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Other Receivables (Tables)
12 Months Ended
Dec. 31, 2020
Receivables [Abstract]  
Schedule of Other Receivables

December 31

2019

2020

US$ thousands

 

Advances to suppliers

805

618

Government authorities

2,758

3,668

Prepaid expense

553

477

Other receivables

848

1,363

4,964

6,126