| Cover | Jan. 27, 2022 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Jan. 27, 2022 |
| Entity File Number | 001-35033 |
| Entity Registrant Name | OCONEE FEDERAL FINANCIAL CORP. |
| Entity Central Index Key | 0001501078 |
| Entity Tax Identification Number | 32-0330122 |
| Entity Incorporation, State or Country Code | SC |
| Entity Address, Address Line One | 201 East North Second Street |
| Entity Address, City or Town | Seneca |
| Entity Address, State or Province | SC |
| Entity Address, Postal Zip Code | 29678 |
| City Area Code | (864) |
| Local Phone Number | 882-2765 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Entity Information, Former Legal or Registered Name | Not Applicable |
