v3.26.1
Consolidated Statements of Operations and Comprehensive Loss - Schedule of Share-Based Payments (Details) - 2016 Plan [Member]
12 Months Ended
Dec. 31, 2025
€ / shares
Dec. 31, 2024
€ / shares
Options [Member]    
Share-Based Payments [Line Items]    
Options, Balance 888,632 888,632
Options, Exercised
Options, Balance 888,632 888,632
Options, Exercisable 888,632 888,632
WAEP [Member] | Top of range [member]    
Share-Based Payments [Line Items]    
WAEP, Balance [1] € 1.86 € 1.86
WAEP, Exercised [1]
WAEP, Balance [1] 1.86 1.86
WAEP, Exercisable [1] 1.86 1.86
WAEP [Member] | Bottom of range [member]    
Share-Based Payments [Line Items]    
WAEP, Balance [1] 1.79 1.68
WAEP, Exercised [1]
WAEP, Balance [1] 1.58 1.79
WAEP, Exercisable [1] € 1.58 € 1.79
[1] Conversion rates used for one €: December 31,2025 $0.8511, average rate 2025 $0.8855, December 31,2024 $0.9626, average rate 2024 $0.9242