Investment in Leasing Operations: Investment Aging (Details) - USD ($)	Mar. 26, 2016	Dec. 26, 2015
Investment in leasing operations
0-60 Days Delinquent and Accruing	$ 39,039,900	$ 39,802,400
61-90 Days Delinquent and Accruing		4,200
Non-Accrual	2,000
Total investment in direct financing and sales-type leases	39,041,900	39,806,600
Middle-Market
Investment in leasing operations
0-60 Days Delinquent and Accruing	37,881,000	38,616,600
Total investment in direct financing and sales-type leases	37,881,000	38,616,600
Small-Ticket
Investment in leasing operations
0-60 Days Delinquent and Accruing	1,158,900	1,185,800
61-90 Days Delinquent and Accruing		4,200
Non-Accrual	2,000
Total investment in direct financing and sales-type leases	$ 1,160,900	$ 1,190,000

Recorded investment in financing receivables that are on nonaccrual status as of the balance sheet date.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5111-111524

+ Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The lessor's asset under sales type and direct financing leases. The investment in direct financing and sales-type leases, as of the balance sheet date, consisting of: (a) minimum lease payments due on direct financing leases, (b) unguaranteed residual value, and (c) any unamortized initial direct costs on direct financing leases; less: (i) estimated executory costs, (ii) unearned income, but before deducting the accumulated allowance for uncollectible minimum lease payments.

+ References

No definition available.

+ Details

Name:	wina_CapitalLeasesInvestmentInDirectFinancingAndSalesTypeLeasesGross
Namespace Prefix:	wina_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Financing receivables that are less than 61 days past due.

+ References

No definition available.

+ Details

Name:	wina_FinancingReceivableRecordedInvestment0To60DaysPastDue
Namespace Prefix:	wina_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Financing receivables that are less than 91 days past due but more than 60 days past due.

+ References

No definition available.

+ Details

Name:	wina_FinancingReceivableRecordedInvestment61To90DaysPastDue
Namespace Prefix:	wina_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=wina_MiddleMarketLeasesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=wina_SmallTicketLeasesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: