Investment in Leasing Operations: Minimum Lease Payments Receivable (Details) - USD ($)	Dec. 26, 2020	Dec. 28, 2019
Direct Financing and Sales-Type Leases, Minimum Lease Payments Receivable
2021	$ 9,880,100
2022	2,584,500
2023	71,700
Total	12,536,300	$ 26,001,200
Direct Financing and Sales-Type Leases, Income Amortization
2021	1,286,000
2022	151,400
2023	2,100
Total	$ 1,439,500

No definition available.

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

- Definition

Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 30
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=121576215&loc=SL77919391-209981

+ Details

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

- Definition

Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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

- Definition

Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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

- Definition

Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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

- Definition

The aggregated amount of amortization of unearned lease income, net of initial direct costs deferred, related to net investment in sales-type and direct financing leases expected to be recognized by the entity.

+ References

No definition available.

+ Details

Name:	wina_SalesTypeAndDirectFinancingLeasesFutureAmortizationUnearnedLeaseIncomeNetOfInitialDirectCostsDeferred
Namespace Prefix:	wina_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Sales-type and Direct Financing Leases, Future Amortization, Unearned Lease Income Net of Initial Direct Costs Deferred [Abstract].

+ References

No definition available.

+ Details

Name:	wina_SalesTypeAndDirectFinancingLeasesFutureAmortizationUnearnedLeaseIncomeNetOfInitialDirectCostsDeferredAbstract
Namespace Prefix:	wina_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of amortization of unearned lease income, net of initial direct costs deferred, related to net investment in sales-type and direct financing leases expected to be recognized in third fiscal year following current fiscal year.

+ References

No definition available.

+ Details

Name:	wina_SalesTypeAndDirectFinancingLeasesFutureAmortizationUnearnedLeaseIncomeNetOfInitialDirectCostsDeferredInThreeYears
Namespace Prefix:	wina_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

+ References

No definition available.

+ Details

Name:	wina_SalesTypeAndDirectFinancingLeasesFutureAmortizationUnearnedLeaseIncomeNetOfInitialDirectCostsDeferredInTwoYears
Namespace Prefix:	wina_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

+ References

No definition available.

+ Details

Name:	wina_SalesTypeAndDirectFinancingLeasesFutureAmortizationUnearnedLeaseIncomeNetOfInitialDirectCostsDeferredNextTwelveMonths
Namespace Prefix:	wina_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant