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Property and Equipment, Net (Tables)
12 Months Ended
Dec. 31, 2023
Property and Equipment, Net [Abstract]  
Schedule of Property and Equipment, Net
   December 31 
   2023   2022 
   U.S. dollars in thousands 
Cost:        
Computer, software, and electronic equipment   8,583    8,575 
Office furniture and equipment   872    872 
Leasehold improvements   292    292 
    9,747    9,739 
Less: accumulated depreciation   9,686    9,659 
Property and equipment, net   61    80