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3. Trade Receivables, net (Tables)
9 Months Ended
Sep. 30, 2016
Trade Receivables Net Tables  
Trade Receivables, net
    September 30,     December 31,  
    2016     2015  
             
Trade receivables   $ 323     $ 378  
Conforming EPTAs     71       94  
Non-Conforming EPTAs:                
1 - 30 days     4       11  
31 - 60 days     -       4  
61 - 90 days     2       17  
Gross trade receivables     400       504  
Less: allowance for doubtful accounts     (51 )     (59 )
Trade receivables, net   $ 349     $ 445  
                 
Current trade receivables, net   $ 303     $ 364  
Long-term trade receivables, net     46       81  
Trade receivables, net   $ 349     $ 445