Registration statement for securities of certain foreign private issuers

Share-Based Payment Transactions (Tables)

v3.19.1
Share-Based Payment Transactions (Tables)
 12 Months Ended
Dec. 31, 2017
Share Based Payment Transactions [Abstract]  
Schedule of expenses recognized in financial statements
     

Year ended

December 31,

  
      2017     2016     2015  
      USD  
                     
  Research and development expenses   $ 139     $ 129     $ 53  
  General and administrative expenses     53       180       56  
                           
      $ 192     $ 309     $ 109  
Summary of weighted average exercise prices and modification in option plans of employees, directors and consultants
      Shares subject to options outstanding  
      2017     2016     2015  
      Number     Weighted average exercise price     Number     Weighted average exercise price     Number     Weighted average exercise price  
            USD           USD           USD  
  Outstanding at beginning of year     737,028       2.63       798,579       3.14       592,707       3.94  
  Grants     970,000       0.75       180,000       1.15       240,000       1.11  
  Forfeited/expired     (216,605 )     4.26       (241,551 )     3.32       (34,128 )     2.82  
                                                   
  Outstanding at end of year     1,490,423       1.35       737,028       2.63       798,579       3.14  
                                                   
  Exercisable at end of year     451,266       2.41       402,500       3.87       557,749       4.00  
Summary of estimated using the binomial option pricing model
      December 31,
  Description   2017   2016
           
  Risk-free interest rate   1.89%-2.31%   2.01%-2.02%
  Expected volatility   74.4%-77.64%   77.84%-78.22%
  Dividend yield   0   0
  Contractual life   10   10
  Early Exercise Multiple (Suboptimal Factor)   2.5   2.5
  Exercise price   0.72-0.98   1.12-1.39