Quarterly report pursuant to Section 13 or 15(d)

CONTINGENCIES (Details)

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CONTINGENCIES (Details) - USD ($)
 1 Months Ended 12 Months Ended
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Dec. 31, 2015
Palmer of Texas Customer Breach of Contract Case | Settled Litigation        
Product Liability Contingency [Line Items]        
Loss contingency, damages awarded, value $ 0      
Loss contingency accrual 11,000,000      
Metals Segment Customer Breach of Contract Case | Settled Litigation        
Product Liability Contingency [Line Items]        
Loss contingency accrual     $ 600,000  
Loss contingency, damages sought     3,100,000  
Loss contingency accrual, payments   $ 600,000 $ 2,500,000  
Metals Segment Customer Breach of Contract Case | Pending Litigation        
Product Liability Contingency [Line Items]        
Loss contingency, damages sought       $ 3,000,000
Palmer of Texas | Palmer of Texas Customer Breach of Contract Case | Settled Litigation        
Product Liability Contingency [Line Items]        
Loss contingency, damages awarded, value 8,600,000      
Litigation settlement, expense $ 1,040,000