INCOME TAXES - Summary of components of our net deferred tax assets and liabilities (Details 2) - USD ($) $ in Thousands |
Dec. 31, 2016 |
Dec. 31, 2015 |
|---|---|---|
| Deferred tax assets: | ||
| Inventories | $ 914 | $ 1,005 |
| Accruals | 927 | 839 |
| Other current deferred tax assets | 88 | |
| Equity-based compensation | 3,182 | 2,970 |
| Federal, state and foreign net operating loss carry forwards | 20,942 | 13,677 |
| Tax credit carry forward | 1,284 | 1,284 |
| Deferred revenue | 23 | |
| Difference between book and tax basis of property | 257 | |
| Valuation allowance | (24,622) | (16,417) |
| Net deferred tax assets | 2,884 | 3,469 |
| Deferred tax liabilities: | ||
| Difference between book and tax basis of property | (191) | |
| Intangible assets | (3,352) | (4,270) |
| Deferred tax liabilities, net | (3,352) | (4,461) |
| Net deferred tax liabilities | $ (468) | $ (992) |