SEGMENT INFORMATION (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($) location segments	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segments	2
Depreciation expense	$ 2,300	$ 2,400
Segment Reporting Information, Profit (Loss)
Inventory adjustment for lower of cost or market	0	(1,283)
Selling, general and administrative expenses	(4,475)	(3,879)
Loss before other income (expense)	(3,056)	(8,724)
Segment Reporting Information, Assets
Cash	526	642	$ 1,059
Income tax receivable	14	14
Accounts receivable, net	3,361	1,669
Inventories	3,437	2,410
Net property and equipment	13,068	14,152
Total assets	$ 20,856	$ 19,434
Recycling [Member]
Segment Reporting Information [Line Items]
Number of locations segment is located | location	4