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Income Taxes (Schedule of Significant Components of the Company's Deferred Tax Asset) (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | --- | --- | ---
Deferred taxes |  |  |  |  |
Net operating loss carry-forwards | [1] | $ 40,755 | $ 38,258 | $ 36,550 |
Share-based compensation expense |  | 351 | 1,163 | 1,774 |
Research and development costs |  | 3,103 | 4,041 | 2,858 |
Other |  | 10 | 9 | 13 |
Gross deferred tax assets |  | 44,219 | 43,471 | 41,195 |
Less - Valuation allowance |  | (44,219) | (43,471) | (41,195) | $ (36,030)
Net deferred tax assets |  | $ 0 | $ 0 | $ 0 |
[1] | This excludes capital losses of approximately $14,224 thousands for which the company will create a full valuation allowance.

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