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Intangible Assets: Franchise rights (Details)
 1 Months Ended 12 Months Ended
Jun. 30, 2022
USD ($)
store
Dec. 28, 2024
USD ($)
Dec. 30, 2023
USD ($)
Dec. 31, 2022
USD ($)
Intangible Assets        
Termination of agreement, number of stores 11      
Termination of agreement, consideration paid by Winmark | $ $ 3,540,000      
Number of stores in which Winmark reacquired the franchise rights 11      
Number of stores that signed franchise agreements 11      
Amortization of intangible assets | $   $ 354,000 $ 354,000 $ 191,700
Franchise Rights        
Intangible Assets        
Useful life 10 years