Note 5 - Revenues - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Total net operating revenues	$ 25,713	$ 21,301	$ 59,544	$ 52,804
Operating Segments [Member]
Total net operating revenues	25,738	21,316	59,600	52,836
Waste Management Services [Member]
Total net operating revenues	15,036	11,444	35,092	31,279
Waste Management Services [Member] | Operating Segments [Member]
Total net operating revenues	15,036	11,444	35,092	31,279
Waste Management Services [Member] | Waste Brokerage And Management Services Member
Total net operating revenues	14,377	10,841	33,131	29,470
Waste Management Services [Member] | Captive Landfill Management Operations [Member]
Total net operating revenues	659	603	1,961	1,809
Golf and Related Operations [Member]
Total net operating revenues	10,702	9,872	24,508	21,557
Golf and Related Operations [Member] | Operating Segments [Member]
Total net operating revenues	10,677	9,857	24,452	21,525
Golf and Related Operations [Member] | Food and Beverage [Member]
Total net operating revenues	4,077	3,984	9,305	8,608
Golf and Related Operations [Member] | Membership Dues [Member]
Total net operating revenues	1,783	1,684	5,291	4,952
Golf and Related Operations [Member] | Room Rental [Member]
Total net operating revenues	2,179	1,824	4,383	3,438
Golf and Related Operations [Member] | Green Fees and Cart Rental [Member]
Total net operating revenues	1,596	1,467	2,601	2,470
Golf and Related Operations [Member] | Salon and Spa Services [Member]
Total net operating revenues	474	319	1,360	741
Golf and Related Operations [Member] | Fitness and Tennis Lesson [Member]
Total net operating revenues	83	89	332	338
Golf and Related Operations [Member] | Other Revenue [Member]
Total net operating revenues	$ 485	$ 490	$ 1,180	$ 978