Net income (loss) per common share (Details) - shares	9 Months Ended
Sep. 30, 2025	Sep. 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	127,728,250	177,521,610
Total	1,150,104,670	1,199,898,030

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

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