SEGMENT INFORMATION (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012 segments	Jun. 30, 2011	Dec. 31, 2011
Segment Reporting Information [Line Items]
Number of reportable segments			2
Recycling revenues	$ 48,236	$ 63,185	$ 108,118	$ 167,637
Equipment sales, service and leasing revenues	593	587	1,104	1,165
Management fees	1,023	1,290	2,308	2,661
Cost of goods sold	(48,284)	(60,618)	(106,275)	(158,811)
Selling, general and administrative expenses	(2,967)	(2,735)	(6,177)	(6,673)
(Loss) income before other income (expense)	(1,399)	1,709	(922)	5,979
Segment assets	82,747	98,934	82,747	98,934	80,970
Recycling [Member]
Segment Reporting Information [Line Items]
Recycling revenues	48,236	63,185	108,118	167,637
Equipment sales, service and leasing revenues	0	0	0	0
Management fees	0	0	0	0
Cost of goods sold	(47,158)	(59,400)	(103,792)	(156,103)
Selling, general and administrative expenses	(1,831)	(2,203)	(3,643)	(4,524)
(Loss) income before other income (expense)	(753)	1,582	683	7,010
Segment assets	72,116	88,689	72,116	88,689
Waste Services [Member]
Segment Reporting Information [Line Items]
Recycling revenues	0	0	0	0
Equipment sales, service and leasing revenues	593	587	1,104	1,165
Management fees	1,023	1,290	2,308	2,661
Cost of goods sold	(1,126)	(1,218)	(2,483)	(2,708)
Selling, general and administrative expenses	(193)	(191)	(376)	(385)
(Loss) income before other income (expense)	297	468	553	733
Segment assets	1,832	2,179	1,832	2,179
All Other Segments [Member]
Segment Reporting Information [Line Items]
Recycling revenues	0	0	0	0
Equipment sales, service and leasing revenues	0	0	0	0
Management fees	0	0	0	0
Cost of goods sold	0	0	0	0
Selling, general and administrative expenses	(943)	(341)	(2,158)	(1,764)
(Loss) income before other income (expense)	(943)	(341)	(2,158)	(1,764)
Segment assets	$ 8,799	$ 8,066	$ 8,799	$ 8,066