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Segmented Information - Schedule of Sales to External Customers and Long-Lived Assets by Geographical Areas (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Mar. 25, 2017
Mar. 26, 2016
Mar. 28, 2015
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net sales, total $ 286,921 $ 285,826 $ 301,637
Long-lived assets, total 23,180 29,912 29,029
Canada [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net sales, total 116,436 128,651 143,384
Long-lived assets, total 13,921 18,610 17,072
United States [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net sales, total 170,485 157,175 158,253
Long-lived assets, total 9,259 11,302 11,957
Jewelry and Other [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net sales, total 122,405 127,220 141,781
Timepieces [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net sales, total $ 164,516 $ 158,606 $ 159,856