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Inventories (Tables)
12 Months Ended
Dec. 31, 2020
Inventory Disclosure [Abstract]  
Summary of Inventories

December 31

2019

2020

US$ thousands

 

Raw materials and components

20,986

29,362

Products in process

7,137

10,041

Finished products

8,368

8,247

36,491

47,650