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SHAREHOLDERS' EQUITY (Summary Of Stock Options And RSUs Granted) (Details) - USD ($)
$ / shares in Units, $ in Thousands
 6 Months Ended 12 Months Ended
Jun. 30, 2021
Dec. 31, 2020
Number of awards    
Granted 20,000,000  
Stock Option [Member]    
Number of awards    
Outstanding at beginning of year 6,238,729  
Granted 14,500  
Exercised (1,765,986)  
Forfeited or expired (566,284)  
Outstanding at end of the period 3,920,959 6,238,729
Options exercisable at end of the period 2,175,627  
Vested and expected to vest 3,612,421  
Weighted average exercise price    
Outstanding at beginning of year $ 3.52  
Granted 3.91  
Exercised 2.24  
Forfeited or expired 9.47  
Outstanding at end of the period 3.23 $ 3.52
Options exercisable at end of the period 3.78  
Vested and expected to vest $ 3.30  
Weighted average remaining contractual term (in years)    
Outstanding at end of the period 3 years 4 months 24 days 3 years 2 months 1 day
Options exercisable at end of the period 2 years 5 months 1 day  
Vested and expected to vest 3 years 3 months 10 days  
Aggregate intrinsic value    
Outstanding at beginning of year $ 2,654  
Outstanding at end of the period 4,128 $ 2,654
Options exercisable at end of the period 1,980  
Vested and expected to vest $ 3,730  
Restricted Stock Units RSUs [Member]    
Number of awards    
Outstanding at beginning of year 309,986  
Granted 6,500  
Vested (11,260)  
Forfeited or expired (29,640)  
Outstanding at end of the period 275,586 309,986
Aggregate intrinsic value    
Outstanding at beginning of year $ 862  
Outstanding at end of the period $ 1,039 $ 862