Investment Securities (Tables)

3 Months Ended

Aug. 29, 2015

Investment Securities [Abstract]

Schedule Of Investment Securities

August 29, 2015	Amortized Cost		Unrealized Gains		Unrealized Losses		Estimated Fair Value
US government and agency obligations	$	9,605	$	13	$	-	$	9,618
Municipal bonds		74,795		197		-		74,992
Commercial paper		11,989		-		3		11,986
Corporate bonds		169,981		-		324		169,657
Foreign government obligations		1,037		-		2		1,035
Asset backed securities		16,454		-		22		16,432
Mutual funds		2,761		4		-		2,765
Total current investment securities	$	286,622	$	214	$	351	$	286,485
Mutual funds		1,207		450		-		1,657
Total noncurrent investment securities	$	1,207	$	450	$	-	$	1,657

May 30, 2015	Amortized Cost		Unrealized Gains		Unrealized Losses		Estimated Fair Value
US government and agency obligations	$	9,609	$	21	$	-	$	9,630
Municipal bonds		76,225		83		-		76,308
Certificates of deposit		2,001		1		-		2,002
Commercial paper		7,491		5		-		7,496
Corporate bonds		136,411		-		47		136,364
Foreign government obligations		1,042		3		-		1,045
Asset backed securities		14,356		-		4		14,352
Mutual funds		2,761		3		-		2,764
Total current investment securities	$	249,896	$	116	$	51	$	249,961
Mutual funds		1,199		548		-		1,747
Total noncurrent investment securities	$	1,199	$	548	$	-	$	1,747

Schedule Of Contractual Maturities Of Investment Securities

		Estimated Fair Value
Within one year	$	159,001
After 1-5 years		127,484
After 5-10 years		-
Total	$	286,485