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Convertibles Notes (Tables)
 6 Months Ended
Jun. 30, 2021
2021 Convertible Notes [Member]  
Debt Instrument [Line Items]  
Carrying Value of Convertible Notes

The table below summarizes the carrying value of the 2021 Convertible Notes as of June 30, 2021 and December 31, 2020:

   
2021 Notes
  
 
June 30,
2021
    
December 31,
2020
  
Principal amount
  
$
5,150
    
$
5,150
  
Discount
    
(48
)
    
(275
)
Carrying value
  
$
5,102
    
$
4,875