INVENTORIES (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Inventory [Line Items]
Inventory write-down	$ 1,900	$ 0	$ 1,900	$ 0
Replacement parts, depreciation			1 year
Raw Materials	12,474		12,474		14,061
Finished Goods	1,297		1,297		1,505
Processing Costs	1,162		1,162		963
Total	14,933		14,933		16,529
Stainless steel, ferrous and non-ferrous materials [Member]
Inventory [Line Items]
Raw Materials	10,940		10,940		12,519
Finished Goods	1,197		1,197		1,412
Processing Costs	1,162		1,162		963
Total	13,299		13,299		14,894
Waste equipment machinery [Member]
Inventory [Line Items]
Raw Materials	0		0		0
Finished Goods	60		60		57
Processing Costs	0		0		0
Total	60		60		57
Other [Member]
Inventory [Line Items]
Raw Materials	0		0		0
Finished Goods	40		40		36
Processing Costs	0		0		0
Total	40		40		36
Total inventories for sale [Member]
Inventory [Line Items]
Raw Materials	10,940		10,940		12,519
Finished Goods	1,297		1,297		1,505
Processing Costs	1,162		1,162		963
Total	13,399		13,399		14,987
Replacement parts [Member]
Inventory [Line Items]
Raw Materials	1,534		1,534		1,542
Finished Goods	0		0		0
Processing Costs	0		0		0
Total	$ 1,534		$ 1,534		$ 1,542