Note 13 - Business Segment Information - Segment Reporting Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Total Assets	$ 92,751		$ 89,750
Total net operating revenues	18,375	$ 14,309
Income (loss) before income taxes	(1,768)	(1,380)
Corporate interest expense	(515)	(278)
Other income, net	81	64
Waste Management Services [Member]
Total net operating revenues	12,652	9,339
Golf and Related Operations [Member]
Total net operating revenues	5,732	4,973
Operating Segments [Member]
Total Assets	169,278		164,183
Total net operating revenues	18,384	14,312
Income (loss) before income taxes	(343)	(182)
Operating Segments [Member] | Waste Management Services [Member]
Total Assets	37,608		35,198
Total net operating revenues	12,652	9,339
Income (loss) before income taxes	949	654
Operating Segments [Member] | Golf and Related Operations [Member]
Total Assets	66,164		63,355
Total net operating revenues	5,723	4,970
Income (loss) before income taxes	(1,292)	(836)
Corporate, Non-Segment [Member]
Total Assets	65,506		65,630
Corporate interest expense	(508)	(269)
Other income, net	12	1
General corporate expenses	(929)	(930)
Intersegment Eliminations [Member]
Total Assets	(76,527)		$ (74,433)
Total net operating revenues	(9)	(3)
Intersegment Eliminations [Member] | Waste Management Services [Member]
Total net operating revenues	0	0
Intersegment Eliminations [Member] | Golf and Related Operations [Member]
Total net operating revenues	$ 9	$ 3