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Goodwill: (Tables)
 6 Months Ended
Jun. 30, 2021
Goodwill  
Schedule of Goodwill
          
   June 30, 2021   December 31, 2020 
Goodwill, balance at beginning of period  $3,301,439   $3,301,439 
Impairment of goodwill   -    - 
           
Goodwill, balance at end of period  $3,301,439   $3,301,439