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Goodwill (Tables)
 12 Months Ended
Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Goodwill [Table Text Block] The rollforward of goodwill was as follows (in thousands):
 
Direct
 
Retail
 
Total
Balance, January 1, 2015
$
2,520

 
$
—

 
$
2,520

Currency exchange rate adjustment
(407
)
 
—

 
(407
)
Business acquisition (Note 2)
—

 
58,357

 
58,357

Balance, December 31, 2015
2,113

 
58,357

 
60,470

Currency exchange rate adjustment
67

 
3

 
70

Measurement period adjustments (Note 2)
—

 
1,348

 
1,348

Balance, December 31, 2016
2,180

 
59,708

 
61,888

Currency exchange rate adjustment
155

 
(13
)
 
142

Balance, December 31, 2017
$
2,335

 
$
59,695

 
$
62,030