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Financial Income (Expenses), Net (Tables)
 12 Months Ended
Dec. 31, 2022
Other Income and Expenses [Abstract]  
Schedule of Financial Income (Expenses), Net
 
   
Year ended December 31
  
   
2020
    
2021
    
2022
  
   
US$ thousands
  
                   
Interest income
    
2,197
      
1,548
      
1,144
  

Changes in marketable securities, net

    
(244
)
    
(621
)
    
(914
)
Exchange rate differences, net
    
(748
)
    
(1,031
)
    
2,308
  
Bank charges
    
(171
)
    
(48
)
    
(74
)
                         
     
1,034
      
(152
)
    
2,464