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Major Customer
6 Months Ended
Jun. 30, 2011
Major Customer [Abstract]  
Major Customer
Note 3 — Major Customer
     Revenues for the three and six months ended June 30, 2011 and 2010, include revenue from net sales to a particular customer of our PGM and Minor Metals Recycling segment (which at times has accounted for 10% or more of the total revenue of the Company), together with trade receivables due from such customer as of June 30, 2011 and December 31, 2010.
                                                 
    Net sales to Customer        
    as a percentage of Total Revenues     Trade Receivable Balance as of  
    Three Months     Three Months     Six Months     Six Months              
    Ended     Ended     Ended     Ended     June 30,     December 31,  
    June 30, 2011     June 30, 2010     June 30, 2011     June 30, 2010     2011     2010  
 
                                               
Customer A
    17 %     25 %     19 %     23 %   $ 2,891     $ 7,994