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Related Parties (Details) - Schedule of related parties transactions - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Schedule of related parties transactions [Abstract]      
Research and development – see d below $ 80 $ 355 $ 154
General and administrative – See c, e and f below $ (191) $ (167) $ 5,824