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Schedule II - Valuation and Qualifying Accounts
12 Months Ended
Dec. 31, 2015
Valuation and Qualifying Accounts [Abstract]  
Valuation and Qualifying Accounts
Schedule II – Valuation and Qualifying Accounts for the years ended December 31, 2015, 2014 and 2013

(Dollars in thousands)
 
 
Balance at Beginning of Period

 
Additions and Deductions
 
Uncollectible Accounts Written-off

 
Balance at End of Period

Description
 
 
Charged /(Credited)  to Costs and Expenses

 
Charged to Other Accounts

 
 
2015
 
Accounts and notes receivable allowance
 
$
465

 
$
(194
)
 
$

 
$
92

 
$
179

2014
 
Accounts and notes receivable allowance
 
$
541

 
$
34

 
$

 
$
110

 
$
465

2013
 
Accounts and notes receivable allowance
 
$
740

 
$
185

 
$

 
$
384

 
$
541