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Concentration of Credit Risk and Major Customers (Table)
6 Months Ended
Jun. 30, 2012
Concentration of Credit Risk and Major Customers [Abstract]  
Schedule of Entity Wide Information by Major Customers by Reporting Segments [Table Text Block]

A relatively small number of customers account for a significant percentage of DCT’s sales. Customers that exceeded 10% of total revenues and accounts receivable were as follows:

 

    Three Months Ended
June 30,
    Six Months Ended
June 30,
 
    2012     2011     2012     2011  
Customer A     53 %     20 %     39 %     16 %
Customer B     19       19       20       20  
Customer C     *       19       11       13  
Customer D     *       12       *       18  

 

* Customer accounted for less than 10% for the period indicated.