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Warrants (Tables)
 12 Months Ended
Dec. 31, 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  December 31,
2022		   December 31,
2022		 
Market price per share (USD/share)  $0.99   $0.99 
Exercise price (USD/price)   6.46    6.475 
Risk free rate   4.7%   4.6%
Dividend yield   0.0%   0.0%
Expected term/ Contractual life (years)   0.9 years    1.4 years 
Expected volatility   75.6%   82.7%

 

Warrants holder  Investor
Warrants		   Placement
Agent 		 
Appraisal Date  Series A1
December 31,
2021		   Warrants
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%

 

Appraisal Date  Series A1
December 31,
2022		   December 31,
2022		 
Market price per share (USD/share)   0.99    0.99 
Exercise price (USD/price)   7.67    9.204 
Risk free rate   4.5%   4.5%
Dividend yield   0%   0%
Expected term/ Contractual life (years)   1.6 years    1.6 years 
Expected volatility   80.4%   80.4%

 
Schedule of warrants liability measured at fair value on a recurring basis using Level 3 inputs
    Year ended
December 31,
2021		   Year ended
December 31,
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)   (5,710,000)
Balance at end of year   5,846,000    136,000 

 
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 December 31, 2022   9,092,499    7.19    1.33 
Exercisable at December 31, 2022   9,092,499    7.19    1.33