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Related party transactions (Narrative) (Details) - RBx Capital, LP ("RBx") [Member] - USD ($) |  | 1 Months Ended | 3 Months Ended | 6 Months Ended
--- | --- | --- | --- | ---
Oct. 18, 2023 | Jan. 31, 2026 | Jun. 30, 2026 | Jun. 30, 2025 | Jun. 30, 2026 | Jun. 30, 2025
Related Party Transaction [Line Items] |  |  |  |  |  |
Reimbursable salaries | $ 100,000 | $ 125,000 |  |  | $ 750,000 | $ 600,000
Additional expenses |  |  | $ 455,486 | $ 64,046 | 898,983 | 104,911
Total amount of accounts payable |  |  | $ 161,846 | $ 121,273 | $ 161,846 | $ 121,273

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