| Cover | Dec. 06, 2024 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Dec. 06, 2024 |
| Entity File Number | 333-266341 |
| Entity Registrant Name | LAMY |
| Entity Central Index Key | 0001939937 |
| Entity Tax Identification Number | 37-2039216 |
| Entity Incorporation, State or Country Code | WY |
| Entity Address, Address Line One | 201 Allen Street Unit 10104 |
| Entity Address, City or Town | New York |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 10002 |
| City Area Code | 657 |
| Local Phone Number | 315-8312 |
| 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 | true |
