Income Taxes (Details 3)	Dec. 31, 2022 EUR (€)
United States
Net operating loss carry forwards	€ 93,627
United States | 2026
Net operating loss carry forwards	1,973
United States | Perpetual
Net operating loss carry forwards	3,918
United States | 2023
Net operating loss carry forwards	1,355
United States | 2024
Net operating loss carry forwards	1,405
United States | 2027
Net operating loss carry forwards	10,408
United State | 2028 - 2040
Net operating loss carry forwards	72,986
United States | 2025
Net operating loss carry forwards	1,582
Switzerland
Net operating loss carry forwards	347
Switzerland | 2026
Net operating loss carry forwards	0
Switzerland | Perpetual
Net operating loss carry forwards	0
Switzerland | 2023
Net operating loss carry forwards	0
Switzerland | 2024
Net operating loss carry forwards	69
Switzerland | 2025
Net operating loss carry forwards	0
Switzerland | 2028 - 2040
Net operating loss carry forwards	278
Switzerland | 2027
Net operating loss carry forwards	0
The Netherlands
Net operating loss carry forwards	6,329
The Netherlands | 2026
Net operating loss carry forwards	1,005
The Netherlands | Perpetual
Net operating loss carry forwards	0
The Netherlands | 2023
Net operating loss carry forwards	43
The Netherlands | 2024
Net operating loss carry forwards	0
The Netherlands | 2025
Net operating loss carry forwards	731
The Netherlands | 2028 - 2040
Net operating loss carry forwards	3,629
The Netherlands | 2027
Net operating loss carry forwards	€ 921