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Accounts Receivable and Other Receivables - Schedule of Continuity of Allowance for Doubtful Accounts (Detail) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2018
Mar. 25, 2017
Mar. 26, 2016
Receivables [Abstract]      
Beginning balance $ 214 $ 166 $ 218
Additional provision recorded 184 61  
Net write-offs   (13) (52)
Ending balance $ 398 $ 214 $ 166