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Warrants (Tables)
 6 Months Ended
Jun. 30, 2022
Warrants [Abstract]  
Schedule of the warrants issued 2020 financing

 

Warrants holder

  Investor
Warrants		   Placement Agent
Warrants		 
Appraisal Date  December 31,
2021		   December 31,
2021		 
Market price per share (USD/share)  $1.56   $1.56 
Exercise price (USD/price)   6.46    6.475 
Risk free rate   0.7%   0.8%
Dividend yield   0.0%   0.0%
Expected term/ Contractual life (years)   1.9 years    2.4 years 
Expected volatility   140.3%   132.3%

  

Appraisal Date  June 30,
2022		   June 30,
2022		 
Market price per share (USD/share)  $1.07   $1.07 
Exercise price (USD/price)   6.46    6.46 
Risk free rate   2.90%   2.90%
Dividend yield   0.0%   0.0%
Expected term/ Contractual life (years)   1.4 years    1.9 years 
Expected volatility   92.0%   137.9%

 
Schedule of the warrants issued 2021 financing
Warrants holder  Investor
Warrants		   Placement
Agent
Warrants		 
Appraisal Date  Series A1
December 31,
2021		   December 31,
2021		 
Market price per share (USD/share)   1.56    1.56 
Exercise price (USD/price)   7.67    9.204 
Risk free rate   0.9%   0.9%
Dividend yield   0.0%   0.0%
Expected term/ Contractual life (years)   2.6 years    2.6 years  
Expected volatility   129.2%   129.2%

 

Warrants holder  Investor
Warrants		   Placement
Agent
Warrants		 
Appraisal Date  Series A1
June 30,
2022		   June 30,
2022		 
Market price per share (USD/share)   1.07    1.07 
Exercise price (USD/price)   7.67    9.204 
Risk free rate   3.0%   3.0%
Dividend yield   0.0%   0.0%
Expected term/ Contractual life (years)   2.1 years    2.1 years 
Expected volatility   137.4%   137.4%

 
Schedule of warrants liability measured at fair value on a recurring basis using Level 3 inputs
   December 31,
2021		   June 30,
2022		 
Balance at the beginning of the year  $17,783,000   $5,846,000 
Warrants issued to institution investors   47,519,000    
-
 
Warrants issued to placement agent   2,346,000    
-
 
Warrants redeemed   
-
    
-
 
Fair value change of the issued warrants included in earnings   (61,802,000)   (3,763,000)
Balance at end of year/ period   5,846,000    2,083,000 

 
Schedule of the warrant activity
   Number of
Warrants		   Average
Exercise  Price		   Weighted Average
Remaining
Contractual Term
in Years		 
   　   　   　 
Outstanding at January 1, 2022 　 　   9,092,499   $7.19    2.33 
Exercisable at January 1, 2022   9,092,499   $7.19    2.33 
Granted 　 　   - 　 　    
-
    
-
 
Exercised / surrendered   
-
    
-
    
-
 
Expired 　 　   
-
    
-
    
-
 
Outstanding at June 30, 2022   9,092,499    7.19    1.83 
Exercisable at June 30, 2022 　 　   9,092,499    7.19    1.83