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Capital Stock - Summary of Common Stock Outstanding (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Mar. 26, 2022
Mar. 27, 2021
Class of Stock [Line Items]    
Beginning Balance, Shares 18,328,943 17,970,881
Exercise of stock options and warrants, Shares 184,470 358,062
Ending Balance, Shares 18,513,413 18,328,943
Balance as of beginning balance $ 95,116 $ 93,368
Exercise of stock options and warrants 522 1,748
Balance as of ending balance $ 95,638 $ 95,116
Class A Common Stock [Member]    
Class of Stock [Line Items]    
Beginning Balance, Shares 10,610,973 10,252,911
Exercise of stock options and warrants, Shares 184,470 358,062
Ending Balance, Shares 10,795,443 10,610,973
Balance as of beginning balance $ 37,361 $ 35,613
Exercise of stock options and warrants 522 1,748
Balance as of ending balance $ 37,883 $ 37,361
Class B Common Stock [Member]    
Class of Stock [Line Items]    
Beginning Balance, Shares 7,717,970 7,717,970
Exercise of stock options and warrants, Shares 0 0
Ending Balance, Shares 7,717,970 7,717,970
Balance as of beginning balance $ 57,755 $ 57,755
Exercise of stock options and warrants 0 0
Balance as of ending balance $ 57,755 $ 57,755