INVENTORIES (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2015	Mar. 31, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Inventory [Line Items]
Inventory adjustment for lower of cost or market	$ 319		$ 0	$ 1,110	$ 0
Replacement parts, depreciation				1 year
Raw Materials	2,939			$ 2,939		$ 5,198
Finished Goods	1,051			1,051		1,102
Processing Costs	399			399		477
Total (unaudited in 2014)	4,389			4,389		6,777
Ferrous materials [Member]
Inventory [Line Items]
Inventory adjustment for lower of cost or market	300	$ 800
Stainless steel, ferrous and non-ferrous materials [Member]
Inventory [Line Items]
Raw Materials	1,889			1,889		3,827
Finished Goods	998			998		1,043
Processing Costs	399			399		477
Total (unaudited in 2014)	3,286			3,286		5,347
Waste equipment machinery [Member]
Inventory [Line Items]
Raw Materials	0			0		0
Finished Goods	38			38		46
Processing Costs	0			0		0
Total (unaudited in 2014)	38			38		46
Other [Member]
Inventory [Line Items]
Raw Materials	0			0		0
Finished Goods	15			15		13
Processing Costs	0			0		0
Total (unaudited in 2014)	15			15		13
Total inventories for sale [Member]
Inventory [Line Items]
Raw Materials	1,889			1,889		3,827
Finished Goods	1,051			1,051		1,102
Processing Costs	399			399		477
Total (unaudited in 2014)	3,339			3,339		5,406
Replacement parts [Member]
Inventory [Line Items]
Raw Materials	1,050			1,050		1,371
Finished Goods	0			0		0
Processing Costs	0			0		0
Total (unaudited in 2014)	$ 1,050			$ 1,050		$ 1,371