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Warrants (Tables)
 9 Months Ended
Sep. 30, 2022
Warrants Abstract  
Schedule of the warrants issued
   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  September 30,
2022		   September 30,
2022		 
Market price per share (USD/share)  $1.15   $1.15 
Exercise price (USD/price)   6.46    6.475 
Risk free rate   4.0%   4.2%
Dividend yield   0.0%   0.0%
Expected term/ Contractual life (years)   1.2 years    1.7 years 
Expected volatility   88.1%   88.6%

 

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
September 30,
2022		   September 30,
2022		 
Market price per share (USD/share)   1.15    1.15 
Exercise price (USD/price)   7.67    9.204 
Risk free rate   4.2%   4.2%
Dividend yield   0.0%   0.0%
Expected term/ Contractual life (years)   1.9 years    1.9 years 
Expected volatility   112.8%   112.8%

 
Schedule of warrants liability measured at fair value on a recurring basis using Level 3 inputs
   December 31,   September 30, 
   2021   2022 
Balance at the beginning of period  $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 warrants included in earnings   (61,802,000)   (4,699,000)
   $5,846,000   $1,147,000 

 
Schedule of the warrant activity
           Weighted 
           Average 
           Remaining 
           Contractual 
   Number of   Average   Term in 
   Warrants   Exercise Price   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 September 30, 2022   9,092,499    7.19    1.58 
Exercisable at September 30, 2022   9,092,499    7.19    1.58