INVENTORY - Summary of inventory (Details) - USD ($) $ in Thousands |
Jun. 30, 2015 |
Dec. 31, 2014 |
|---|---|---|
| Inventory [Abstract] | ||
| Raw materials | $ 2,174 | $ 2,228 |
| Finished goods | 8,103 | 7,579 |
| Reserve for obsolescence | (1,668) | (1,397) |
| Inventory, net | $ 8,609 | $ 8,410 |