v3.26.1
Consolidated Statements of Operations and Comprehensive Loss - Schedule of Share-Based payments (Details) - Long-Term Incentive Plan 2017 [Member]
12 Months Ended
Dec. 31, 2025
€ / shares
Dec. 31, 2025
€ / shares
$ / shares
Dec. 31, 2024
€ / shares
Dec. 31, 2024
€ / shares
$ / shares
Dec. 31, 2025
$ / shares
Dec. 31, 2024
$ / shares
Options [Member]            
Share-Based Payments [Line Items]            
Options, Balance 8,905,446 8,905,446 6,584,946 6,584,946    
Options, Granted 2,452,000 2,452,000 2,332,500 2,332,500    
Options, Forfeited (136,250) (136,250) (12,000) (12,000)    
Options, Expired (98,876) (98,876)    
Options, Balance 11,122,320 11,122,320 8,905,446 8,905,446    
Options, Exercisable 10,505,820 10,505,820 8,129,196 8,129,196 10,505,820 8,129,196
WAEP [Member]            
Share-Based Payments [Line Items]            
WAEP, Expired       $ 0    
WAEP [Member] | Top of range [member]            
Share-Based Payments [Line Items]            
WAEP, Balance   $ 2.03 [1]   2.12    
WAEP, Granted   2.41 [1]   1.78    
WAEP, Forfeited   2.21 [1]   3.02    
WAEP, Expired [1]   3.03        
WAEP, Balance [1]   $ 2.1   $ 2.03    
WAEP, Exercisable         $ 2.08 [1] $ 2.03
WAEP [Member] | Bottom of range [member]            
Share-Based Payments [Line Items]            
WAEP, Balance | € / shares € 1.95 [1]   € 1.92      
WAEP, Granted | € / shares 2.13 [1]   1.65      
WAEP, Forfeited | € / shares 1.96 [1]   2.79      
WAEP, Expired | € / shares [1] 2.69          
WAEP, Balance | € / shares [1] 1.79   1.95      
WAEP, Exercisable | € / shares € 1.77 [1] $ 1.77 [1] € 1.96 $ 1.96    
[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