Organization and Business: (Details) - item	12 Months Ended
Dec. 26, 2020	Dec. 28, 2019	Dec. 29, 2018
Organization and Business:
Number of weeks in a fiscal year	52	52	52

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

No definition available.

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