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Cash and Cash Equivalents (Tables)
12 Months Ended
Dec. 31, 2021
Cash and Cash Equivalents [Abstract]  
Schedule of Cash and Cash Equivalents
 
 
December 31
 
 
 
2020
 
 
2021
 
 
 
US$ thousands
 
 
 
 
 
 
 
 
Cash
 
 
19,477
 
 
 
25,368
 
Cash equivalents *
 
 
1,199
 
 
 
3,917
 
 
 
 
20,676
 
 
 
29,285
 
 
*
Comprised mainly of bank deposits in ILS as at December 31, 2020 and 2021 carrying a weighted average interest rate of 0.84% and 0.03%, respectively.