Share capital (Schedule of assumptions used to estimate the fair value of warrants) (Details) - Regulation A Warrants [Member]	Jun. 02, 2025 Percentage USD_Per_Shares Year	Mar. 10, 2025 Percentage USD_Per_Shares Year
Valuation date share price [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input | USD_Per_Shares	2.63	3.4
Exercise price [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input | USD_Per_Shares	3.1	2.8
Dividend yield [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0	0
Risk-free interest rate [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.0401	0.0398
Expected warrant life [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input | Year	5	5
Expected volatility [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	97.42	97.81