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SHARE CAPITAL (Narrative) (Details) |  |  | 1 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Dec. 07, 2016 USD ($) shares | Oct. 12, 2015 shares | Mar. 23, 2015 USD ($) $ / shares shares | Sep. 28, 2014 USD ($) $ / shares shares | Jul. 24, 2014 USD ($) $ / shares shares | Dec. 31, 2016 USD ($) shares | Dec. 31, 2015 USD ($) shares | Dec. 31, 2014 USD ($) | Dec. 14, 2006 shares | [1]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Common stock available for issuance | shares |  |  |  |  |  | 2,391,481 |  |  | 13,841,655
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures, Total | shares |  |  | 1,909,000 |  |  |  |  |  |
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Total |  |  |  |  |  | $ 509,000 |  |  |
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition |  |  |  |  |  | 9 months 18 days |  |  |
Proceeds from Stock Options Exercised |  |  |  |  |  | $ 14,000 | $ 534,000 | $ 46,000 |
Debt Conversion, Converted Instrument, Shares Issued | shares | 23,846,735 |  |  |  |  |  |  |  |
Four Point Five Percentage Convertible Notes [Member] |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | 4.50% |  |  |  |  |  |  |  |
Debt Conversion, Converted Instrument, Amount | $ 54,052,000 |  |  |  |  | $ 54,052,000 |  |  |
Convertible Notes Due Two Thousand Twenty One [Member] |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Debt Conversion, Converted Instrument, Amount | $ 40,186,000 |  |  |  |  |  |  |  |
Common Stock [Member] |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Common stock issued | shares |  | 5,649,079 |  |  |  | 23,846,735 | 5,649,079 |  |
Option to purchase shares of common stock [Member] |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period |  |  | 10 years |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award Grant Date Fair Value |  |  | $ 1,900,000 |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate |  |  | 0.00% |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate |  |  | 61.70% |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate |  |  | 1.60% |  |  |  |  |  |
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price | $ / shares |  |  | $ 1.72 |  |  |  |  |  |
Option to purchase shares of common stock [Member] | President and Chief Executive Officer [Member] |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Number of options or restricted stock granted | shares |  |  |  | 900,000 |  |  |  |  |
Exercise price | $ / shares |  |  |  | $ 2.37 |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period |  |  |  | 10 years |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award Grant Date Fair Value |  |  |  | $ 1,000,000 |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate |  |  |  | 0.00% |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate |  |  |  | 62.00% |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate |  |  |  | 1.86% |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award Number Of Installments For Vesting Period |  |  |  | 16 |  |  |  |  |
Option to purchase shares of common stock [Member] | Board of Directors Chairman [Member] |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Number of options or restricted stock granted | shares |  |  |  |  | 150,000 |  |  |  |
Exercise price | $ / shares |  |  |  |  | $ 3.37 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period |  |  |  |  | 10 years |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award Grant Date Fair Value |  |  |  |  | $ 193,000 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate |  |  |  |  | 0.00% |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate |  |  |  |  | 62.00% |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate |  |  |  |  | 1.90% |  |  |  |
Option to purchase shares of common stock [Member] | Vest on the first anniversary of the grant date [Member] |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage |  |  | 25.00% |  |  |  |  |  |
[1] | The total intrinsic value of options exercised during the years ended December 31, 2014, 2015 and 2016, was approximately $447,000, $675,000 and $213,000, respectively.

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