SEGMENT INFORMATION (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2015 USD ($) location segments	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segments	2
Depreciation expense	$ 2,400	$ 2,700
Segment Reporting Information, Profit (Loss)
Inventory adjustment for lower of cost or market	(1,283)	(1,911)
Selling, general and administrative expenses	(3,879)	(6,438)
Loss before other income (expense)	(8,724)	(7,882)
Segment Reporting Information, Assets
Cash	642	1,059	$ 1,589
Income tax receivable	14	0
Accounts receivable, net	1,669	8,947
Inventories	2,410	6,729
Net property and equipment	14,152	17,563
Total assets	$ 19,434	$ 37,790
Recycling [Member]
Segment Reporting Information [Line Items]
Number of locations segment is located | location	4