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Warrant liabilities - Narrative (Details) - $ / shares
 12 Months Ended
Dec. 31, 2025
Dec. 23, 2025
Oct. 28, 2025
Disclosure Of Warranty Liabilities [Line Items]      
Number of warrants in warrant exchange (in shares)   1  
Class A warrants      
Disclosure Of Warranty Liabilities [Line Items]      
Number of warrants issued (in shares)     2,722,642
Class B warrants      
Disclosure Of Warranty Liabilities [Line Items]      
Number of warrants issued (in shares)     2,722,642
Placement agent warrants      
Disclosure Of Warranty Liabilities [Line Items]      
Number of warrants issued (in shares)     131,829
NASDAQ Intermarket      
Disclosure Of Warranty Liabilities [Line Items]      
Class of warrants or rights exercise price (in US Dollars per share) $ 8.91    
NASDAQ Intermarket | Warrants      
Disclosure Of Warranty Liabilities [Line Items]      
Class of warrants or rights issued during the period units (in shares) 1,492,307    
NASDAQ Intermarket | Warrants after reverse stock split      
Disclosure Of Warranty Liabilities [Line Items]      
Class of warrants or rights exercise price (in US Dollars per share) $ 133.65