INVENTORIES (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Dec. 31, 2012
Inventory [Line Items]
Replacement parts, depreciation	1 year
Raw Materials	$ 15,274	$ 14,061
Finished Goods	1,805	1,505
Processing Costs	1,065	963
Total	18,144	16,529
Stainless steel, ferrous and non-ferrous materials [Member]
Inventory [Line Items]
Raw Materials	13,775	12,519
Finished Goods	1,723	1,412
Processing Costs	1,065	963
Total	16,563	14,894
Waste equipment machinery [Member]
Inventory [Line Items]
Raw Materials	0	0
Finished Goods	50	57
Processing Costs	0	0
Total	50	57
Other [Member]
Inventory [Line Items]
Raw Materials	0	0
Finished Goods	32	36
Processing Costs	0	0
Total	32	36
Total inventories for sale [Member]
Inventory [Line Items]
Raw Materials	13,775	12,519
Finished Goods	1,805	1,505
Processing Costs	1,065	963
Total	16,645	14,987
Replacement parts [Member]
Inventory [Line Items]
Raw Materials	1,499	1,542
Finished Goods	0	0
Processing Costs	0	0
Total	$ 1,499	$ 1,542