Investment Securities (Tables)

12 Months Ended

May 30, 2020

Investments, Debt and Equity Securities [Abstract]

Schedule Of Investment Securities

໿

May 30, 2020	Amortized Cost		Unrealized Gains		Unrealized Losses		Estimated Fair Value
Municipal bonds	$	16,093	$	86	$	—	$	16,179
Commercial paper	6,965		17		—		6,982
Corporate bonds	125,594		1,274		—		126,868
Certificates of deposits	1,492		—		—		1,492
Asset backed securities	2,629		13		—		2,642
Total current investment securities	$	152,773	$	1,390	$	—	$	154,163
Mutual funds	$	2,005	$	744	$	—	$	2,749
Total noncurrent investment securities	$	2,005	$	744	$	—	$	2,749

໿

June 1, 2019	Amortized Cost		Unrealized Gains		Unrealized Losses		Estimated Fair Value
US government and agency obligations	$	30,896	$	78	$	—	$	30,974
Municipal bonds	50,220		133		—		50,353
Commercial paper	9,953		—		8		9,945
Corporate bonds	147,068		94		—		147,162
Certificates of deposits	6,149		—		1		6,148
Asset backed securities	5,589		10		—		5,599
Total current investment securities	$	249,875	$	315	$	9	$	250,181
Mutual funds	$	2,331	$	1,026	$	—	$	3,357
Total noncurrent investment securities	$	2,331	$	1,026	$	—	$	3,357

Schedule Of Contractual Maturities Of Investment Securities

Contractual maturities of investment securities at May 30, 2020, are as follows (in thousands):

	Estimated Fair Value
Within one year	$	88,381
1-5 years	65,782
Total	$	154,163