PROPERTY AND EQUIPMENT - TABLE (Details) - USD ($) $ in Thousands |
Dec. 31, 2016 |
Dec. 31, 2015 |
|---|---|---|
| Property and equipment | ||
| Less accumulated depreciation and amortization | $ (3,218) | $ (2,682) |
| Property and equipment, net | 510 | 938 |
| Computer software and hardware | ||
| Property and equipment | ||
| Gross property and equipment | 606 | 562 |
| Research and lab equipment | ||
| Property and equipment | ||
| Gross property and equipment | 1,895 | 1,874 |
| Leasehold improvements | ||
| Property and equipment | ||
| Gross property and equipment | 431 | 392 |
| Office equipment | ||
| Property and equipment | ||
| Gross property and equipment | $ 796 | $ 792 |