Annual report pursuant to Section 13 and 15(d)

Stock-based Compensation - Valuation Assumptions of Stock Options (Details)

v3.20.4
Stock-based Compensation - Valuation Assumptions of Stock Options (Details) - Black Scholes Weighted Average Assumptions [Member] - Stock Option [Member] - $ / shares
12 Months Ended
Jan. 03, 2021
Dec. 29, 2019
Dec. 30, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Expected dividend yield 0.00%
Expected volatility 42.10%
Expected forfeiture 30.00%
Risk-free interest rate 2.84%
Expected stock option life in years     4 years
Weighted-average stock option fair value per stock option granted $ 1.00