v3.21.1
STOCK-BASED COMPENSATION - Valuation Assumptions (Details) - $ / shares
12 Months Ended
Jan. 03, 2021
Dec. 29, 2019
Valuation Assumptions    
Weighted-average fair value of options granted during the period $ 1.79 $ 1.88
Expected life (in years) 5 years 1 month 6 days 4 years 7 months 6 days
Expected dividend 0.00% 0.00%
Expected stock volatility 55.02% 50.55%
Risk-free interest rate 0.90% 1.90%