v3.8.0.1
STOCK-BASED COMPENSATION (Valuation Assumptions) (Details) - $ / shares
12 Months Ended
Dec. 31, 2017
Jan. 01, 2017
Stock-Based Compensation [Abstract]    
Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value $ 1.78 $ 1.97
Fair Value Assumptions Expected Term 5 years 3 months 18 days 5 years 2 months 12 days
Expected stock volatility 43.47% 39.98%
Risk-free interest rate 2.00% 1.20%