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Operating Leases (Schedule of components of our costs for operating leases) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
OPERATING LEASES [Abstract]    
Operating lease cost $ 742 $ 723
Variable lease cost 269 272
Short-term lease cost 39 38
Total $ 1,050 $ 1,033