SEGMENT INFORMATION (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)	Jun. 30, 2015 USD ($) segments	Jun. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segments			2
Recycling revenues	$ 13,773	$ 26,770	$ 30,038	$ 50,772
Equipment sales, service and leasing revenues	640	544	1,218	1,100
Management fees	1,433	1,319	2,788	2,436
Cost of sales	(15,584)	(27,125)	(34,580)	(52,030)
Inventory adjustment for lower of cost or market	0	0	791	0
Impairment loss, property and equipment	0	0	(637)	0
Selling, general and administrative expenses	(1,229)	(1,928)	(2,377)	(3,137)
Income (loss) before other income (expense)	(967)	(420)	(4,341)	(859)
Segment assets	27,440	44,112	27,440	44,112	$ 37,790
Recycling [Member]
Segment Reporting Information [Line Items]
Recycling revenues	13,773	26,770	30,038	50,772
Equipment sales, service and leasing revenues	0	0	0	0
Management fees	0	0	0	0
Cost of sales	(13,999)	(25,754)	(31,572)	(49,522)
Inventory adjustment for lower of cost or market			791
Impairment loss, property and equipment			(637)
Selling, general and administrative expenses	(258)	(338)	(581)	(715)
Income (loss) before other income (expense)	(484)	678	(3,543)	535
Segment assets	22,881	38,967	22,881	38,967
Waste Services [Member]
Segment Reporting Information [Line Items]
Recycling revenues	0	0	0	0
Equipment sales, service and leasing revenues	640	544	1,218	1,100
Management fees	1,433	1,319	2,788	2,436
Cost of sales	(1,585)	(1,371)	(3,008)	(2,508)
Inventory adjustment for lower of cost or market			0
Impairment loss, property and equipment			0
Selling, general and administrative expenses	(160)	(202)	(362)	(450)
Income (loss) before other income (expense)	328	290	636	578
Segment assets	2,076	2,090	2,076	2,090
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 sales	0	0	0	0
Inventory adjustment for lower of cost or market			0
Impairment loss, property and equipment			0
Selling, general and administrative expenses	(811)	(1,388)	(1,434)	(1,972)
Income (loss) before other income (expense)	(811)	(1,388)	(1,434)	(1,972)
Segment assets	$ 2,483	$ 3,055	$ 2,483	$ 3,055