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SHAREHOLDERS' EQUITY (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands | 1 Months Ended | 4 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
May 25, 2016 | May 19, 2016 | May 04, 2016 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014 | Oct. 30, 2016 | Mar. 03, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Shares held by subsidiary |  |  |  | 5,189 |  |  |  |  |  |
Treasury stock, shares |  |  |  | 30,843 |  |  |  |  |  |
Increase in authorized ordinary shares |  |  |  |  |  | $ 1,026 |  |  |  |
Number of authorized ordinary shares |  |  |  | 20,000,000 |  | 20,000,000 |  |  |  |
Follow-on Public Offering |  | $ 1,818,182 | $ 50,000 |  |  |  |  |  |  |
Follow-on Public Offering per sahre price | $ 11.00 | $ 11.00 |  |  |  |  |  |  |  |
Gross proceeds from public offering | $ 21,279 | $ 20,000 |  |  |  |  |  |  |  |
Net proceeds from public offering | $ 1,721 | $ 1,455 |  |  |  |  |  |  |  |
Shares issued | 2,090,909 | 272,727 |  |  |  |  |  |  |  |
In-the-money options outstanding |  |  |  | 624,437 |  |  |  |  |  |
In-the-money options exercisable |  |  |  | 330,337 |  |  |  |  |  |
Compensation cost |  |  |  | $ 2,471 | [1] | $ 1,409 | [1] | $ 579 |  |
Issuance of shares upon exercise of warrants |  |  |  | 310,985 |  | 22,921 |  |  |  |
Unrecognized balance of compensation expenses |  |  |  | $ 3,120 |  |  |  |  |  |
Weighted average period over which total unrecognized cost related to non-vested share based compensation expected to be recognized |  |  |  | 1 year 1 month 17 days |  |  |  |  |  |
Maximum [Member] |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Vesting period for plan |  |  |  | 4 years |  |  |  |  |  |
Share Option Plan 2013 [Member] |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Number of outstanding shares reserved before increment |  |  |  |  |  |  |  |  | 1,250,000 | 750,000
Number of outstanding shares reserved |  |  |  |  |  |  |  |  | 2,450,000 | 1,250,000
Number of shares available for future grants |  |  |  | 1,172,400 |  |  |  |  |  |
Employee Stock Option [Member] |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Warrants exercised |  |  |  | 508,149 |  | 185,989 |  |  |  |
Granted |  |  |  |  |  | $ 11.76 |  |  |  |
Weighted average fair values of options granted |  |  |  | $ 6.68 |  | 4.90 |  | $ 2.70 |  |
Employee Stock Option [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Granted |  |  |  | 11.29 |  |  |  |  |  |
Restricted Stock Units (RSUs) [Member] |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Weighted average fair values on grant date |  |  |  | $ 14.69 |  | $ 10.60 |  |  |  |
Compensation cost |  |  |  | $ 1,331 |  | $ 342 |  |  |  |
Warrant [Member] |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Warrants exercised |  |  |  | 310,985 |  |  |  |  |  |
Employee Stock Option and Restricted Stock Units RSU [Member] |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Vesting period for plan |  |  |  | 3 years |  |  |  |  |  |
[1] | Including $1,331 and $342 compensation cost related to RSUs for the year ended December 31, 2016 and 2015, respectively.

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