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Benefit Plans and Stock-Based Compensation - Summary of Status of Stock Options (Detail) - $ / shares
12 Months Ended
Mar. 26, 2022
Mar. 27, 2021
Mar. 28, 2020
Mar. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options outstanding, Weighted average exercise price $ 1.09 $ 1.13 $ 1.14 $ 1.13
Options Outstanding [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options outstanding, Number outstanding 257,000      
Options outstanding, Weighted average remaining life (years) 4 years      
Options outstanding, Weighted average exercise price $ 1.09      
Options Outstanding [Member] | Range One [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options outstanding, Number outstanding 135,000      
Options outstanding, Weighted average remaining life (years) 3 years 6 months      
Options outstanding, Weighted average exercise price $ 0.78      
Options Outstanding [Member] | Range Two [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options outstanding, Number outstanding 122,000      
Options outstanding, Weighted average remaining life (years) 4 years 7 months 6 days      
Options outstanding, Weighted average exercise price $ 1.43      
Options Exercisable [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options exercisable, Number exercisable 257,000      
Options exercisable, Weighted average exercise price $ 1.09      
Options Exercisable [Member] | Range One [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options exercisable, Number exercisable 135,000      
Options exercisable, Weighted average exercise price $ 0.78      
Options Exercisable [Member] | Range Two [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options exercisable, Number exercisable 122,000      
Options exercisable, Weighted average exercise price $ 1.43