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Document and Entity Information - shares	9 Months Ended
	Sep. 24, 2016	Oct. 07, 2016
Document and Entity Information
Entity Registrant Name	WINMARK CORP
Entity Central Index Key	0000908315
Document Type	10-Q
Document Period End Date	Sep. 24, 2016
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		4,122,037
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q3

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