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Segmented Information - Summary of Sales by Classes of Similar Products (Detail) - USD ($) $ in Thousands | 12 Months Ended
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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)

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