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Consolidated Statements of Earnings (Unaudited) (Parentheticals) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Mar. 28, 2015 | Mar. 29, 2014 | Mar. 28, 2015 | Mar. 29, 2014
Allocated Share Based Compensation | $ 316 us-gaap_AllocatedShareBasedCompensationExpense | $ 440 us-gaap_AllocatedShareBasedCompensationExpense | $ 748 us-gaap_AllocatedShareBasedCompensationExpense | $ 885 us-gaap_AllocatedShareBasedCompensationExpense
Cost Of Goods Sold [Member] |  |  |  |
Allocated Share Based Compensation | 108 us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_IncomeStatementLocationAxis = jjsf_CostOfGoodsSoldMember | 117 us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_IncomeStatementLocationAxis = jjsf_CostOfGoodsSoldMember | 220 us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_IncomeStatementLocationAxis = jjsf_CostOfGoodsSoldMember | 235 us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_IncomeStatementLocationAxis = jjsf_CostOfGoodsSoldMember
Marketing [Member] |  |  |  |
Allocated Share Based Compensation | 158 us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_IncomeStatementLocationAxis = jjsf_MarketingMember | 170 us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_IncomeStatementLocationAxis = jjsf_MarketingMember | 330 us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_IncomeStatementLocationAxis = jjsf_MarketingMember | 340 us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_IncomeStatementLocationAxis = jjsf_MarketingMember
Distribution [Member] |  |  |  |
Allocated Share Based Compensation | 10 us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_IncomeStatementLocationAxis = jjsf_DistributionMember | 11 us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_IncomeStatementLocationAxis = jjsf_DistributionMember | 21 us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_IncomeStatementLocationAxis = jjsf_DistributionMember | 21 us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_IncomeStatementLocationAxis = jjsf_DistributionMember
Administrative [Member] |  |  |  |
Allocated Share Based Compensation | $ 209 us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_IncomeStatementLocationAxis = jjsf_AdministrativeMember | $ 227 us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_IncomeStatementLocationAxis = jjsf_AdministrativeMember | $ 438 us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_IncomeStatementLocationAxis = jjsf_AdministrativeMember | $ 453 us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_IncomeStatementLocationAxis = jjsf_AdministrativeMember

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