v3.21.2
STOCK-BASED COMPENSATION - Valuation Assumptions (Details) - $ / shares
6 Months Ended
Jul. 04, 2021
Jun. 28, 2020
Valuation Assumptions    
Weighted-average fair value of options granted during the period $ 5.17 $ 1.81
Expected life (in years) 4 years 5 years 4 months 24 days
Expected dividend 0.00% 0.00%
Expected stock volatility 71.12% 53.64%
Risk-free interest rate 0.60% 1.10%