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Goodwill and Intangible Assets (Details 1) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Gross carrying amounts:        
Balance     $ 10,045 $ 9,549
Foreign currency translation     (247) 229
Balance $ 9,798 $ 9,778 9,798 9,778
Accumulated amortization:        
Balance     2,439 1,358
Amortization expense 200 200 496 485
Foreign currency translation     (80) 38
Balance 2,855 1,881 2,855 1,881
Developed Technology Rights [Member]        
Gross carrying amounts:        
Balance     3,204 3,019
Foreign currency translation     (107) 84
Balance 3,097 3,103 3,097 3,103
Accumulated amortization:        
Balance     902 545
Amortization expense     159 153
Foreign currency translation     (39) 18
Balance 1,022 716 1,022 716
Customer Relationships [Member]        
Gross carrying amounts:        
Balance     2,264 2,112
Foreign currency translation     (104) 65
Balance 2,160 2,177 2,160 2,177
Accumulated amortization:        
Balance     645 425
Amortization expense     93 89
Foreign currency translation     (33) 15
Balance 705 529 705 529
Trademarks and TradeNames [Member]        
Gross carrying amounts:        
Balance     884 865
Foreign currency translation     (13) 4
Balance 871 869 871 869
Accumulated amortization:        
Balance     330 203
Amortization expense     61 60
Foreign currency translation     (5) 2
Balance 386 265 386 265
Patents [Member]        
Gross carrying amounts:        
Balance     46 43
Foreign currency translation     (2) 1
Balance 44 44 44 44
Accumulated amortization:        
Balance     15 10
Amortization expense     2 2
Foreign currency translation     0 1
Balance 17 13 17 13
Media Contact Database [Member]        
Gross carrying amounts:        
Balance     3,647 3,510
Foreign currency translation     (21) 75
Balance 3,626 3,585 3,626 3,585
Accumulated amortization:        
Balance     547 175
Amortization expense     181 181
Foreign currency translation     (3) 2
Balance $ 725 $ 358 $ 725 $ 358