| Document and Entity Information | Jun. 01, 2022 |
| Cover [Abstract] | |
| Entity Registrant Name | KEWAUNEE SCIENTIFIC CORP /DE/ |
| Amendment Flag | false |
| Entity Central Index Key | 0000055529 |
| Document Type | 8-K |
| Document Period End Date | Jun. 1, 2022 |
| Entity Incorporation State Country Code | DE |
| Entity File Number | 0-5286 |
| Entity Tax Identification Number | 38-0715562 |
| Entity Address, Address Line One | 2700 West Front Street |
| Entity Address, City or Town | Statesville |
| Entity Address, State or Province | NC |
| Entity Address, Postal Zip Code | 28677 |
| City Area Code | 704 |
| Local Phone Number | 873-7202 |
| Security 12b Title | Common Stock, $2.50 par value |
| Trading Symbol | KEQU |
| Security Exchange Name | NASDAQ |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
