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Goodwill and Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Goodwill [Table Text Block] | The changes in the carrying amount of goodwill as of December 31, 2016 and 2015 were as follows (in thousands):
Balance as of January 1, 2015 |  | $ | 1,635 |
Foreign currency translation adjustment |  |  | (159) |
Balance as of December 31, 2015 |  |  | 1,476 |
Goodwill recorded in connection with an acquisition |  |  | 1,263 |
Foreign currency translation adjustment |  |  | (5) |
Balance as of December 31, 2016 |  | $ | 2,734 |
Schedule of Finite-Lived Intangible Assets [Table Text Block] | Information regarding our acquisition-related intangible assets is as follows (in thousands):
|  |  |  |  |  |  |  | Trademarks |  |  |  |  |  | Media |  |  |  |
|  | Developed |  |  | Customer |  |  | and |  |  |  |  |  | Contact |  |  |  |
|  | technology |  |  | relationships |  |  | tradenames |  |  | Patents |  |  | Database |  |  | Total |
Gross carrying amounts: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance as of January 1, 2015 |  | $ | 2,369 |  |  | $ | 2,439 |  |  | $ | 596 |  |  | $ | 50 |  |  | $ | - |  |  | $ | 5,454 |
Foreign currency translation |  |  | (391) |  |  |  | (403) |  |  |  | (41) |  |  |  | (9) |  |  |  | - |  |  |  | (844) |
Balance as of December 31, 2015 |  |  | 1,978 |  |  |  | 2,036 |  |  |  | 555 |  |  |  | 41 |  |  |  | - |  |  |  | 4,610 |
Additions |  |  | 994 |  |  |  | - |  |  |  | 310 |  |  |  | - |  |  |  | 3,610 |  |  |  | 4,914 |
Foreign currency translation |  |  | 47 |  |  |  | 76 |  |  |  | - |  |  |  | 2 |  |  |  | (100) |  |  |  | 25 |
Balance as of December 31, 2016 |  | $ | 3,019 |  |  | $ | 2,112 |  |  | $ | 865 |  |  | $ | 43 |  |  | $ | 3,510 |  |  | $ | 9,549 |
|  |  |  |  |  |  |  | Trademarks |  |  |  |  |  | Media |  |  |  |
|  | Developed |  |  | Customer |  |  | and |  |  |  |  |  | Contact |  |  |  |
|  | technology |  |  | relationships |  |  | tradenames |  |  | Patents |  |  | Database |  |  | Total |
Accumulated amortization: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance as of January 1, 2015 |  | $ | 98 |  |  | $ | 84 |  |  | $ | 11 |  |  | $ | - |  |  | $ | - |  |  | $ | 193 |
Amortization expense |  |  | 220 |  |  |  | 189 |  |  |  | 91 |  |  |  | 6 |  |  |  | - |  |  |  | 506 |
Foreign currency translation |  |  | (38) |  |  |  | (33) |  |  |  | (4) |  |  |  | (1) |  |  |  | - |  |  |  | (76) |
Balance as of December 31, 2015 |  |  | 280 |  |  |  | 240 |  |  |  | 98 |  |  |  | 5 |  |  |  | - |  |  |  | 623 |
Amortization expense |  |  | 257 |  |  |  | 178 |  |  |  | 105 |  |  |  | 4 |  |  |  | 181 |  |  |  | 725 |
Foreign currency translation |  |  | 8 |  |  |  | 7 |  |  |  | - |  |  |  | 1 |  |  |  | (6) |  |  |  | 10 |
Balance as of December 31, 2016 |  | $ | 545 |  |  | $ | 425 |  |  | $ | 203 |  |  | $ | 10 |  |  | $ | 175 |  |  | $ | 1,358 |
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] | Estimated annual amortization expense for intangible assets subsequent to December 31, 2016 is as follows (in thousands):
Year |  | Amortization |
2017 |  | $ | 952 |
2018 |  |  | 952 |
2019 |  |  | 952 |
2020 |  |  | 887 |
2021 |  |  | 887 |
Thereafter |  |  | 3,561 |
|  | $ | 8,191 |

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