Warrants and warrant liability - Disclosure of outstanding warrants to acquire common shares of the Company (Detail) - $ / shares |
Dec. 31, 2025 |
Oct. 20, 2025 |
|---|---|---|
| Disclosure Of Outstanding Warrant Liabilities [Line Items] | ||
| Number of warrants | 18,650,000 | 4,550,000 |
| Exercise price | $ 2.36 | $ 0.001 |
| November 26, 2026 [Member] | ||
| Disclosure Of Outstanding Warrant Liabilities [Line Items] | ||
| Number of warrants | 100,000 | |
| Exercise price | $ 19.5 | |
| October 20, 2030 [Member] | ||
| Disclosure Of Outstanding Warrant Liabilities [Line Items] | ||
| Number of warrants | 14,000,000 | |
| Exercise price | $ 3 | |
| October 27, 2025 [Member] | ||
| Disclosure Of Outstanding Warrant Liabilities [Line Items] | ||
| Number of warrants | 4,550,000 | |
| Exercise price | $ 0.001 |