INCOME TAXES - Gross Unrecognized Tax Benefits Activity (Details) - USD ($) $ in Thousands |
Jun. 30, 2016 |
Jun. 30, 2015 |
|---|---|---|
| Summary of activity related to gross unrecognized tax benefits | ||
| Balance at the beginning of the period | $ 5,485 | $ 5,485 |
| Balance at the end of the period | $ 5,485 | $ 5,485 |