Note 13 - Business Segment Information - Segment Reporting Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Revenue from Contract with Customer, Excluding Assessed Tax, Total	$ 19,522	$ 16,390	$ 33,831	$ 31,503
Income (loss) before income taxes	437	739	(943)	1,470
Interest expense	(274)	(291)	(552)	(588)
Gain on debt extinguishment	0	877	0	1,964
Other income, net	119	126	183	213
Income (loss) before income taxes	437	739	(943)	1,470
Depreciation and amortization expense	842	767	1,671	1,531
Total Assets	80,392		80,392		$ 78,037
Operating Segments [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total	19,552	16,399	33,862	31,520
Income (loss) before income taxes	1,624	2,302	1,442	3,645
Income (loss) before income taxes	1,624	2,302	1,442	3,645
Total Assets	153,552		153,552		148,930
Intersegment Eliminations [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total	(30)	(9)	(31)	(17)
Total Assets	(73,160)		(73,160)		(70,893)
Corporate, Non-Segment [Member]
Interest expense	(266)	(280)	(535)	(563)
Gain on debt extinguishment	0	0	0	502
Other income, net	0	7	1	8
General corporate expenses	(921)	(1,290)	(1,851)	(2,122)
Depreciation and amortization expense	0	0	0	502
Total Assets	53,975		53,975		55,027
Waste Management Services [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total	10,717	8,685	20,056	19,835
Waste Management Services [Member] | Operating Segments [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total	10,717	8,685	20,056	19,835
Income (loss) before income taxes	1,035	676	1,689	1,819
Income (loss) before income taxes	1,035	676	1,689	1,819
Depreciation and amortization expense	0	0	0	0
Total Assets	34,779		34,779		34,203
Waste Management Services [Member] | Intersegment Eliminations [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total	0	0	0	0
Golf and Related Operations [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total	8,805	7,705	13,775	11,668
Golf and Related Operations [Member] | Operating Segments [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total	8,835	7,714	13,806	11,685
Income (loss) before income taxes	589	1,626	(247)	1,826
Income (loss) before income taxes	589	1,626	(247)	1,826
Depreciation and amortization expense	0	877	0	1,462
Total Assets	64,798		64,798		$ 59,700
Golf and Related Operations [Member] | Intersegment Eliminations [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total	$ 30	$ 9	$ 31	$ 17