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Segmented Information - Summary of Sales by Classes of Similar Products (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Mar. 30, 2019
Mar. 31, 2018
 [1]
Mar. 25, 2017
 [1]
Product Information [Line Items]      
Net sales, total $ 151,049 $ 146,608 $ 152,992
Retail Segment [Member] | Operating Segments [Member]      
Product Information [Line Items]      
Net sales, total 143,499 141,607 149,418
Other Segments [Member] | Operating Segments [Member]      
Product Information [Line Items]      
Net sales, total 7,550 5,001 3,574
Jewelry and Other [Member]      
Product Information [Line Items]      
Net sales, total 99,043 103,058 105,657
Jewelry and Other [Member] | Retail Segment [Member] | Operating Segments [Member]      
Product Information [Line Items]      
Net sales, total 91,493 98,057 102,083
Jewelry and Other [Member] | Other Segments [Member] | Operating Segments [Member]      
Product Information [Line Items]      
Net sales, total 7,550 5,001 3,574
Timepieces [Member]      
Product Information [Line Items]      
Net sales, total 52,006 43,550 47,335
Timepieces [Member] | Retail Segment [Member] | Operating Segments [Member]      
Product Information [Line Items]      
Net sales, total $ 52,006 $ 43,550 $ 47,335
[1] Recast (refer to note 1)