| Document and Entity Information | Aug. 18, 2022 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Aug. 18, 2022 |
| Entity Registrant Name | VWF Bancorp, Inc. |
| Entity Incorporation, State or Country Code | MD |
| Entity File Number | 000-56459 |
| Entity Tax Identification Number | 88-1256373 |
| Entity Address, Address Line One | 976 South Shannon Street |
| Entity Address, City or Town | Van Wert |
| Entity Address, State or Province | OH |
| Entity Address, Postal Zip Code | 45891 |
| City Area Code | 419 |
| Local Phone Number | 238-9662 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | false |
| Entity Central Index Key | 0001913838 |
