Net loss per common share (Details) - shares	3 Months Ended
Mar. 31, 2025	Mar. 31, 2024
Earnings Per Share [Abstract]
Shares issuable upon exercise of warrants	1,022,376,420	1,022,376,420
Shares issuable on conversion of convertible notes	184,444,801	178,224,555
Total	1,206,821,221	1,200,600,975

Number of shares issued during the period as a result of the conversion of convertible securities.

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Balance Type:	na
Period Type:	duration