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SHAREHOLDERS' EQUITY (Summary Of Stock Options Granted) (Details) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Number of options    
Outstanding at beginning of year 6,238,729  
Granted 1,902,868  
Exercised (2,098,957)  
Forfeited or expired (856,194)  
Outstanding at end of year 5,186,446 6,238,729
Options exercisable at end of the year 2,342,399  
Vested and expected to vest 4,664,666  
Weighted average exercise price    
Outstanding at beginning of year $ 3.52  
Granted 3.72  
Exercised 2.25  
Forfeited or expired 7.75  
Outstanding at end of year 3.40 $ 3.52
Options exercisable at end of the year 3.57  
Vested and expected to vest $ 3.41  
Weighted-average remaining contractual term    
Outstanding at end of year 4 years 3 days 3 years 2 months 1 day
Options exercisable at end of the year 2 years 9 months  
Vested and expected to vest 3 years 10 months 13 days  
Aggregate intrinsic value    
Outstanding at end of the year $ 534 $ 2,654
Options exercisable at end of the year 370  
Vested and expected to vest $ 508