| Cover | Feb. 14, 2023 |
| Entity Addresses [Line Items] | |
| Document Type | 8-K/A |
| Amendment Flag | true |
| Amendment Description | This Amendment No. 2 on Form 8-K/A (this “Amendment”) amends the Current Report on Form 8-K of Ocean Biomedical, Inc. (f/k/a Aesther Healthcare Acquisition Corp.) (the “Company”), originally filed by the Company with the Securities and Exchange Commission (“SEC”) on February 15, 2023 (the “Original Filing”), and amended by Amendment No. 1 filed with the SEC on February 15, 2023, in which the Company reported, among other events, the consummation of the Business Combination (as defined in the Original Report) on February 14, 2023. |
| Document Period End Date | Feb. 14, 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 |
| Common stock, par value $0.0001 per share | |
| Entity Addresses [Line Items] | |
| 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 | |
| Entity Addresses [Line Items] | |
| 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 |
| Former Address [Member] | |
| Entity Addresses [Line Items] | |
| Entity Address, Address Line One | Aesther Healthcare Acquisition Corp. |
| Entity Address, Address Line Two | 515 Madison Avenue |
| Entity Address, Address Line Three | Suite 8078 |
| Entity Address, City or Town | New York |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 10022 |
