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Related Party Transactions - Balance Related to Related Parties (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Mar. 30, 2019
Mar. 31, 2018
 [1]
Mar. 25, 2017
 [1]
Expenses incurred:      
Management fees to related parties $ 61 $ 173 $ 202
Consultant fees to a related party 231 43 197
Expense reimbursement to a related party 167 315 234
Interest expense on cash advance received from controlling shareholder 455 491 217
Compensation paid to a related party 385 379 87
Accounts payable to related parties 142 5 77
Interest payable on cash advance received from controlling shareholder $ 90 $ 27 $ 32
[1] Recast (refer to note 1)