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Related Party Transactions - Balance Related to Related Parties (Detail)
12 Months Ended
Mar. 26, 2016
USD ($)
Mar. 28, 2015
USD ($)
Mar. 29, 2014
USD ($)
Feb. 28, 2015
USD ($)
Feb. 28, 2015
CAD
Related Party Transactions [Abstract]          
Purchases of inventory from supplier related to shareholder $ 503,000 $ 189,000 $ 0    
Management fees to related parties 155,000 238,000 188,000    
Consultant fees to a related party 173,000 175,000 155,000    
Expense reimbursement to a related party 201,000 241,000 237,000    
Interest expense on cash advance received from controlling shareholder 165,000 165,000 164,000    
Wholesale distribution service payments to a related party     1,000    
Accounts payable to supplier related to shareholder 17,000        
Accounts payable to related parties 38,000 447,000 57,000 $ 60,000 CAD 75,000
Interest payable on cash advance received from controlling shareholder $ 25,000 $ 136,000 $ 13,000