Note 8 - Pension Plans: Schedule of Amounts Recognized In Plan Assets and Benefit Obligations Recognized (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jul. 28, 2012	Jul. 30, 2011	Jul. 31, 2010
Defined Benefit Plan, Benefit Obligation, Beginning Balance	$ 55,480	$ 45,855
Defined Benefit Plan, Service Cost	2,694	2,903	2,390
Defined Benefit Plan, Interest Cost	2,701	2,575	2,309
Defined Benefit Plan, Benefits Paid	(1,023)	(584)
Defined Benefit Plan Actuarial (Gains) Losses	7,327	4,731
Defined Benefit Plan, Benefit Obligation, Ending Balance	67,179	55,480	45,855
Defined Benefit Plan, Fair Value of Plan Assets, Beginning Balance	33,967	27,556
Defined Benefit Plan, Actual Return on Plan Assets	1,245	3,880
Defined Benefit Plan, Contributions by Employer	3,227	3,115
Defined Benefit Plan, Fair Value of Plan Assets, Ending Balance	37,416	33,967	27,556
Defined Benefit Plan, Funded Status of Plan	(29,763)	(21,513)
Pension liabilities	(29,763)	(21,513)
Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance	(15,474)	(11,142)
Accumulated Defined Benefit Plan Actuarial Net Gains Losses	25,783	18,533
Accumulated Other Comprehensive Income Defined Benefit Plan Net Prior Service Costs Credit Arising During Period Net Of Tax	8	16
Accumulated Defined Benefit Plan Amounts Recognized In Other Comprehensive Income Net Gain Loss Before Tax	$ 25,791	$ 18,549