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Investment in Leasing Operations (Details 5) (USD $)	Jun. 30, 2012	Dec. 31, 2011
Investment in leasing operations
Total investment in direct financing and sales-type leases	$ 32,394,400	$ 30,001,100
Investment in leases
Investment in leasing operations
0-60 Days Delinquent and Accruing	32,390,100	29,001,900
61-90 Days Delinquent and Accruing		980,400
Non-Accrual	4,300	18,800
Total investment in direct financing and sales-type leases	32,394,400	30,001,100
Middle-Market
Investment in leasing operations
0-60 Days Delinquent and Accruing	30,015,600	25,650,500
61-90 Days Delinquent and Accruing		932,100
Total investment in direct financing and sales-type leases	30,015,600	26,582,600
Small-Ticket
Investment in leasing operations
0-60 Days Delinquent and Accruing	2,374,500	3,351,400
61-90 Days Delinquent and Accruing		48,300
Non-Accrual	4,300	18,800
Total investment in direct financing and sales-type leases	$ 2,378,800	$ 3,418,500

X

- Definition

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

+ References

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=7512638&loc=d3e5111-111524

+ Details

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

X

- Details

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

X

- 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

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

X

- Definition

Financing receivables that are less than 61 days past due.

+ References

No definition available.

+ Details

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

X

- Definition

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

+ References

No definition available.

+ Details

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Namespace Prefix:	wina_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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