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Recent Accounting Pronouncements - Additional Information (Detail) $ in Thousands	Dec. 24, 2015 USD ($)
Second Quarter of Fiscal 2016 [Member]
Deferred Income Taxes Assets And Liabilities Net [Line Items]
Net current deferred tax assets reclassified to non-current	$ 4,264

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- Definition

Amount of net current deferred tax assets reclassified to noncurrent.

+ References

No definition available.

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- Definition

Deferred Income Taxes Assets And Liabilities Net [Line Items]

+ References

No definition available.

+ Details

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Namespace Prefix:	jbss_
Data Type:	xbrli:stringItemType
Balance Type:	na
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- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: