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Document and Entity Information - USD ($)
 12 Months Ended
Apr. 30, 2017
Oct. 30, 2016
Document And Entity Information [Abstract]    
Document Type 10-K  
Amendment Flag false  
Document Period End Date Apr. 30, 2017  
Document Fiscal Year Focus 2017  
Document Fiscal Period Focus FY  
Trading Symbol CFI  
Entity Registrant Name CULP INC  
Entity Central Index Key 0000723603  
Current Fiscal Year End Date --04-30  
Entity Well-known Seasoned Issuer No  
Entity Current Reporting Status Yes  
Entity Voluntary Filers No  
Entity Filer Category Accelerated Filer  
Entity Common Stock, Shares Outstanding 12,356,631  
Entity Public Float   $ 304,910,582