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INVENTORIES (Tables)
12 Months Ended
Dec. 31, 2020
INVENTORIES  
Schedule of Inventory

December 31, 

(U.S. dollars in thousands)

2019

2020

Raw materials

$

3,607

$

3,347

Work in progress

 

552

2,887

Finished goods

 

3,996

6,848

Total inventory

$

8,155

$

13,082