Note 13 - Business Segment Information - Segment Reporting Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Revenue from Contract with Customer, Excluding Assessed Tax, Total	$ 13,067	$ 18,425	$ 27,470	$ 33,033
Income (loss) before income taxes	(423)	502	(1,209)	(111)
Interest expense	(304)	(215)	(611)	(378)
Other income, net	103	148	181	216
Income (loss) before income taxes	(423)	502	(1,209)	(111)
Total Assets	78,966		78,966		$ 79,164
Operating Segments [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total	13,069	18,439	27,500	33,068
Income (loss) before income taxes	621	1,402	938	1,758
Income (loss) before income taxes	621	1,402	938	1,758
Total Assets	148,443		148,443		145,581
Intersegment Eliminations [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total	(2)	(14)	(30)	(35)
Total Assets	(69,477)		(69,477)		(66,417)
Corporate, Non-Segment [Member]
Interest expense	(293)	(196)	(590)	(348)
Other income, net	11	46	13	48
General corporate expenses	(762)	(750)	(1,570)	(1,569)
Total Assets	61,401		61,401		58,638
Waste Management Services [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total	9,088	12,902	20,221	24,336
Waste Management Services [Member] | Operating Segments [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total	9,088	12,902	20,221	24,336
Income (loss) before income taxes	807	1,221	1,855	2,221
Income (loss) before income taxes	807	1,221	1,855	2,221
Total Assets	28,465		28,465		31,574
Waste Management Services [Member] | Intersegment Eliminations [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total
Golf and Related Operations [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total	3,979	5,523	7,249	8,697
Golf and Related Operations [Member] | Operating Segments [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total	3,981	5,537	7,279	8,732
Income (loss) before income taxes	(186)	181	(917)	(463)
Income (loss) before income taxes	(186)	181	(917)	(463)
Total Assets	58,577		58,577		$ 55,369
Golf and Related Operations [Member] | Intersegment Eliminations [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total	$ 2	$ 14	$ 30	$ 35