Note 13 - Business Segment Information - Segment Reporting Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Total net operating revenues	$ 24,235	$ 23,929	$ 66,150	$ 63,178
Segment income before income taxes	1,772	867	1,685	(1,082)
Total Assets	89,118		89,118		$ 87,965
Other income, net	0	0	7	0
Waste Management Services [Member]
Total net operating revenues	11,461	11,744	36,151	34,694
Golf and Related Operations [Member]
Total net operating revenues	12,794	12,199	30,045	28,548
Operating Segments [Member]
Total net operating revenues	24,255	23,943	66,196	63,242
Segment income before income taxes	3,213	2,394	6,062	3,285
Operating Segments [Member] | Waste Management Services [Member]
Total net operating revenues	11,461	11,744	36,151	34,694
Segment income before income taxes	1,240	1,180	3,772	2,973
Total Assets	36,422		36,422		35,839
Operating Segments [Member] | Golf and Related Operations [Member]
Total net operating revenues	12,774	12,185	29,999	28,484
Segment income before income taxes	1,973	1,214	2,290	312
Total Assets	63,240		63,240		63,670
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member]
Total Assets	64,339		64,339		65,453
Corporate interest expense	(502)	(519)	(1,531)	(1,530)
Other income, net	0	0	7	0
General corporate expenses	(939)	(1,008)	(2,853)	(2,837)
Operating Segments and Corporate Non Segment [Member]
Total Assets	164,001		164,001		164,962
Intersegment Eliminations [Member]
Total net operating revenues	(20)	(14)	(46)	(64)
Total Assets	(74,883)		(74,883)		$ (76,997)
Intersegment Eliminations [Member] | Golf and Related Operations [Member]
Total net operating revenues	$ 20	$ 14	$ 46	$ 64