Note 3 - Related Party Information - Wakefern (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jul. 26, 2014	Jul. 27, 2013	Jul. 28, 2012
Ownership interest in Wakefern	13.70%
Investment in Insure-Rite, Ltd	8.30%
Indebtedness to Wakefern	$ 1,741
Installment payments year two	667
Installment payments year three	518
Installment payments year four	446
Installment payments year five	110
Maximum per store investment	850
Per store investment increase	25	25
Additional investment	657	949
Vendor allowances and rebates	26,438	24,779	23,953
Support services incurred charges	32,808	29,973	27,991
Deposits Invested At Wakefern	52,891
Interest income earned on investments related entity	2,622	2,783	2,571
Matured Notes Receivable from Wakefern
Note Receivable Related Party	23,420
Note Receivable Rate Related Party	7.00%
Reinvested Notes Receivable from Wakefern
Note Receivable Related Party	$ 40,000
3.5 Year Related Party Note Receivable Rate above Prime
Note Receivable Rate Related Party	0.25%
5 Year Related Party Note Receivable Rate above Prime
Note Receivable Rate Related Party	1.25%