LEASES - Future lease payments under operating leases (Details) $ in Thousands |
Sep. 30, 2019
USD ($)
|
|---|---|
| LEASES | |
| Remainder of 2019 | $ 331 |
| 2020 | 1,308 |
| 2021 | 1,237 |
| Total future lease payments | 2,876 |
| Less imputed interest | (246) |
| Total lease liability balance | $ 2,630 |