Annual report pursuant to Section 13 and 15(d)

Related Party Transactions (Details)

v3.20.4
Related Party Transactions (Details)
1 Months Ended
Dec. 31, 2020
USD ($)
franchise
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Related Party Transaction [Line Items]      
Net deferred revenue $ 16,504,114 $ 15,107,276 $ 13,609,463
Marshall Gramm      
Related Party Transaction [Line Items]      
Number of franchises | franchise 2    
Ownership threshold, percent 5.00%    
Ownership, percent 12.00%    
Amounts received $ 71,800    
Net deferred revenue $ 71,494