Note 5 - Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Jul. 27, 2013	Jul. 28, 2012	Jul. 30, 2011
Details
Deferred Tax Assets, Valuation Allowance	$ 0	$ 0
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	11,466	9,682
Unrecognized Tax Benefits, Interest on Income Taxes Expense	1,211	1,008	817
Unrecognized Tax Benefits, Interest on Income Taxes Accrued	$ 5,820	$ 4,609

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

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-Subparagraph (c)

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- Definition

Amount of interest expense accrued for an underpayment of income taxes.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 15

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319

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Amount of interest expense for an underpayment of income taxes.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 15A

-Subparagraph (b)

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