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RELATED PARTY BALANCES AND TRANSACTIONS (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands | 1 Months Ended | 4 Months Ended | 12 Months Ended
--- | --- | --- | ---
May 25, 2016 | May 19, 2016 | Dec. 31, 2015 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Related Party Transaction [Line Items] |  |  |  |  |  |
Aggregated Revenue |  |  |  | $ 62 |  | $ 19
Aggregate net amounts of lease expenses |  |  |  | 604 | $ 411 | 417
Related party revenues |  |  |  | 139 | 107 | 53
Reimburse expense |  |  |  | 730 |  |
Renovation and reimburse expenses |  |  |  | 585 |  |
Financial expenses |  |  |  | 816 | (433) | (332)
Initial payment received under sales agreement |  |  |  | $ 18,322 | 18,322 |
Follow-on Public Offering per sahre price | $ 11.00 | $ 11.00 |  |  |  |
Gross proceeds from public offering | $ 21,279 | $ 20,000 |  |  |  |
Shares issued | 2,090,909 | 272,727 |  |  |  |
Principal shareholder [Member] |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Joint Ownership Percentage of Principal Shareholders Which Are Principal Shareholder of Affiliates |  |  |  | 29.00% |  |
AT&T Engagement [Member] |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Initial payment received under sales agreement |  |  |  | $ 18,310 |  |
Chairwoman [Member] |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Salary expenses |  |  | $ 30 | $ 180 |  |
Consultant [Member] |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Related party expense |  |  |  |  | $ 24 | $ 39
Director [Member] |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Shares issued | 200,000 |  |  |  |  |
Investment in issuance of Ordinary shares | $ 2,200 |  |  |  |  |

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