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Document and Entity Information
 6 Months Ended
Oct. 31, 2014
Dec. 08, 2014
Document And Entity Information [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Oct. 31, 2014  
Document Fiscal Year Focus 2015  
Document Fiscal Period Focus Q2  
Trading Symbol KEQU  
Entity Registrant Name KEWAUNEE SCIENTIFIC CORP /DE/  
Entity Central Index Key 0000055529  
Current Fiscal Year End Date --04-30  
Entity Filer Category Smaller Reporting Company  
Entity Common Stock, Shares Outstanding   2,626,848