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v3.8.0.1

General (Details) - USD ($) $ / shares in Units, $ in Thousands | 1 Months Ended | 12 Months Ended
--- | --- | ---
Oct. 31, 2017 | May 31, 2016 | May 19, 2016 | Dec. 31, 2017 | Dec. 31, 2016
General (Textual) |  |  |  |  |
Follow-on public offering |  | $ 50,000 |  |  |
Follow-on public offering per sahre price | $ 19.50 | $ 11.00 |  |  |
Sale of ordinary shares |  |  | 1,818,182 | 5,189 | 5,189
Total consideration of shares |  | $ 21,279 |  | $ 30,206 | $ 21,279
Other offering expenses | $ 2,194 | $ 1,721 | $ 1,455 |  |
Ordinary shares issued |  | 2,090,909 |  |  |
AT&T Engagement [Member] |  |  |  |  |
General (Textual) |  |  |  |  |
Pursuant to AT&T Engagement |  |  |  | $ 24,528 | $ 18,310
Percentage of consolidated revenues |  |  |  | 66.00% | 62.00%

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