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Pension - Projected benefit obligation and fair value of plan assets (Details) - USD ($) $ in Thousands | May 03, 2021 | Apr. 30, 2022
--- | --- | ---
Pension |  |
Defined Benefit Plan, Funding Status [Extensible List] | us-gaap:UnfundedPlanMember |
Pension Plan |  |
Pension |  |
Projected benefit obligation |  | $ (3,120)
Fair value of plan assets |  | 3,138
Funded status of the plan |  | $ 18

X
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