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Income Taxes (Schedule of Significant Components of the Company's Deferred Tax Asset) (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | --- | ---
Deferred taxes |  |  |
Net operating loss carry-forwards | $ 36,550 | $ 33,396 |
Share-based compensation expense | 1,774 | 1,147 |
Research and development costs | 2,858 | 1,449 |
Other | 13 | 38 |
Gross deferred tax assets | 41,195 | 36,030 |
Less - valuation allowance | (41,195) | (36,030) | $ (6,200)
Net deferred tax assets | $ 0 | $ 0 |

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