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Receivables, Net (Tables)
 12 Months Ended
Dec. 31, 2016
Receivables, Net  
Schedule of receivables

Receivables consisted of the following (dollars in thousands):

 

 

 

 

 

 

 

 

 

 

 

 

December 31,

 

 

    

 

2016

    

2015

 

Customers and other

 

 

$
37,408

 

$
36,667

 

Allowance for doubtful accounts

 

 

 
(4,031)

 

 
(3,931)

 

 

 

 

$
33,377

 

$
32,736

 

 

Summary of activity for the allowance for doubtful accounts

The following is a summary of activity for the allowance for doubtful accounts (dollars in thousands):

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

    

 

 

    

Additional

    

 

    

 

 

 

 

 

 

 

 

Charges to

 

Deductions

 

 

 

 

 

 

Beginning

 

Costs and

 

from

 

Ending

 

 

 

Balance

 

Expenses

 

Allowance

 

Balance

 

January 1 to December 31, 2016

 

$
3,931

 

$
4,031

 

$
(3,931)

 

$
4,031

 

January 1 to December 31, 2015

 

 
3,755

 

 
3,648

 

 
(3,472)

 

 
3,931

 

January 1 to December 31, 2014

 

 
3,942

 

 
3,590

 

 
(3,777)

 

 
3,755