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Share-Based Payment (Tables)
 12 Months Ended
Dec. 31, 2021
Disclosure of terms and conditions of share-based payment arrangement [abstract]  
Schedule of Expenses Recognized in Financial Statements
The expenses recognized in the financial statements for services received from directors and employees is shown in the following table:
 
   
Year ended December 31
  
   
2021
    
2020
    
2019
  
   
€ thousand
  
Expenses arising from share-based payment
                  
Transactions
     63       50       8  
Schedule of Black-Scholes Options Pricing Model
The fair value of the options is estimated using a Black-Scholes options pricing model with the following weighted average assumptions:
 
   
Year ended December 31
  
   
2021
    
2020
    
2019
  
Dividend yield
     0
%
     0
%
     0
%
Expected volatility
     0.433       0.427       0.428  
Risk-free interest
     0.48
%
     0.11
%
     1.73
%
Expected life (in years)
    
2-3
      
2-3
      
2-3
  
Schedule of Weighted Average Fair Values and Exercise Price
   
Equal market price
  
   
2021
    
2020
  
   
US$
  
Weighted average exercise prices
     29.27       28.91  
                 
Weighted average fair value on grant date
     9.65       9.63  
Schedule of Number and Weighted Average Exercise Prices of Share Options
The following table lists the number of share options, the weighted average exercise prices of share options during the current year:
 
   
2021
    
2020
    
2019
  
   
Number of
options
    
Weighted
Average
Exercise
Price
    
Number of
options
    
Weighted
average
exercise
price
    
Number of
options
    
Weighted
Average
Exercise
Price
  
                         
                         
                         
         
US$
          
US$
          
US$
  
Outstanding at
                                    
 beginning of year
     31,135       12.94       34,886       9.83       27,169       7.82  
Granted during
                                                
 the year
     37,000       29.27       4,249       28.91       18,303       11.41  
Exercised during
                                                
 the year
     (18,451
)
     10.06       (8,000
)
     7.87       (3,586
)
     6.27  
Expired during
                                                
 the year
     (1,000
)
     26.63       -       -       (7,000
)
     8.25  
                                                 
Outstanding at
                                                
 end of year
     48,684       26.16       31,135       12.94       34,886       9.83  
Exercisable at
                                                
 end of year
     6,749       20.05       17,018       6.3       16,583       8.09