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Related Party Transactions - Balance Related to Related Parties (Detail) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2018
Mar. 25, 2017
Mar. 26, 2016
Related Party Transactions [Abstract]      
Purchases of inventory from supplier related to a shareholder     $ 503
Management fees to related parties $ 135 $ 154 155
Consultant fees to a related party 33 150 173
Expense reimbursement to a related party 245 178 201
Interest expense on cash advance received from controlling shareholder 382 165 165
Compensation paid to a related party 295 67  
Accounts payable to a supplier related to shareholder     17
Accounts payable to related parties 4 57 38
Interest payable on cash advance received from controlling shareholder $ 21 $ 24 $ 25