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Cover Page - USD ($)
 12 Months Ended
Apr. 30, 2023
Jun. 26, 2023
Oct. 31, 2022
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Apr. 30, 2023    
Current Fiscal Year End Date --04-30    
Document Transition Report false    
Entity File Number 0-5286    
Entity Registrant Name KEWAUNEE SCIENTIFIC CORPORATION    
Entity Incorporation, State or Country Code DE    
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 28677-2927    
City Area Code 704    
Local Phone Number 873-7202    
Title of 12(b) Security Common Stock $2.50 par value    
Trading Symbol KEQU    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag false    
Entity Shell Company false    
Entity Public Float     $ 37,907,714
Entity Common Stock, Shares Outstanding   2,879,785  
Documents Incorporated by Reference [Text Block] DOCUMENTS INCORPORATED BY REFERENCE: Those portions of the Company's proxy statement for use in connection with Kewaunee Scientific Corporation's annual meeting of stockholders to be held on August 23, 2023, indicated in this report are incorporated by reference into Part III hereof.    
Amendment Flag false    
Document Fiscal Year Focus 2023    
Document Fiscal Period Focus FY    
Entity Central Index Key 0000055529