Shareholders Equity (Details 3) - $ / shares |
12 Months Ended | ||||
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Dec. 31, 2019 |
Dec. 31, 2018 |
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| Number of Shares of Common Stock Underlying Warrants | 7,001,971 | ||||
| Private Warrants issued to Yeda [Member] | |||||
| Issuance Date | May 11, 2017 | ||||
| Expiration Date | May 11, 2025 | ||||
| Exercise Price Per Share | [1] | $ 0.001 | |||
| Number of Shares of Common Stock Underlying Warrants | 591,382 | ||||
| Private Warrants issued to Founders [Member] | |||||
| Issuance Date | Nov. 27, 2017 | ||||
| Exercise Price Per Share | |||||
| Number of Shares of Common Stock Underlying Warrants | 10,589 | ||||
| Private Placement Warrants [Member] | IPO [Member] | |||||
| Issuance Date | Dec. 13, 2018 | ||||
| Expiration Date | Dec. 13, 2023 | ||||
| Exercise Price Per Share | $ 11.50 | ||||
| Number of Shares of Common Stock Underlying Warrants | 2,900,000 | ||||
| Public Warrants [Member] | IPO [Member] | |||||
| Issuance Date | Dec. 13, 2018 | ||||
| Expiration Date | Oct. 28, 2024 | ||||
| Exercise Price Per Share | $ 11.50 | ||||
| Number of Shares of Common Stock Underlying Warrants | 3,500,000 | ||||
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- Definition Exercise price per share or per unit of warrants or rights outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Expiration date of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in CCYY-MM-DD format. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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