COMMITMENTS AND CONTINGENT LIABILITIES - Total minimum rental due in future periods (Details) $ in Thousands |
Dec. 31, 2018
USD ($)
|
|---|---|
| Commitments and Contingencies Disclosure [Abstract] | |
| 2019 | $ 285 |
| 2020 | 244 |
| 2021 | 252 |
| 2022 | 252 |
| 2023 | 252 |
| Years thereafter | 1,908 |
| Total minimum lease payments | $ 3,193 |