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FAIR VALUE (Schedule of Changes in Fair Value of Derivative Liabilities) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Derivative liability beginning balance |  |  | $ 62 |
Additions |  | $ 142 |  | $ 142
Deductions | $ (438) |  | (477) |
Total (gains) or losses: |  |  |  |
Revaluation recognized in earnings | 438 | 1 | 415 | 1
Derivative liability ending balance |  | 143 |  | 143
Bridge Notes Redemption Feature [Member] |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Derivative liability beginning balance |  |  | 30 |
Additions |  | 142 |  | 142
Deductions | (438) |  | (438) |
Total (gains) or losses: |  |  |  |
Revaluation recognized in earnings | $ 438 | 1 | 408 | 1
Derivative liability ending balance |  | $ 143 |  | $ 143
Conversion Option [Member] |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Derivative liability beginning balance |  |  | 32 |
Deductions |  |  | (39) |
Total (gains) or losses: |  |  |  |
Revaluation recognized in earnings |  |  | $ 7 |

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