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Accounts Receivable - Third Parties (Tables)
 9 Months Ended
Sep. 30, 2019
Accounts Receivable, after Allowance for Credit Loss [Abstract]  
Schedule Of Accounts Receivable - Third Parties
Accounts receivable—third parties consist of the following:
 
 
September 30,
2019
 
December 31,
2018
Trade customers
 
$
14,614

 
$
17,325

Allowance for doubtful accounts
 
(134
)
 
(921
)
 
 
14,480

 
16,404

Other
 
63

 
—

Accounts receivable, net—third parties
 
$
14,543

 
$
16,404