INCOME TAXES (Unrecognized Tax Benefits) (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2017 |
Jan. 01, 2017 |
|
| Income Tax Disclosure [Abstract] | ||
| Unrecognized Tax Benefits, Beginning Balance | $ 115 | $ 47 |
| Increases attributable to tax positions taken during prior periods | 142 | |
| Audit settlements | (89) | (41) |
| Decreases due to lapses of statutes of limitations | (13) | (33) |
| Unrecognized Tax Benefits, Ending Balance | $ 13 | $ 115 |