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Income Taxes - Deferred Income Taxes - Valuation Allowance - Narrative (Detail) - USD ($)
12 Months Ended
May 01, 2016
May 03, 2015
Apr. 27, 2014
Apr. 28, 2013
Income Taxes [Line Items]        
Valuation allowance $ 590,000 $ 922,000    
U.S. Tax Authorities and Poland Tax Authorities [Member] | Valuation Allowance, Operating Loss Carryforwards [Member]        
Income Taxes [Line Items]        
Valuation allowance 590,000 922,000    
U.S. State Tax [Member] | Valuation Allowance, Operating Loss Carryforwards [Member]        
Income Taxes [Line Items]        
Valuation allowance $ 518,000 561,000 $ 666,000  
Poland [Member] | Culp Europe [Member]        
Income Taxes [Line Items]        
Income tax expense (benefit) related to changes in the valuation allowance for deferred tax assets   50,000 70,000 $ 241,000
Operating loss carryforwards, expiration period 5 years      
Income tax expense (benefit) related to change in net loss operating carryforwards $ (289,000)      
Poland [Member] | Valuation Allowance, Operating Loss Carryforwards [Member] | Culp Europe [Member]        
Income Taxes [Line Items]        
Valuation allowance 72,000 361,000 311,000  
Canada and China [Member]        
Income Taxes [Line Items]        
Valuation allowance 0 0    
U.S. Tax Authorities [Member]        
Income Taxes [Line Items]        
Income tax expense (benefit) related to changes in the valuation allowance for deferred tax assets $ (43,000) $ (105,000) $ (56,000)