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v3.10.0.1

Segment Information (Details Textual) | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017 | Dec. 31, 2017
Segment Information (Textual) |  |  |  |  |
Number of reportable segments |  |  | 1 |  |
Percentage of total assets | 100.00% | 100.00% | 100.00% | 100.00% |
Sweden [Member] |  |  |  |  |
Segment Information (Textual) |  |  |  |  |
Percentage of total assets |  |  | 54.00% |  | 71.00%
United States [Member] |  |  |  |  |
Segment Information (Textual) |  |  |  |  |
Percentage of total assets |  |  | 45.00% |  | 28.00%

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