v3.26.1
Warrants and warrant liability - Disclosure of Warrant liability transactions (Detail) - USD ($)
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Disclosure Of Warrant Liability Transactions [Line Items]    
Number of share warrant liability outstanding, beginning of year 100,000 0
Number of share warrant liability, Granted 14,000,000 100,000
Change in fair value of share warrant liability 0 0
Number of share warrant liability outstanding, end of year 14,100,000 100,000
Weighted average exercise price of warrant liabilities outstanding, beginning of year $ 19.5 $ 0
Weighted average exercise price of warrant liabilities, Granted 3 19.5
Change in fair value of weighted average exercise price 0 0
Weighted average exercise price of warrant liabilities outstanding, end of year $ 3.12 $ 19.5
Fair value of warrant liability outstanding, beginning of year $ 132,200 $ 0
Fair value of warrant liability, Granted 8,918,500 519,100
Change in fair value of warrant liability (3,490,900) (386,900)
Fair value of warrant liability outstanding, end of year $ 5,559,800 $ 132,200