Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation - Summary of Store activity (Details)

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Basis of Presentation - Summary of Store activity (Details) - Stores
 3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Franchised Stores [Member]    
Schedule of Store Activity [Line Items]    
Stores, beginning of the period 102 117
Stores opened during the period 2 9
Stores transferred/sold to the Company   (2)
Stores closed during the period (6) (22)
Stores, end of the period 98 102
Corporate Owned Stores [Member]    
Schedule of Store Activity [Line Items]    
Stores, beginning of the period 17 13
Stores opened during the period 2 2
Stores transferred/sold to the Company   2
Stores, end of the period 19 17