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Consolidated Statements of Operations and Comprehensive Loss (Details) - Schedule of Share-based payments - 2016 Plan [Member] | 12 Months Ended
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Dec. 31, 2023 € / shares shares | Dec. 31, 2023 $ / shares shares | Dec. 31, 2022 € / shares shares | Dec. 31, 2022 $ / shares shares
Options [Member] |  |  |  |  |
Consolidated Statements of Operations and Comprehensive Loss (Details) - Schedule of Share-based payments [Line Items] |  |  |  |  |
Options, Outstanding beginning |  | 888,632 | 888,632 | 888,632 | 888,632
Options, Exercised during the year |  |  |  |  |
Options, Outstanding ending |  | 888,632 | 888,632 | 888,632 | 888,632
Options, Exercisable at December 31 |  | 888,632 | 888,632 | 888,632 | 888,632
WAEP [Member] |  |  |  |  |
Consolidated Statements of Operations and Comprehensive Loss (Details) - Schedule of Share-based payments [Line Items] |  |  |  |  |
WAEP, Outstanding beginning | (per share) | [1] | € 1.74 | $ 1.86 | € 2.96 | $ 3.35
WAEP, Exercised during the year | (per share) |  |  |  |  |
WAEP, Outstanding ending | (per share) | [1] | 1.68 | 1.86 | 1.74 | 1.86
WAEP,Exercisable at December 31 | (per share) | [1] | € 1.68 | $ 1.86 | € 1.74 | $ 1.86
[1] | Conversion rates used for one €: December 31,2023 $0.9050, average rate 2023 $0.9246, December 31,2022 $0.9376, average rate 2022 $0.9489

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