Investments - Unrealized Gains and Losses and Fair Value (Details) - USD ($) $ in Thousands	Jan. 27, 2024	Apr. 29, 2023
Summary of Investment Holdings [Line Items]
Gross Unrealized  Gains	$ 1,336	$ 2,551
Gross Unrealized  Losses	(128)	(723)
Fair Value	20,835	24,903
Equity securities
Summary of Investment Holdings [Line Items]
Gross Unrealized  Gains	358	1,338
Gross Unrealized  Losses	0	(103)
Fair Value	3,906	6,853
Fixed income
Summary of Investment Holdings [Line Items]
Gross Unrealized  Gains	174	42
Gross Unrealized  Losses	(120)	(620)
Fair Value	13,045	14,039
Other
Summary of Investment Holdings [Line Items]
Gross Unrealized  Gains	804	1,171
Gross Unrealized  Losses	(8)	0
Fair Value	$ 3,884	$ 4,011