TAXES ON INCOME (Details) - USD ($) $ in Thousands |
Dec. 31, 2017 |
Dec. 31, 2016 |
|---|---|---|
| Income Tax Disclosure [Line Items] | ||
| Operating loss carryforward | $ 51,107 | $ 39,967 |
| Net deferred tax asset before valuation allowance | 14,090 | 13,333 |
| Valuation allowance | (14,090) | (13,333) |
| Net deferred tax asset | $ 0 | $ 0 |