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Note 3 - Related Party Information - Wakefern (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Jul. 27, 2013 | Jul. 28, 2012 | Jul. 30, 2011
Details |  |  |
Ownership interest in Wakefern | 13.70% |  |
Investment in Insure-Rite, Ltd | 8.10% |  |
Indebtedness to Wakefern | $ 2,319 |  |
Installment payments current | 600 |  |
Installment payments year two | 667 |  |
Installment payments year three | 518 |  |
Installment payments year four | 446 |  |
Installment payments year five | 88 |  |
Maximum per store investment | 825 |  |
Per store investment increase | 25 | 25 |
Additional investment | 949 | 622 |
Vendor allowances and rebates | 24,779 | 23,953 | 17,724
Support services incurred charges | 29,973 | 27,991 | 23,453
Note receivable related party | 22,421 |  |
Note receivable rate related party | 7.00% |  |
Deposits Invested At Wakefern | 85,222 |  |
Interest income earned on investments related entity | $ 2,783 | $ 2,571 | $ 2,207

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