SEGMENT INFORMATION (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013 segments	Jun. 30, 2012	Dec. 31, 2012
Segment Reporting Information [Line Items]
Number of reportable segments			2
Recycling revenues	$ 38,225	$ 48,236	$ 71,496	$ 108,118
Equipment sales, service and leasing revenues	532	593	1,074	1,104
Management fees	1,366	1,023	2,311	2,308
Cost of goods and services sold	38,776	48,492	71,493	106,667
Selling, general and administrative expenses	(2,698)	(2,699)	(5,145)	(5,671)
Loss before other income (expense)	(1,351)	(1,339)	(1,757)	(808)
Segment assets	61,236	82,747	61,236	82,747	63,323
Recycling [Member]
Segment Reporting Information [Line Items]
Recycling revenues	38,225	48,236	71,496	108,118
Equipment sales, service and leasing revenues	0	0	0	0
Management fees	0	0	0	0
Cost of goods and services sold	37,324	47,366	69,014	104,185
Selling, general and administrative expenses	(1,314)	(1,536)	(2,635)	(3,076)
Loss before other income (expense)	(413)	(666)	(153)	857
Segment assets	49,056	72,116	49,056	72,116
Waste Services [Member]
Segment Reporting Information [Line Items]
Recycling revenues	0	0	0	0
Equipment sales, service and leasing revenues	532	593	1,074	1,104
Management fees	1,366	1,023	2,311	2,308
Cost of goods and services sold	1,452	1,126	2,479	2,482
Selling, general and administrative expenses	(212)	(193)	(417)	(375)
Loss before other income (expense)	234	297	489	555
Segment assets	2,153	1,832	2,153	1,832
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 and services sold	0	0	0	0
Selling, general and administrative expenses	(1,172)	(970)	(2,093)	(2,220)
Loss before other income (expense)	(1,172)	(970)	(2,093)	(2,220)
Segment assets	$ 10,027	$ 8,799	$ 10,027	$ 8,799