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Notes Receivable (Tables)
3 Months Ended
Mar. 31, 2021
Notes Receivable (Tables) [Line Items]  
Schedule of notes receivable
    March 31,
2021
    December 31,
2020
           
Principal amounts of notes receivable   $ 220,000     $ 250,000
Collections on notes receivables     (23,500 )     (30,000)
Less: allowance for doubtful accounts     (196,500 )     (196,500)
Notes receivable, net   $     $ 23,500