| Cover | Mar. 23, 2023 |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Mar. 23, 2023 |
| Entity File Number | 001-41189 |
| Entity Registrant Name | Aetherium Acquisition Corp. |
| Entity Central Index Key | 0001866547 |
| Entity Tax Identification Number | 86-3449713 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 79B Pemberwick Rd. |
| Entity Address, City or Town | Greenwich |
| Entity Address, State or Province | CT |
| Entity Address, Postal Zip Code | 06831 |
| City Area Code | (650) |
| Local Phone Number | 450-6836 |
| 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 |
| Units, each consisting of one share of Class A Common Stock and one Redeemable Warrant | |
| Title of 12(b) Security | Units, each consisting of one share of Class A Common Stock and one Redeemable Warrant |
| Trading Symbol | GMFIU |
| Security Exchange Name | NASDAQ |
| Class A Common Stock, par value $0.0001 per share | |
| Title of 12(b) Security | Class A Common Stock, par value $0.0001 per share |
| Trading Symbol | GMFI |
| Security Exchange Name | NASDAQ |
| Warrants | |
| Title of 12(b) Security | Warrants |
| Trading Symbol | GMFIW |
| Security Exchange Name | NASDAQ |
