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Share Based Compensation (Summary Of Restricted Stock) (Details) - Restricted Stock [Member] - $ / shares
12 Months Ended
Mar. 27, 2021
Mar. 28, 2020
Mar. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares, Nonvested 55,730    
Shares, Granted 35,019    
Shares, Vested (26,333)    
Shares, Forfeited (12,703)    
Shares, Nonvested 51,713 55,730  
Weighted-average grant-date fair value per share, Nonvested $ 64.96    
Weighted-average grant-date fair value per share, Granted 52.75 $ 75.33 $ 67.80
Weighted-average grant-date fair value per share, Vested 56.52    
Weighted-average grant-date fair value per share, Forfeited 63.90    
Weighted-average grant-date fair value per share, Nonvested $ 61.24 $ 64.96