Consolidated Statements of Stockholders' Equity (Parentheticals) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended	12 Months Ended
Apr. 24, 2015	Apr. 25, 2014	Apr. 24, 2015	Apr. 25, 2014
Cash dividends paid per share	$ 0.31	$ 0.31	$ 1.24	$ 1.205
Treasury Stock
Shares held in rabbi trust	237	144	237	144
Capital in Excess of Par Value
Value of shares held in deferred trust	$ 10,141	$ 8,753	$ 10,141	$ 8,753

Aggregate dividends paid during the period for each share of common stock outstanding.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

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+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 710

-SubTopic 10

-Section 25

-Paragraph 17

-URI http://asc.fasb.org/extlink&oid=6409836&loc=d3e19850-108362

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

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

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-Name Accounting Standards Codification

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