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Accumulated Other Comprehensive Income (Loss) (Tables)
 9 Months Ended
Sep. 30, 2018
Accumulated Other Comprehensive Income / (Loss) [Abstract]  
Schedule of Accumulated Other Comprehensive Income (Loss)
 
Three Months Ended September 30,
 
Nine Months Ended September 30,
 
2018
 
2017
 
2018
 
2017
 
(dollars in thousands)
Beginning Balance
$
(7
)
 
$
(8
)
 
$
(8
)
 
$
(2
)
Foreign currency translation
4

 
—

 
5

 
(6
)
Ending Balance
$
(3
)
 
$
(8
)
 
$
(3
)
 
$
(8
)