Note 13 - Business Segment Information - Segment Reporting Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Segment income before income taxes	$ 927	$ (181)	$ (87)	$ (1,949)
Total Assets	91,725		91,725		$ 87,965
Total net operating revenues	23,057	20,826	41,915	39,281
Other income, net	0	0	7	0
Waste Management Services [Member]
Total net operating revenues	12,220	10,298	24,690	22,950
Golf and Related Operations [Member]
Total net operating revenues	10,859	10,545	17,251	16,381
Operating Segments [Member]
Segment income before income taxes	2,379	1,237	2,849	891
Total net operating revenues	23,079	20,843	41,941	39,331
Operating Segments [Member] | Waste Management Services [Member]
Segment income before income taxes	1,311	844	2,532	1,793
Total Assets	37,716		37,716		35,839
Total net operating revenues	12,220	10,298	24,690	22,950
Operating Segments [Member] | Golf and Related Operations [Member]
Segment income before income taxes	1,068	393	317	(902)
Total Assets	64,389		64,389		63,670
Total net operating revenues	10,837	10,528	17,225	16,331
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member]
Total Assets	65,818		65,818		65,453
Corporate interest expense	(529)	(521)	(1,028)	(1,044)
Other income, net	0	11	0	11
General corporate expenses	(923)	(908)	(1,908)	(1,807)
Operating Segments and Corporate Non Segment [Member]
Total Assets	167,923		167,923		164,962
Intersegment Eliminations [Member]
Total Assets	(76,198)		(76,198)		$ (76,997)
Total net operating revenues	(22)	(17)	(26)	(50)
Intersegment Eliminations [Member] | Golf and Related Operations [Member]
Total net operating revenues	$ 22	$ 17	$ 26	$ 50