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Shareholders’ Equity and Stock-Based Compensation (Details1) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	May 30, 2013	May 31, 2012	May 26, 2011
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding
Outstanding at beginning of year	2,006	1,873	1,729
Granted	306	328	314
Exercised	(202)	(121)	(120)
Forfeited	(161)	(74)	(50)
Outstanding at end of year	1,949	2,006	1,873
Exercisable at end of year	1,113	1,122	999
Weighted-average fair value of options granted during year	$ 5.20	$ 3.96	$ 4.85
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price
Outstanding at beginning of year	$ 13.91	$ 14.31	$ 14.33
Granted	$ 13.12	$ 10.00	$ 11.87
Exercised	$ 10.82	$ 10.61	$ 8.71
Forfeited	$ 14.48	$ 11.98	$ 13.31
Outstanding at end of year	$ 14.03	$ 13.91	$ 14.31
Exercisable at end of year	$ 15.47	$ 15.13	$ 14.46

X

- Definition

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.

+ 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)(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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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(iii)

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- Definition

For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(iv)(3)-(4)

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- Definition

Gross number of share options (or share units) granted during the period.

+ References

No definition available.

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

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-Paragraph 2

-Subparagraph (d)(1)

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- Definition

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

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

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- Definition

Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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- Definition

Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Number of share options (or share units) exercised during the current period.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3



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