LEASES - Additional information (Details) - USD ($) $ in Thousands |
Jun. 30, 2019 |
Dec. 31, 2018 |
|---|---|---|
| LEASES | ||
| Operating Lease, Right-of-Use Asset | $ 2,699 | $ 0 |
| Operating Lease, Liability | $ 2,837 | |
| Operating Lease, Weighted Average Remaining Lease Term | 2 years 5 months 16 days | |
| Operating Lease, Weighted Average Discount Rate, Percent | 8.25% |