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Other Non-Current Liabilities (Tables)
 9 Months Ended 12 Months Ended
Sep. 30, 2021
Dec. 31, 2020
Other Non-Current Liabilities [Abstract]    
Schedule of other non-current liabilities
 

December 31,
2020

  

September 30,
2021

Payable to exiting investors

  

$

94,316

  

$

—

Product warranty – non-current

  

 

15,060

  

 

33,177

Deferred subsidy income- non-current

  

 

1,221

  

 

2,334

Total

  

$

110,597

  

$

35,511
 

December 31,
2019

  

December 31,
2020

Deferred subsidy income – non-current

  

$

1,389

  

$

1,221

Payable to exiting Investors

  

 

114,870

  

 

94,316

Product warranty

  

 

14,693

  

 

15,060

Total

  

$

130,952

  

$

110,597