INCOME TAXES (Details 2) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
|
| Income Tax Disclosure [Abstract] | |||
| United States federal tax statutory rate | $ 137 | $ (766) | $ (2,528) |
| State taxes, net of federal benefit | (6) | (233) | (36) |
| Valuation allowances against deferred tax assets | 637 | 769 | 6,657 |
| Research and development tax credits | (716) | (374) | (252) |
| Foreign provision different than U.S. tax rate | 104 | 483 | 148 |
| Stock option expense | 21 | 33 | 28 |
| Adjustment of prior year tax credits and refunds | (40) | 102 | (63) |
| Uncertain tax positions | (10) | (8) | |
| Other | (119) | (158) | 49 |
| Total income tax expense (benefit) | $ 18 | $ (154) | $ 3,995 |