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Significant Accounting Policies (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Significant Accounting Policies (Details) [Line Items] |  |  |
Monthly deposits percentage rate | 8.33% |  |
Severance pay expense | $ 394 | $ 346 |
Fair value of the options contracts | 62 | 8 |
Profits (losses) | $ 81 | $ 10 | $ 0
Minimum [Member] | Short-Term Deposits [Member] |  |  |
Significant Accounting Policies (Details) [Line Items] |  |  |
Short-term deposit bearing interest percentage rate | 0.40% |  |
Minimum [Member] | Long-Term Deposits [Member] |  |  |
Significant Accounting Policies (Details) [Line Items] |  |  |
Long-term deposit bearing interest percentage rate | 1.10% |  |
Maximum [Member] | Short-Term Deposits [Member] |  |  |
Significant Accounting Policies (Details) [Line Items] |  |  |
Short-term deposit bearing interest percentage rate | 1.21% |  |
Maximum [Member] | Long-Term Deposits [Member] |  |  |
Significant Accounting Policies (Details) [Line Items] |  |  |
Long-term deposit bearing interest percentage rate | 1.25% |  |

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