SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Inventories) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Inventory [Line Items]
Inventory write-down	$ 1,283	$ 1,911
Inventory, Net [Abstract]
Raw Materials	1,354	5,198
Finished Goods	652	1,054
Processing Costs	404	477
Total	$ 2,410	6,729
Replacement parts, depreciation period	1 year
Stainless steel, ferrous and non-ferrous materials [Member]
Inventory, Net [Abstract]
Raw Materials	$ 1,354	3,827
Finished Goods	649	1,043
Processing Costs	404	477
Total	2,407	5,347
Other [Member]
Inventory, Net [Abstract]
Raw Materials	0	0
Finished Goods	3	11
Processing Costs	0	0
Total	$ 3	11
Total inventories for sale [Member]
Inventory, Net [Abstract]
Raw Materials		3,827
Finished Goods		1,054
Processing Costs		477
Total		5,358
Replacement parts [Member]
Inventory, Net [Abstract]
Raw Materials		1,371
Finished Goods		0
Processing Costs		0
Total		$ 1,371