Investments - Components (Details) - USD ($) $ in Thousands	Oct. 28, 2023	Apr. 29, 2023
Summary of Investment Holdings [Line Items]
Total investments	$ 21,341	$ 24,903
Investments to enhance returns on cash
Summary of Investment Holdings [Line Items]
Total investments	8,652	11,617
Investments to fund compensation/retirement plans
Summary of Investment Holdings [Line Items]
Total investments	12,689	13,286
Short-term investments
Summary of Investment Holdings [Line Items]
Marketable Securities	6,500	5,043
Held-to-maturity investments	1,285	1,351
Total investments	7,785	6,394
Long-term investments
Summary of Investment Holdings [Line Items]
Marketable Securities	$ 13,556	$ 18,509