Note 8 - Pension Plans: Schedule of Allocation of Plan Assets (Details) (USD $) In Thousands, unless otherwise specified	Jul. 26, 2014		Jul. 27, 2013
Pension asset - cash	$ 812		$ 1,747
Pension asset - equity securities - company stock	541		837
Pension asset - equity securities - U.S. large cap	17,095	[1]	16,385	[1]
Pension asset - equity securities - U.S. small/mid cap	5,916	[2]	6,762	[2]
Pension asset - equity securities - international	6,963	[3]	4,580	[3]
Pension asset - equity securities - emerging markets	1,267	[4]	1,074	[4]
Pension asset - fixed income securities - u.s. treasuries	9,399	[5]	7,966	[5]
Pension asset - fixed income securities - mortgage backed	2,207	[5]	1,877	[5]
Pension asset - fixed income securities - corporate bonds	5,262	[5]	1,766	[5]
Pension asset - fixed income securities - emerging markets	667	[6]	588	[6]
Pension asset - total	50,129		43,582
Fair Value, Inputs, Level 1
Pension asset - cash	812		1,747
Pension asset - equity securities - company stock	541		837
Pension asset - equity securities - U.S. large cap	17,095	[1]	16,385	[1]
Pension asset - equity securities - U.S. small/mid cap	5,916	[2]	6,762	[2]
Pension asset - equity securities - international	6,963	[3]	4,580	[3]
Pension asset - equity securities - emerging markets	1,267	[4]	1,074	[4]
Pension asset - fixed income securities - u.s. treasuries	9,399	[5]	7,966	[5]
Pension asset - fixed income securities - corporate bonds	1,857	[5]
Pension asset - fixed income securities - emerging markets	667	[6]	588	[6]
Pension asset - total	44,517		39,939
Fair Value, Inputs, Level 2
Pension asset - fixed income securities - mortgage backed	2,207	[5]	1,877	[5]
Pension asset - fixed income securities - corporate bonds	3,405	[5]	1,766	[5]
Pension asset - total	$ 5,612		$ 3,643

[1] Includes directly owned securities and mutual funds, primarily low-cost equity index funds not actively managed that track the S&P 500.

[2] Includes directly owned securities and mutual funds, which invest in diversified portfolios of publicly traded U.S. common stocks of small and medium cap companies.

[3] Includes directly owned securities and mutual funds, which invest in diversified portfolios of publicly traded common stocks of large, non-U.S. companies.

[4] Consists of mutual and exchange traded funds which invest in non-U.S. stocks in emerging markets.

[5] Includes directly owned securities and mutual funds.

[6] Consists of exchange traded funds which invest in non-U.S. bonds in emerging markets.