Note 8 - Pension Plans (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Jul. 28, 2013	Jul. 28, 2012	Jul. 30, 2011	Jul. 31, 2010
Defined Benefit Plan, Amortization of Net Gains (Losses)	$ 2,118
Defined Benefit Plan, Accumulated Benefit Obligation		55,873	43,181
Defined Benefit Plan, Estimated Future Employer Contributions in Next Fiscal Year	3,000
United Food and Commercial Workers Local 152 Retail Meat Pension Fund Contribution			644	785
Multiemployer Plans, Withdrawal Obligation		7,028
United Food And Commercial Workers Local 152 Retail Meat Pension Fund Pre-tax Benefit		646
Other Postretirement Multiemployer Benefit Plans Contributions		20,062	18,007	17,070
Defined Contribution Plan, Cost Recognized		331	309	301
Union sponsored defined contribution		$ 220	$ 53	$ 0

For defined benefit pension plans, the actuarial present value of benefits (whether vested or nonvested) attributed by the pension benefit formula to employee service rendered before a specified date and based on employee service and compensation (if applicable) before that date. The accumulated benefit obligation differs from the projected benefit obligation in that it includes no assumption about future compensation levels. For plans with flat-benefit or nonpay-related pension benefit formulas, the accumulated benefit obligation and the projected benefit obligation are the same.

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The amounts in accumulated other comprehensive income related to gains and losses that are not recognized immediately and are expected to be recognized as components of net periodic benefit cost over the next fiscal year that follows the most recent annual statement of financial position presented.

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