Note 6 - Revenues - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Revenue from Contract with Customer, Excluding Assessed Tax, Total	$ 14,309	$ 15,113
Waste Management Services [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total	9,339	11,150
Waste Management Services [Member] | Waste Brokerage And Management Services Member
Revenue from Contract with Customer, Excluding Assessed Tax, Total	8,726	10,551
Waste Management Services [Member] | Captive Landfill Management Operations [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total	613	599
Golf and Related Operations [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total	4,970	3,963
Golf and Related Operations [Member] | Food and Beverage [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total	1,665	1,341
Golf and Related Operations [Member] | Membership Dues [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total	1,714	1,607
Golf and Related Operations [Member] | Room Rental [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total	735	488
Golf and Related Operations [Member] | Green Fees and Cart Rental [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total	55	86
Golf and Related Operations [Member] | Salon and Spa Services [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total	408	167
Golf and Related Operations [Member] | Fitness and Tennis Lesson [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total	138	145
Golf and Related Operations [Member] | Other Revenue [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total	$ 255	$ 129