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Related Party Transactions - Balance Related to Related Parties (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Mar. 28, 2020
Mar. 30, 2019
Mar. 31, 2018
Expenses incurred:      
Management fees to related parties $ 0 $ 61 $ 173
Consultant fees to a related party 229 231 43
Expense reimbursement to a related party 68 167 315
Interest expense on cash advance received from controlling shareholder 426 455 491
Compensation paid to a related party 345 385 379
Accounts payable to related parties 231 142 5
Interest payable on cash advance received from controlling shareholder $ 448 $ 90 $ 27