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Share-Based Payment Transactions (Tables)
 12 Months Ended
Dec. 31, 2022
Share-Based Payment Arrangement [Abstract]  
Schedule of expenses
   Year ended December 31, 
   2022   2021   2020 
             
Research and development expenses  $137   $200   $159 
General and administrative expenses   126    266    158 
    263    466    317 

 
Schedule of estimated using the binomial option pricing model
Description  2022   2021   2020 
             
Risk-free interest rate   1.41%-3.08%    1.22-1.28%    0.93-2.40% 
Expected volatility   83.98%-84.26%     82.40-82.43%    65.63-78.77% 
Dividend yield   0    0    0 
Contractual life   10    10    9.83 - 10 
Early Exercise Multiple (Suboptimal Factor)   2.5-3    3    2.5 - 3 
Exercise price (NIS)   0.25    0.25-0.253    0.25 - 2.344 

 
Schedule of share options, their weighted average exercise price
   Number of
options		   Weighted
average
exercise
price		   Weighted
average
remaining
contractual
terms (in years)		   Aggregate
intrinsic
value		 
                 
Outstanding at December 31, 20221   18,422,700    0.18    8.45    
      -
 
Grants   8,750,000    0.07    
 
    
 
 
Forfeited/expired   (170,500)   0.54    
-
    
 
 
                     
Outstanding at December 31, 2022   27,002,200    0.13    7.14    
-
 
                     
Vested and expected to vest at December 31, 2022   27,002,200    0.13    7.14    
-
 
                     
Exercisable at December 31, 2022   11,071,575    0.21    7.18    
-