Note 5 - Revenues - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Total net operating revenues	$ 16,068	$ 18,858
Waste Management Services [Member]
Total net operating revenues	9,677	12,470
Waste Management Services [Member] | Operating Segments [Member]
Total net operating revenues	9,677	12,470
Waste Management Services [Member] | Waste Brokerage And Management Services Member
Total net operating revenues	8,775	11,787
Waste Management Services [Member] | Captive Landfill Management Operations [Member]
Total net operating revenues	902	683
Golf and Related Operations [Member] | Operating Segments [Member]
Total net operating revenues	6,391	6,388
Golf and Related Operations [Member] | Food and Beverage [Member]
Total net operating revenues	2,024	2,011
Golf and Related Operations [Member] | Food and Beverage [Member] | Operating Segments [Member]
Total net operating revenues	2,024	2,011
Golf and Related Operations [Member] | Membership Dues [Member]
Total net operating revenues	1,833	1,974
Golf and Related Operations [Member] | Room Rental [Member]
Total net operating revenues	1,087	995
Golf and Related Operations [Member] | Green Fees and Cart Rental [Member]
Total net operating revenues	59	69
Golf and Related Operations [Member] | Salon and Spa Services [Member]
Total net operating revenues	904	799
Golf and Related Operations [Member] | Fitness and Tennis Lesson [Member]
Total net operating revenues	40	109
Golf and Related Operations [Member] | Other Revenue [Member]
Total net operating revenues	$ 444	$ 431