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Marketable Securities (Held-To-Maturity Securities) (Details) - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Schedule of Held-to-maturity Securities [Line Items]      
Gross unrealized holding gains $ 0 $ 0  
Gross unrealized holding (losses) (679) (1,325)  
Aggregate fair value [1] 24,085 17,996  
Amortized cost basis 24,764 [2] 19,321 [2] $ 32,266
Accrued interest on securities 188 138  
Current [Member]      
Schedule of Held-to-maturity Securities [Line Items]      
Gross unrealized holding gains 0 0  
Gross unrealized holding (losses) (121) (111)  
Aggregate fair value [1] 7,901 3,927  
Amortized cost basis [2] 8,022 4,038  
Non Current [Member]      
Schedule of Held-to-maturity Securities [Line Items]      
Gross unrealized holding gains 0 0  
Gross unrealized holding (losses) (558) (1,214)  
Aggregate fair value [1] 16,184 14,069  
Amortized cost basis [2] $ 16,742 $ 15,283  
[1] Fair value is being determined using Level 2 inputs.
[2] Including accrued interest in the amount of US$ 138 thousand and US$ 188 thousand as of December 31, 2022 and 2023, respectively.