Investment Securities (Schedule of Unrealized Holding Gains (Losses)) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 01, 2019	Jun. 02, 2018	Jun. 03, 2017
Debt Securities, Available-for-sale [Line Items]
Unrealized holding gains (losses), net of tax on available-for-sale securities	$ 1,300	$ (767)	$ 110
Current Investments
Debt Securities, Available-for-sale [Line Items]
Unrealized holding gains (losses), net of tax on available-for-sale securities	1,307	(1,083)	(54)
Noncurrent Investments
Debt Securities, Available-for-sale [Line Items]
Unrealized holding gains (losses), net of tax on available-for-sale securities	$ (7)	$ 316	$ 164