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Warrants (Tables)
 6 Months Ended
Jun. 30, 2023
Warrants [Abstract]  
Schedule of the Warrants Issued 2020 Financing The fair value of the outstanding warrants was calculated using Binomial Model based on backward induction with the following assumptions:

 

Warrants holder

  Investor
Warrants		   Placement Agent
Warrants		 
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%
Appraisal Date  June 30,
2023		   June 30,
2023		 
Market price per share (USD/share)  $1.22   $1.22 
Exercise price (USD/price)   6.46    6.46 
Risk free rate   5.40%   5.4%
Dividend yield   0.0%   0.0%
Expected term/ Contractual life (years)   0.4 years    0.9 years 
Expected volatility   61.4%   59.7%

 

Warrants holder  Investor
Warrants		   Placement
Agent
Warrants		 
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%   0.0%
Expected term/ Contractual life (years)   1.6 years    1.6 years  
Expected volatility   80.4%   80.4%
Warrants holder  Investor
Warrants		   Placement
Agent
Warrants		 
Appraisal Date  Series A1
June 30,
2023		   June 30,
2023		 
Market price per share (USD/share)   1.22    1.22 
Exercise price (USD/price)   7.67    9.204 
Risk free rate   5.4%   5.4%
Dividend yield   0.0%   0.0%
Expected term/ Contractual life (years)   1.1 years    1.1 years 
Expected volatility   66.1%   66.1%
Schedule of Warrants Liability Measured at Fair Value on a Recurring Basis The following is a reconciliation of the beginning and ending balances of warrants liability measured at fair value on a recurring basis using Level 3 inputs:
   December 31,
2022		   June 30,
2023		 
Balance at the beginning of the year  $5,846,000   $136,000 
Warrants issued to institution investors   
-
    
-
 
Warrants issued to placement agent   
-
    
-
 
Warrants redeemed   
-
    
-
 
Fair value change of the issued warrants included in earnings   (5,710,000)   (121,000)
Balance at end of year/ period   136,000    15,000 
Schedule of the Warrant Activity The following is a summary of the warrant activity:
   Number of
Warrants		   Average
Exercise  Price		   Weighted Average
Remaining
Contractual Term
in Years		 
   　   　   　 
Outstanding at January 1, 2023 　 　   9,092,499   $7.19    1.33 
Exercisable at January 1, 2023   9,092,499   $7.19    1.33 
Granted 　 　   - 　 　    
-
    
-
 
Exercised / surrendered   
-
    
-
    
-
 
Expired 　 　   
-
    
-
    
-
 
Outstanding at June 30, 2023   9,092,499    7.19    0.8 
Exercisable at June 30, 2023　 　   9,092,499    7.19    0.8