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Leases (Schedule of Operating Lease Cost) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Leases [Abstract]      
Operating lease costs (mainly plant and offices) $ 1,799 $ 1,872 $ 1,921
Variable lease payments not included in the lease liability 103 62 8
Short-term lease cost 248 273 278
Total operating lease cost $ 2,150 $ 2,207 $ 2,207