v3.25.4
Note 12 - Income taxes - Difference in Income Tax Benefiit Computed at US Tax Rate (Details) - USD ($)
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Dec. 31, 2024
Dec. 31, 2023
Income Tax Disclosure [Abstract]            
Income tax recovery at statutory rates (at a rate of 21% for all years presented)         $ (1,903,717) $ (1,611,374)
State income taxes, net of federal benefit         (439,486)
Expenses not deducted for tax purposes         106,405 21,019
Prior year true up         (530,368)
Foreign tax expenses         56,055
Change in Valuation Allowance         2,767,166 1,590,355
 Income Tax Expense Benefit $ 11,084 $ 11,084 $ 56,055