Note 13 - Business Segment Information - Segment Reporting Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Segment income before income taxes	$ 867	$ 1,127	$ (1,082)	$ 184
Total Assets	90,048		90,048		$ 89,750
Total net operating revenues	23,903	25,713	62,898	59,544
Corporate interest expense	(530)	(408)	(1,573)	(960)
Corporate other income, net	37	22	323	205
Operating Segments [Member]
Segment income before income taxes	2,394	2,677	3,285	4,119
Total net operating revenues	23,917	25,738	62,962	59,600
Corporate, Non-Segment [Member]
Total Assets	62,894		62,894		65,630
Corporate interest expense	(530)	(402)	(1,573)	(937)
Corporate other income, net	12	0	35	1
General corporate expenses	(1,009)	(1,148)	(2,829)	(2,999)
Segment Reconciling Items [Member]
Total Assets	164,667		164,667		164,183
Intersegment Eliminations [Member]
Total Assets	(74,619)		(74,619)		(74,433)
Total net operating revenues	(14)	(25)	(64)	(56)
Waste Management Services [Member]
Total net operating revenues	11,744	15,036	34,694	35,092
Waste Management Services [Member] | Operating Segments [Member]
Segment income before income taxes	1,180	1,454	2,973	3,143
Total Assets	36,929		36,929		35,198
Total net operating revenues	11,744	15,036	34,694	35,092
Golf and Related Operations [Member]
Total net operating revenues	12,173	10,702	28,268	24,508
Golf and Related Operations [Member] | Operating Segments [Member]
Segment income before income taxes	1,214	1,223	312	976
Total Assets	64,844		64,844		$ 63,355
Total net operating revenues	12,159	10,677	28,204	24,452
Golf and Related Operations [Member] | Intersegment Eliminations [Member]
Total net operating revenues	$ 14	$ 25	$ 64	$ 56