| Cover | Oct. 04, 2023 |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Oct. 04, 2023 |
| Entity File Number | 001-40793 |
| 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 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Elected Not To Use the Extended Transition Period | false |
| Entity Information, Former Legal or Registered Name | Not Applicable |
| Common stock, par value $0.0001 per share | |
| Title of 12(b) Security | Common stock, par value $0.0001 per share |
| Trading Symbol | OCEA |
| Security Exchange Name | NASDAQ |
| Warrants, each warrant exercisable for one share of common stock at an exercise price of $11.50 | |
| Title of 12(b) Security | Warrants, each warrant exercisable for one share of common stock at an exercise price of $11.50 |
| Trading Symbol | OCEAW |
| Security Exchange Name | NASDAQ |
