Net loss per common share (Details) - shares	6 Months Ended
Jun. 30, 2025	Jun. 30, 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	125,252,906	174,044,742
Total	1,147,629,326	1,196,421,162

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