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Commitments and Contingencies (Detail) (USD $)
 3 Months Ended 3 Months Ended
Jul. 29, 2012
Joint Product Development, Sales and Marketing Agreement on May 21, 2012 [Member]
Culp Lava Applied Sewn Solutions [Member]
Facility
Employee
Jul. 29, 2012
Mattress Fabrics [Member]
Purchase Commitment for Equipment [Member]
Apr. 29, 2012
Mattress Fabrics [Member]
Purchase Commitment for Equipment [Member]
Jul. 29, 2012
Pending Litigation [Member]
Environmental Issue [Member]
Jul. 29, 2012
Pending Litigation [Member]
Environmental Issue [Member]
Site of former manufacturing plant in West Hazleton, Pennsylvania [Member]
Commitments and Contingencies Disclosure [Line Items]          
Lawsuit filing date       February 5, 2008  
Actions taken by court which impacted the lawsuit         The lawsuit involves court judgments that have been entered against the plaintiffs and against defendant Chromatex, Inc. requiring them to pay costs incurred by the United States Environmental Protection Agency ("USEPA") responding to environmental contamination at the Site, in amounts approximating $8.6 million, plus unspecified future environmental costs.
Amount of judgment against plaintiffs for which recovery is being sought from defendants       $ 8,600,000  
Site maximum loss exposure representing contamination clean up costs incurred by the United States Environmental Protection Agency         13,000,000
Damages sought by plaintiffs         Costs incurred by the United States Environmental Protection Agency ("USEPA") responding to environmental contamination at the Site, in amounts approximating $8.6 million, plus unspecified future environmental costs.
Open purchase commitments   766,000 1,200,000    
Number of manufacturing facilities 2        
Projected capital investment to start the new business $ 1,000,000        
Period of capital investment in starting a new business 4 years        
Planned number of employees to start the new business 129