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RELATED PARTY TRANSACTIONS (Schedule of Related Party Transactions) (Details) - USD ($)
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Aug. 05, 2015
Dec. 31, 2014
Related Party Transaction [Line Items]        
Payable to related parties (Note 10) $ 578,000 $ 1,922,000    
Director [Member]        
Related Party Transaction [Line Items]        
Expenses 251,000 180,000    
Accounts payable 144,000 250,000    
Consulting Fees [Member] | Director [Member]        
Related Party Transaction [Line Items]        
Expenses 0 25,000    
Algar, Inc. [Member] | Affiliated Entity [Member]        
Related Party Transaction [Line Items]        
Accrued rent payable 180,000 189,000    
Expenses 14,000 30,000    
Accrued bonuses 180,000 0 $ 378,000.0 $ 428,000.0
Accounts payable 0 28,000    
Algar, Inc. [Member] | Purchase of Scrap Metal [Member] | Affiliated Entity [Member]        
Related Party Transaction [Line Items]        
Expenses 1,204,000 1,225,000    
Algar, Inc. [Member] | Management Fee [Member] | Affiliated Entity [Member]        
Related Party Transaction [Line Items]        
Expenses 238,000 250,000    
Algar, Inc. [Member] | Sale of Scrap Metal [Member] | Affiliated Entity [Member]        
Related Party Transaction [Line Items]        
Revenue from Related Parties 7,000 117,000    
Accounts Receivable, Related Parties 0 93,000    
Algar, Inc. [Member] | Logistical Services [Member] | Affiliated Entity [Member]        
Related Party Transaction [Line Items]        
Revenue from Related Parties 48,000 69,000    
Accounts Receivable, Related Parties 0 19,000    
Algar, Inc. [Member] | IT Services [Member] | Affiliated Entity [Member]        
Related Party Transaction [Line Items]        
Revenue from Related Parties 16,000 23,000    
Algar, Inc. [Member] | Net rental Income [Member] | Affiliated Entity [Member]        
Related Party Transaction [Line Items]        
Revenue from Related Parties 16,000 0    
K and R, LLC [Member] | Affiliated Entity [Member]        
Related Party Transaction [Line Items]        
Deposits (included in other long-term assets) 42,000 74,000    
Notes Payable, Related Parties 1,504,000 0    
Accrued Interest Related Party 63,000 0    
Payable to related parties (Note 10) 0 500,000    
K and R, LLC [Member] | Related Party Transaction, Accrued Rent, Property [Member] | Affiliated Entity [Member]        
Related Party Transaction [Line Items]        
Accrued rent payable 176,000 821,000    
K and R, LLC [Member] | Rent Expense, Property [Member] | Affiliated Entity [Member]        
Related Party Transaction [Line Items]        
Expenses 646,000 646,000    
K and R, LLC [Member] | Lease Expense, Equipment [Member] | Affiliated Entity [Member]        
Related Party Transaction [Line Items]        
Accrued rent payable 15,000 132,000    
Expenses 25,000 126,000    
K and R, LLC [Member] | Interest expense [Member] | Affiliated Entity [Member]        
Related Party Transaction [Line Items]        
Expenses 63,000 0    
Affiliated Entity, LK Property Investments, LLC [Member] | Affiliated Entity [Member]        
Related Party Transaction [Line Items]        
Deposits (included in other long-term assets) 3,000 3,000    
Expenses 36,000 24,000    
Accounts payable 0 2,000    
Scrap material sales 0 (102,000)    
MetalX, LLC [Member] | Affiliated Entity [Member]        
Related Party Transaction [Line Items]        
Revenue from Related Parties 246,000 1,905,000    
Accounts Receivable, Related Parties 105,000 19,000    
Affiliated Entity, SG&D Ventures, LLC [Member] | Affiliated Entity [Member]        
Related Party Transaction [Line Items]        
Scrap material sales $ 0 $ 1,000