Share capital (Details 3) - Warrant continuity schedule [Member] - USD ($) |
9 Months Ended | 12 Months Ended |
|---|---|---|
Jun. 30, 2026 |
Sep. 30, 2025 |
|
| Statement [Line Items] | ||
| Balance at beginning (in shares) | 67,841 | 912,841 |
| Beginning balance, amount | $ 144 | $ 1,489 |
| Warrant exercised | (67,841) | (845,000) |
| Fair value warrant exercised | $ (109) | $ (926) |
| Fair value adjustment | $ (35) | $ 915 |
| Balance at ending (in shares) | 0 | 67,841 |
| Ending balance, amount | $ 0 | $ 144 |