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PENSION LIABILITIES, NET (Schedule Of Changes In Projected Benefit Obligations) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Liability, Defined Benefit Plan [Abstract]      
Projected benefit obligation at beginning of year $ 2,368 $ 2,177  
Service cost 12 $ 16
Interest cost 53 47 47
Expenses paid (201) (203)  
Exchange rates differences 49 (26)  
Actuarial loss 241 361  
Projected benefit obligation at end of year $ 2,510 $ 2,368 $ 2,177