Share capital (Details) - Common Shares [Member] - USD ($) |
3 Months Ended | 9 Months Ended | |
|---|---|---|---|
Sep. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Statement [Line Items] | |||
| Balance, beginning | $ 128,062 | $ 134,866 | $ 116,408,000 |
| Balance at beginning (in shares) | 40,106,915 | 42,108,920 | 34,137,665 |
| Issuance of shares | $ 25,845,000 | $ 11,582,000 | |
| Issuance of shares (in shares) | 5,405,000 | 5,951,250 | |
| Exercise of warrants | $ 3,249,000 | $ 1,174,000 | |
| Exercise of warrants (in shares) | 845,000 | 1,487,841 | |
| Exercise of options | $ 1,475,000 | $ 3,503,000 | $ 72,000 |
| Excercise of options (in shares) | 1,157,005 | 997,136 | 18,000 |
| Transfer from contributed surplus | $ 2,080,000 | $ 6,611,000 | |
| Balance, ending | $ 134,866,000 | $ 171,999,000 | $ 128,062,000 |
| Balance at ending (in shares) | 42,108,920 | 49,998,897 | 40,106,915 |