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Cash and Cash Equivalents
12 Months Ended
Dec. 31, 2015
Cash and Cash Equivalents [Abstract]  
Cash and Cash Equivalents
Note 4 - Cash and Cash Equivalents
       
 
   
December 31
 
   
2014
   
2015
 
   
US$ thousands
 
             
Cash
    14,172       12,329  
Cash equivalents *
    3,718       5,849  
      17,890       18,178  
 
*
Comprised mainly of deposits in banks as at December 31, 2014 and 2015 carrying a weighted average interest rate of 0.14% and 0.11%, respectively.