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SHAREHOLDERS' EQUITY (Schedule Of Stock Compensation Expense) (Details) - Employee Stock Purchase Plan [Member] - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |
Stock-based compensation expenses | $ 3,550 | $ 4,328 | $ 4,276
Research and development expenses [Member] |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |
Stock-based compensation expenses | 1,933 | 2,158 | 1,971
Marketing and business development expenses [Member] |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |
Stock-based compensation expenses | (41) | 269 | 215
General and administrative expenses [Member] |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |
Stock-based compensation expenses | $ 1,658 | $ 1,901 | $ 2,090

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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479830/718-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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