The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(iii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

+ References

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- Definition

Number of options outstanding, including both vested and non-vested options.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(i)-(ii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(i)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (e)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Shareholders' Equity and Stock-Based Compensation (Details 2) - $ / shares	12 Months Ended
	May. 28, 2015	May. 29, 2014	May. 30, 2013	May. 29, 2012
Options outstanding	1,526,000	1,566,000	1,949,000	2,006,000
Weighted-average exercise price of options outstanding	$ 14.75	$ 14.06	$ 14.03	$ 13.91
Options exercisable	840,000	909,000	1,113,000
Weighted-average exercise price of options exercisable	$ 14.90	$ 15.29	$ 15.47
Dollar Eight Point Five Two To Dollar Twelve Point Seven One [Member]
Options outstanding	330
Weighted-average exercise price of options outstanding	$ 10.87
Weighted-average remaining contractual life of options outstanding	5 years 7 months 6 days
Options exercisable	219
Weighted-average exercise price of options exercisable	$ 11.03
Doller Twelve Point Seventy Two To Dollar Seventeen Point Seventy Three [Member]
Options outstanding	750
Weighted-average exercise price of options outstanding	$ 13.86
Weighted-average remaining contractual life of options outstanding	5 years 9 months 18 days
Options exercisable	422
Weighted-average exercise price of options exercisable	$ 14.45
Dollar Seventeen Point Seventy Four To Dollar Twenty Three Point Thirty Seven [Member]
Options outstanding	446
Weighted-average exercise price of options outstanding	$ 19.13
Weighted-average remaining contractual life of options outstanding	6 years
Options exercisable	199
Weighted-average exercise price of options exercisable	$ 20.12