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Stock Based Compensation - Summary of Information about Employee Stock Options Outstanding (Detail) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Jan. 02, 2021
Dec. 28, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Exercise Price $ 2.04 $ 2.20
Outstanding 67,797  
Outstanding Intrinsic Value $ 1,241  
Exercisable 67,797  
Exercisable Intrinsic Value $ 1,241  
Range One [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Exercise Price $ 2.04  
Remaining Contractual Life 1 year 3 months 29 days  
Outstanding 67,797  
Outstanding Intrinsic Value $ 1,241  
Exercisable 67,797  
Exercisable Intrinsic Value $ 1,241