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General and Administrative Expenses (Tables)
12 Months Ended
Dec. 31, 2023
General and Administrative Expenses [Abstract]  
Schedule of General and Administrative Expenses
   Year ended December 31, 
   2023   2022   2021 
   U.S. dollars in thousands 
             
Management fees and expenses relating to service providers   107    117    123 
Share based payment expense   3    14    37 
Patents and fees   94    141    137 
Directors’ fees   60    68    64 
Investor relations and travel   -    -    3 
Rent and office maintenance   12    6    15 
Insurance   119    202    229 
Professional services   330    291    381 
Other   9    11    12 
                
    734    850    1,001