Note 13 - Business Segment Information - Segment Reporting Information (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Revenue from Contract with Customer, Excluding Assessed Tax, Total	$ 18,425	$ 16,705	$ 33,033	$ 28,221
Income (loss) before income taxes	502	535	(111)	(360)
Interest expense	(215)	(174)	(378)	(345)
Other income, net	148	113	216	173
Total Assets	73,138		73,138		$ 64,769
Operating Segments [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total	18,439	16,721	33,068	28,262
Income (loss) before income taxes	1,402	1,358	1,758	1,524
Total Assets	135,127		135,127		122,851
Intersegment Eliminations [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total	(14)	(16)	(35)	(41)
Total Assets	(61,989)		(61,989)		(58,082)
Corporate, Non-Segment [Member]
Interest expense	(196)	(161)	(348)	(320)
Other income, net	46	11	48	13
General corporate expenses	(750)	(673)	(1,569)	(1,577)
Total Assets	51,318		51,318		47,394
Waste Management Services [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total	12,902	11,510	24,336	19,968
Waste Management Services [Member] \| Operating Segments [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total	12,902	11,510	24,336	19,968
Income (loss) before income taxes	1,221	977	2,221	1,524
Total Assets	29,014		29,014		27,383
Waste Management Services [Member] \| Intersegment Eliminations [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total
Golf and Related Operations [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total	5,523	5,195	8,697	8,253
Golf and Related Operations [Member] \| Operating Segments [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total	5,537	5,211	8,732	8,294
Income (loss) before income taxes	181	381	(463)
Total Assets	54,795		54,795		$ 48,074
Golf and Related Operations [Member] \| Intersegment Eliminations [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total	$ 14	$ 16	$ 35	$ 41

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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