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Prepaid expenses and other assets (Tables)
9 Months Ended
Sep. 30, 2021
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]  
Schedule of prepaid expenses and other assets

Prepaid expenses and other assets consist of the following:

 

   September 30, 2021   December 31, 2020 
Prepaid insurance   -    342 
Other prepaid costs   25,444    17,497 
Prepaid expenses and other current assets  $25,444   $17,839