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Prepaid Expenses, Deposits and Other Current and Non-Current Assets (Tables)
12 Months Ended
Dec. 31, 2020
Prepaid Expense and Other Assets [Abstract]  
Schedule of Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets consisted of the following as of:

 

    December 31, 2020     December 31, 2019  
Advanced payments to service providers and suppliers   $ 568     $ 294  
Deposits     262       34  
EsoCheck cell collection supplies     779        
EsoGuard mailer supplies     55        
CarpX devices     21        
Total prepaid expenses, deposits and other current assets   $ 1,685     $ 328