| Cover | 3 Months Ended |
| Mar. 31, 2023 | |
| Entity Addresses [Line Items] | |
| Document Type | S-1/A |
| Amendment Flag | false |
| Entity Registrant Name | OCEAN BIOMEDICAL, INC. |
| Entity Central Index Key | 0001869974 |
| Entity Tax Identification Number | 87-1309280 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 55 Claverick St. |
| Entity Address, Address Line Two | Room 325 |
| Entity Address, City or Town | Providence |
| Entity Address, State or Province | RI |
| Entity Address, Postal Zip Code | 02903 |
| City Area Code | (401) |
| Local Phone Number | 444-7375 |
| Entity Filer Category | Non-accelerated Filer |
| Entity Small Business | true |
| Entity Emerging Growth Company | true |
| Elected Not To Use the Extended Transition Period | false |
| Business Contact [Member] | |
| Entity Addresses [Line Items] | |
| Entity Address, Address Line One | Ocean Biomedical, Inc. |
| Entity Address, Address Line Two | 55 Claverick St. |
| Entity Address, Address Line Three | Room 325 |
| Entity Address, City or Town | Providence |
| Entity Address, State or Province | RI |
| Entity Address, Postal Zip Code | 02903 |
| City Area Code | (401) |
| Local Phone Number | 444-7375 |
| Contact Personnel Name | Elizabeth Ng |
