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. 26, 2014	Jul. 27, 2013	Jul. 28, 2012
Details
Defined Benefit Plan, Benefit Obligation, Beginning Balance	$ 63,644	$ 67,179
Defined Benefit Plan, Service Cost	2,926	3,279	2,694
Defined Benefit Plan, Interest Cost	2,775	2,479	2,701
Defined Benefit Plan, Benefits Paid	(1,445)	(2,422)
Defined Benefit Plan Actuarial (Gains) Losses	9,190	(6,871)
Defined Benefit Plan, Benefit Obligation, Ending Balance	77,090	63,644	67,179
Defined Benefit Plan, Fair Value of Plan Assets, Beginning Balance	43,582	37,416
Defined Benefit Plan, Actual Return on Plan Assets	4,672	5,334
Defined Benefit Plan, Contributions by Employer	3,320	3,254
Defined Benefit Plan, Fair Value of Plan Assets, Ending Balance	50,129	43,582	37,416
Defined Benefit Plan, Funded Status of Plan	(26,961)	(20,062)
Accrued Salaries	(3,085)
Pension liabilities	(23,876)	(20,062)
Accumulated other comprehensive loss	12,465	8,467
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, before Tax	$ 21,018	$ 14,111