Note 7 - Business Segment Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended			3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012	Sep. 30, 2013 Waste Management Services [Member]	Sep. 30, 2012 Waste Management Services [Member]	Sep. 30, 2013 Waste Management Services [Member]	Sep. 30, 2012 Waste Management Services [Member]	Sep. 30, 2013 Waste Brokerage and Management Services [Member]	Dec. 31, 2012 Waste Brokerage and Management Services [Member]	Sep. 30, 2013 Consolidated Net Operating Revenues [Member]	Sep. 30, 2013 Waste Management Services Segments Net Operating Revenues [Member]	Sep. 30, 2013 Accounts Receivable [Member]	Sep. 30, 2012 Consolidated Net Operating Revenues [Member]	Sep. 30, 2012 Waste Management Services Segments Net Operating Revenues [Member]
Note 7 - Business Segment Information (Details) [Line Items]
Deferred Revenue, Current (in Dollars)	$ 2,622		$ 2,622		$ 2,180
Concentration Risk, Percentage												14.20%	18.90%	15.00%	9.00%	12.00%
Increase (Decrease) in Accounts Receivable (in Dollars)			2,053	(2,941)				3,100
Revenues (in Dollars)	$ 16,386	$ 13,230	$ 46,788	$ 36,777		$ 12,487	$ 9,561	$ 37,148	$ 27,614	$ 11,900	$ 9,100