Cover Page - shares	9 Months Ended
	Jan. 31, 2022	Mar. 08, 2022
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jan. 31, 2022
Document Transition Report	false
Entity File Number	0-5286
Entity Registrant Name	KEWAUNEE SCIENTIFIC CORP /DE/
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 Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		2,789,873
Amendment Flag	false
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q3
Entity Central Index Key	0000055529
Current Fiscal Year End Date	--04-30