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TAXES ON INCOME (Tables) | 12 Months Ended
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Dec. 31, 2020
Income Tax Disclosure [Abstract] |
Schedule of Deferred Income Taxes |
|  | December, 31 |
|  | 2019 |  |  | 2020 |
In respect of: |  |  |  |  |  |
Net operating loss carry forward |  | $ | 25,879 |  |  | $ | 34,835 |
Research and development expenses |  |  | 7,842 |  |  |  | 7,133 |
Other |  |  | 1,226 |  |  |  | 1,085 |
Less – valuation allowance |  |  | (34,947 | ) |  |  | (43,053 | )
Net deferred tax assets |  | $ | — |  |  | $ | — |
Roll Forward of Valuation Allowance |
Balance at January 1, 2018 |  | $ | 21,982 |
Additions |  |  | 4,184 |
Balance at December 31, 2018 |  | $ | 26,166 |
Additions |  |  | 8,781 |
Balance at December 31, 2019 |  | $ | 34,947 |
Additions |  |  | 8,106 |
Balance at December 31, 2020 |  | $ | 43,053 |

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