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Shareholders' Equity (RSUs Granted in 2017 and 2020) (Narrative) (Details) - Restricted Stock Units (RSUs) [Member] - shares
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
RSUs grant 86,000 16,000 0 86,000
Minimum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period from date of grant 2 years 2 years   2 years
Maximum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period from date of grant 3 years 3 years   3 years