{"cik":1951067,"taxonomy":"us-gaap","tag":"EarningsPerShareBasic","label":"Earnings Per Share, Basic","description":"The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.","entityName":"C3IS INC.","units":{"USD/shares":[{"start":"2022-07-25","end":"2022-12-31","val":17.33,"accn":"0001193125-24-123906","fy":2023,"fp":"FY","form":"20-F","filed":"2024-04-30"},{"start":"2022-07-25","end":"2022-12-31","val":259.94,"accn":"0001193125-25-100539","fy":2024,"fp":"FY","form":"20-F","filed":"2025-04-28"},{"start":"2023-01-01","end":"2023-06-30","val":11.54,"accn":"0001193125-24-228507","fy":2024,"fp":"Q2","form":"6-K","filed":"2024-09-30"},{"start":"2023-01-01","end":"2023-12-31","val":157.28,"accn":"0001193125-24-123906","fy":2023,"fp":"FY","form":"20-F","filed":"2024-04-30"},{"start":"2023-01-01","end":"2023-12-31","val":2358.9,"accn":"0001193125-25-100539","fy":2024,"fp":"FY","form":"20-F","filed":"2025-04-28"},{"start":"2023-01-01","end":"2023-12-31","val":47133.25,"accn":"0001193125-26-170448","fy":2025,"fp":"FY","form":"20-F","filed":"2026-04-22","frame":"CY2023"},{"start":"2024-01-01","end":"2024-06-30","val":-4.61,"accn":"0001193125-24-228507","fy":2024,"fp":"Q2","form":"6-K","filed":"2024-09-30"},{"start":"2024-01-01","end":"2024-06-30","val":-47.82,"accn":"0001193125-25-221775","fy":2025,"fp":"Q2","form":"6-K","filed":"2025-09-29"},{"start":"2024-01-01","end":"2024-12-31","val":-25.73,"accn":"0001193125-25-100539","fy":2024,"fp":"FY","form":"20-F","filed":"2025-04-28"},{"start":"2024-01-01","end":"2024-12-31","val":-351.58,"accn":"0001193125-26-170448","fy":2025,"fp":"FY","form":"20-F","filed":"2026-04-22","frame":"CY2024"},{"start":"2025-01-01","end":"2025-06-30","val":0.52,"accn":"0001193125-25-221775","fy":2025,"fp":"Q2","form":"6-K","filed":"2025-09-29"},{"start":"2025-01-01","end":"2025-12-31","val":46.5,"accn":"0001193125-26-170448","fy":2025,"fp":"FY","form":"20-F","filed":"2026-04-22","frame":"CY2025"}]}}