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Distribution Channel and Product Type Sales Mix (Details 1) | Jun. 28, 2012 | Jun. 30, 2011 | Jun. 24, 2010
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Summary of sales by product type as percentage of total gross sales |  |  |
Percentage of net sales | 100.00% | 100.00% | 100.00%
Peanuts [Member] |  |  |
Summary of sales by product type as percentage of total gross sales |  |  |
Percentage of net sales | 17.60% | 16.20% | 19.90%
Pecans [Member] |  |  |
Summary of sales by product type as percentage of total gross sales |  |  |
Percentage of net sales | 17.90% | 18.80% | 19.00%
Cashews and Mixed Nuts [Member] |  |  |
Summary of sales by product type as percentage of total gross sales |  |  |
Percentage of net sales | 20.30% | 21.00% | 21.10%
Walnuts [Member] |  |  |
Summary of sales by product type as percentage of total gross sales |  |  |
Percentage of net sales | 12.20% | 12.00% | 12.40%
Almonds [Member] |  |  |
Summary of sales by product type as percentage of total gross sales |  |  |
Percentage of net sales | 14.70% | 13.80% | 11.50%
Other [Member] |  |  |
Summary of sales by product type as percentage of total gross sales |  |  |
Percentage of net sales | 17.30% | 18.20% | 16.10%

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- Details
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Namespace Prefix: | jbss_
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- Definition The percentage of net product revenue to total net revenue from the sale of goods as of year end. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant