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SHAREHOLDERS' EQUITY (Schedule Of Stock Compensation Expense) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]      
Stock-based compensation expenses $ 4,328 $ 4,276 $ 2,772
Research and development expenses [Member]      
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]      
Stock-based compensation expenses 2,158 1,971 1,123
Marketing and business development expenses [Member]      
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]      
Stock-based compensation expenses 269 215 172
General and administrative expenses [Member]      
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]      
Stock-based compensation expenses $ 1,901 $ 2,090 $ 1,477