INVENTORIES (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Inventory [Line Items]
Inventory adjustment for lower of cost or market	$ 0	$ 0	$ 791	$ 0
Replacement parts, depreciation			1 year
Raw Materials	3,698		$ 3,698		$ 5,198
Finished Goods	1,273		1,273		1,102
Processing Costs	490		490		477
Total (unaudited in 2014)	5,461		5,461		6,777
Ferrous materials [Member]
Inventory [Line Items]
Inventory adjustment for lower of cost or market			800
Stainless steel, ferrous and non-ferrous materials [Member]
Inventory [Line Items]
Raw Materials	2,521		2,521		3,827
Finished Goods	1,191		1,191		1,043
Processing Costs	490		490		477
Total (unaudited in 2014)	4,202		4,202		5,347
Waste equipment machinery [Member]
Inventory [Line Items]
Raw Materials	0		0		0
Finished Goods	60		60		46
Processing Costs	0		0		0
Total (unaudited in 2014)	60		60		46
Other [Member]
Inventory [Line Items]
Raw Materials	0		0		0
Finished Goods	22		22		13
Processing Costs	0		0		0
Total (unaudited in 2014)	22		22		13
Total inventories for sale [Member]
Inventory [Line Items]
Raw Materials	2,521		2,521		3,827
Finished Goods	1,273		1,273		1,102
Processing Costs	490		490		477
Total (unaudited in 2014)	4,284		4,284		5,406
Replacement parts [Member]
Inventory [Line Items]
Raw Materials	1,177		1,177		1,371
Finished Goods	0		0		0
Processing Costs	0		0		0
Total (unaudited in 2014)	$ 1,177		$ 1,177		$ 1,371