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Accounts Receivable - Third Parties (Tables)
 6 Months Ended
Jun. 30, 2017
Accounts Receivable, Net [Abstract]  
Schedule Of Accounts Receivable - Third Parties
Accounts receivable—third parties consist of the following:
 
 
June 30,
2017
 
December 31,
2016
Trade customers
 
$
15,759

 
$
11,913

Allowance for doubtful accounts
 
(1,039
)
 
(564
)
 
 
14,720

 
11,349

Other
 
—

 
736

Accounts receivable, net—third parties
 
$
14,720

 
$
12,085