| Cover | Dec. 27, 2024 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Dec. 27, 2024 |
| Entity File Number | 001-38421 |
| Entity Registrant Name | BIT DIGITAL INC. |
| Entity Central Index Key | 0001710350 |
| Entity Tax Identification Number | 98-1606989 |
| Entity Incorporation, State or Country Code | E9 |
| Entity Address, Address Line One | 31 Hudson Yards |
| Entity Address, Address Line Two | Floor 11 |
| Entity Address, City or Town | New York |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 10001 |
| City Area Code | 212 |
| Local Phone Number | 463-5121 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Ordinary Shares, $.01 par value |
| Trading Symbol | BTBT |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
