Note 13 - Business Segment Information - Segment Reporting Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Segment income before income taxes	$ (181)	$ 437	$ (1,949)	$ (943)
Total Assets	91,357		91,357		$ 89,750
Total net operating revenues	20,621	19,522	38,995	33,831
Corporate interest expense	(529)	(274)	(1,044)	(552)
Corporate other income, net	205	119	286	183
Operating Segments [Member]
Segment income before income taxes	1,237	1,624	891	1,442
Total net operating revenues	20,638	19,552	39,021	33,862
Corporate, Non-Segment [Member]
Total Assets	65,639		65,639		65,630
Corporate interest expense	(521)	(266)	(1,029)	(535)
Corporate other income, net	11	0	11	1
General corporate expenses	(908)	(921)	(1,822)	(1,851)
Segment Reconciling Items [Member]
Total Assets	167,532		167,532		164,183
Intersegment Eliminations [Member]
Total Assets	(76,175)		(76,175)		(74,433)
Total net operating revenues	(17)	(30)	(26)	(31)
Waste Management Services [Member]
Total net operating revenues	10,298	10,717	22,950	20,056
Waste Management Services [Member] | Operating Segments [Member]
Segment income before income taxes	844	1,035	1,793	1,689
Total Assets	35,952		35,952		35,198
Total net operating revenues	10,298	10,717	22,950	20,056
Golf and Related Operations [Member]
Total net operating revenues	10,340	8,835	16,071	13,806
Golf and Related Operations [Member] | Operating Segments [Member]
Segment income before income taxes	393	589	(902)	(247)
Total Assets	65,941		65,941		$ 63,355
Total net operating revenues	10,323	8,805	16,045	13,775
Golf and Related Operations [Member] | Intersegment Eliminations [Member]
Total net operating revenues	$ 17	$ 30	$ 26	$ 31