses:
Operating costs	528	515
Golf and Related Operations [Member] | Product and Service, Other [Member]
Net operating revenues:
Operating revenues	$ 2,235	$ 2,092