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Investment in Leasing Operations: (Details 3) (USD $)
Dec. 27, 2014
Dec. 28, 2013
Direct Financing and Sales-Type Leases, Minimum Lease Payments Receivable    
2015 $ 23,924,700us-gaap_CapitalLeasesFutureMinimumPaymentsReceivableRemainderOfFiscalYear  
2016 13,166,600us-gaap_CapitalLeasesFutureMinimumPaymentsReceivableInTwoYears  
2017 3,628,400us-gaap_CapitalLeasesFutureMinimumPaymentsReceivableInThreeYears  
2018 20,200us-gaap_CapitalLeasesFutureMinimumPaymentsReceivableInFourYears  
Total 40,739,900us-gaap_CapitalLeasesFutureMinimumPaymentsReceivable 35,450,900us-gaap_CapitalLeasesFutureMinimumPaymentsReceivable
Direct Financing and Sales-Type Leases, Income Amortization    
2015 4,560,000wina_CapitalLeasesFutureAmortizationNetInvestmentInDirectFinancingAndSalesTypeLeasesUnearnedLeaseIncomeNetOfInitialDirectCostsDeferredRemainderOfFiscalYear  
2016 1,373,200wina_CapitalLeasesFutureAmortizationNetInvestmentInDirectFinancingAndSalesTypeLeasesUnearnedLeaseIncomeNetOfInitialDirectCostsDeferredInTwoYears  
2017 126,900wina_CapitalLeasesFutureAmortizationOfNetInvestmentInDirectFinancingAndSalesTypeLeasesUnearnedLeaseIncomeNetOfInitialDirectCostsDeferredInThreeYears  
2018 1,000wina_CapitalLeasesFutureAmortizationOfNetInvestmentInDirectFinancingAndSalesTypeLeasesUnearnedLeaseIncomeNetOfInitialDirectCostsDeferredInFourYears  
Total 6,061,100wina_CapitalLeasesFutureAmortizationOfUnearnedLeaseIncome  
Operating Leases, Minimum Lease Payments Receivable    
2015 51,200us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableRemainderOfFiscalYear  
Total $ 51,200us-gaap_OperatingLeasesFutureMinimumPaymentsReceivable