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Share Based Compensation (Tables)
6 Months Ended
Jun. 30, 2020
Share-based Payment Arrangement [Abstract]  
Schedule of the option activity

   Number of
share
options
   Weighted
average
exercise
price
$
   Remaining
contractual
term in
years
 
             
Outstanding, January 1, 2020   218,222    12.91    11.51 
                
Granted   685,569    3.02    12.02 
Exercised   (2,274)   12.91    - 
Forfeited   (2,150)   8.79    - 
Outstanding, June 30, 2020   899,367    5.38    11.60 
Exercisable, June 30, 2020   106,852    12.91    10.51 
Schedule of each stock option award is estimated on the date of grant using the Black-Scholes option pricing model

    Date of grant  
Expected volatility   88.44%-96.55%  
Risk-free interest rate   0.65%-2.49%  
Expected term from grant date (in years)   5.25-7.29  
Dividend rate   -  
Dilution factor   0.9909-1  
Fair value   $1.55-$10.52