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Goodwill Goodwill
 6 Months Ended
Jun. 30, 2018
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill Disclosure [Text Block]
Goodwill

Goodwill activity for the first six months of 2018 and 2017 is included in the table below:
 
(Dollars in thousands)
 
Six Months Ended June 30,
 
2018
 
2017
Beginning balance
$
19,614

 
$
5,520

    Adjustment to original acquisition allocation
(17
)
 
—

Impact of foreign exchange
(793
)
 
161

Ending balance
$
18,804

 
$
5,681