| Document and Entity Information | Feb. 02, 2022 |
| Cover [Abstract] | |
| Amendment Flag | false |
| Entity Central Index Key | 0001787414 |
| Document Type | 8-K |
| Document Period End Date | Feb. 2, 2022 |
| Entity Registrant Name | Bogota Financial Corp. |
| Entity Incorporation State Country Code | MD |
| Entity File Number | 001-39180 |
| Entity Tax Identification Number | 84-3501231 |
| Entity Address, Address Line One | 819 Teaneck Road |
| Entity Address, City or Town | Teaneck |
| Entity Address, State or Province | NJ |
| Entity Address, Postal Zip Code | 07666 |
| City Area Code | (201) |
| Local Phone Number | 862-0660 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Security 12b Title | Common Stock, par value $0.01 |
| Trading Symbol | BSBK |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | false |
