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Investment in Leasing Operations: (Details 5) (USD $)
Dec. 27, 2014
Dec. 28, 2013
Investment In Leases    
Total investment in direct financing and sales-type leases $ 44,136,800wina_CapitalLeasesInvestmentInDirectFinancingAndSalesTypeLeasesGross $ 38,228,700wina_CapitalLeasesInvestmentInDirectFinancingAndSalesTypeLeasesGross
Allowance for Credit Losses    
Total 386,000wina_CapitalLeasesNetInvestmentInDirectFinancingAndSalesTypeLeasesAllowanceForUncollectibleMinimumLeasePayments 822,700wina_CapitalLeasesNetInvestmentInDirectFinancingAndSalesTypeLeasesAllowanceForUncollectibleMinimumLeasePayments
Investment in leases    
Investment In Leases    
Collectively evaluated for loss potential 44,136,800us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_FinanceLeasesFinancingReceivableMember
38,228,700us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_FinanceLeasesFinancingReceivableMember
Total investment in direct financing and sales-type leases 44,136,800wina_CapitalLeasesInvestmentInDirectFinancingAndSalesTypeLeasesGross
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_FinanceLeasesFinancingReceivableMember
38,228,700wina_CapitalLeasesInvestmentInDirectFinancingAndSalesTypeLeasesGross
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_FinanceLeasesFinancingReceivableMember
Allowance for Credit Losses    
Collectively evaluated for loss potential 386,000us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_FinanceLeasesFinancingReceivableMember
822,700us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_FinanceLeasesFinancingReceivableMember
Total $ 386,000wina_CapitalLeasesNetInvestmentInDirectFinancingAndSalesTypeLeasesAllowanceForUncollectibleMinimumLeasePayments
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_FinanceLeasesFinancingReceivableMember
$ 822,700wina_CapitalLeasesNetInvestmentInDirectFinancingAndSalesTypeLeasesAllowanceForUncollectibleMinimumLeasePayments
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_FinanceLeasesFinancingReceivableMember