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Management's Interim Financial Statement Representation: (Details)	6 Months Ended
	Jun. 29, 2019 item
Minimum
Number of Weeks in Fiscal Year	52
Maximum
Number of Weeks in Fiscal Year	53

X

- Definition

Represents the number of weeks based on which the entity reports its annual results of operations.

+ References

No definition available.

+ Details

Name:	wina_NumberOfWeeksInFiscalYear
Namespace Prefix:	wina_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: