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Notes Receivable (Details Narrative) - USD ($)
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Mar. 31, 2021
Interest income on franchisee notes $ 54,000 $ 177,000 $ 285,000 $ 551,000    
Notes outstanding, net allowance losses     $ 4,300,000   $ 8,100,000  
Interest rate description     Notes receivable generally bear interest at a fixed rate between 6.0% and 10.0%. Notes receivable are generally secured by the assets of each office and the ownership interests in the franchise      
Allowance for potentially uncollectible notes receivable 1,900,000   $ 1,900,000   1,600,000  
Additional impairment in the value of note 307,000          
Notes receivable 139,593   139,593   $ 447,034 $ 5,300,000
Selling, General and Administrative Expenses [Member]            
Additional impairment in the value of note 307,000          
2020 [Member]            
Interest income on franchisee notes $ 0 $ 44,000 $ 83,000 $ 130,000