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Receivables (Tables)
 9 Months Ended
Sep. 30, 2013
Receivables  
Schedule of receivables

Receivables consisted of the following (dollars in thousands):

 

 

 

September 30,

 

December 31,

 

 

 

2013

 

2012

 

 

 

 

 

 

 

Customers and other

 

$

40,328

 

$

36,713

 

Allowance for doubtful accounts

 

(3,622

)

(2,631

)

 

 

 

 

 

 

 

 

$

36,706

 

$

34,082