XML 35 R1.htm IDEA: XBRL DOCUMENT v3.3.0.814
Document and Entity Information - shares
9 Months Ended
Sep. 26, 2015
Oct. 12, 2015
Document and Entity Information    
Entity Registrant Name WINMARK CORP  
Entity Central Index Key 0000908315  
Document Type 10-Q  
Document Period End Date Sep. 26, 2015  
Amendment Flag false  
Current Fiscal Year End Date --12-26  
Entity Current Reporting Status Yes  
Entity Filer Category Accelerated Filer  
Entity Common Stock, Shares Outstanding   4,128,031
Document Fiscal Year Focus 2015  
Document Fiscal Period Focus Q3