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Accumulated Other Comprehensive Income (Loss) (Tables)
 3 Months Ended
Mar. 31, 2018
Accumulated Other Comprehensive Income / (Loss) [Abstract]  
Schedule of Accumulated Other Comprehensive Income (Loss)
 
Three Months Ended March 31,
 
2018
 
2017
 
(dollars in thousands)
Beginning Balance
$
(8
)
 
$
(2
)
Foreign currency translation
1

 
(2
)
Ending Balance
$
(7
)
 
$
(4
)