Note 8 - Pension Plans: Schedule of Net Benefit Costs Recognized (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jul. 28, 2012	Jul. 30, 2011	Jul. 31, 2010
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, Expected Return on Plan Assets	(2,538)	(2,067)	(1,720)
Defined Benefit Plan Amortization Of (Gains) Losses	1,371	1,709	1,231
Defined Benefit Plan, Amortization of Net Prior Service Cost (Credit)	8	8	8
Defined Benefit Plan, Net Periodic Benefit Cost	$ 4,236	$ 5,128	$ 4,218