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Segmented Information - Summary of Sales by Classes of Similar Products (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Mar. 28, 2020
Mar. 30, 2019
Mar. 31, 2018
Product Information [Line Items]      
Net sales, total $ 169,420 $ 151,049 $ 146,608
Retail Segment [Member] | Operating Segments [Member]      
Product Information [Line Items]      
Net sales, total 160,981 143,499 141,607
Other Segments [Member] | Operating Segments [Member]      
Product Information [Line Items]      
Net sales, total 8,439 7,550 5,001
Jewelry and Other [Member]      
Product Information [Line Items]      
Net sales, total 90,175 99,043 103,058
Jewelry and Other [Member] | Retail Segment [Member] | Operating Segments [Member]      
Product Information [Line Items]      
Net sales, total 81,736 91,493 98,057
Jewelry and Other [Member] | Other Segments [Member] | Operating Segments [Member]      
Product Information [Line Items]      
Net sales, total 8,439 7,550 5,001
Timepieces [Member]      
Product Information [Line Items]      
Net sales, total 79,245 52,006 43,550
Timepieces [Member] | Retail Segment [Member] | Operating Segments [Member]      
Product Information [Line Items]      
Net sales, total $ 79,245 $ 52,006 $ 43,550