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Income Taxes (Detail) (USD $)
 3 Months Ended 6 Months Ended 12 Months Ended
Oct. 27, 2013
Oct. 28, 2012
Oct. 27, 2013
Oct. 28, 2012
Apr. 28, 2013
Income Taxes [Line Items]          
Income taxes $ 1,718,000 $ (3,736,000) $ 4,023,000 $ (1,889,000)  
Income tax rate     38.90% (19.10%)  
Statutory rate     34.00% 34.00%  
Increase in income tax rate from adjustments to the state of North Carolina loss carryforwards for the decrease in future North Carolina corporate income tax rates     3.00%    
Income tax expense related to the adjustments of the state of North Carolina loss carryforwards from the decrease in future North Carolina corporate income tax rates     273,000    
Decrease in income tax rate from the lower statutory income tax rates in foreign jurisdictions compared with the U.S statutory income tax rate     (6.00%) (5.00%)  
Increase in income tax rate from an increase in unrecognized tax benefits     4.00% 4.00%  
Increase in income tax rate for stock-based compensation and other miscellaneous items     3.90% 1.90%  
Increase in effective income tax rate from the establishment of a deferred tax liability for undistributed earnings       67.00%  
Income tax expense (benefit) from change in treatment of undistributed earnings       6,600,000  
Undistributed earnings from our foreign subsidiaries that will be distributed to the parent company 57,700,000 55,600,000 57,700,000 55,600,000 56,700,000
Deferred tax liability, undistributed earnings from foreign subsidiaries 7,100,000 6,600,000 7,100,000 6,600,000 7,000,000
U.S. income and foreign withholding taxes     22,400,000 21,600,000 22,000,000
U.S. foreign income tax credits     15,300,000 15,000,000 15,000,000
Current deferred tax asset 7,745,000 4,470,000 7,745,000 4,470,000 7,709,000 [1]
Non-current deferred tax asset 661,000 4,738,000 661,000 4,738,000 753,000 [1]
Non-current deferred tax liability 5,016,000 856,000 5,016,000 856,000 3,075,000 [1]
Unrecognized tax benefits 13,500,000 12,800,000 13,500,000 12,800,000 13,100,000
Unrecognized tax benefits that would favorably impact effective income tax rate if recognized 4,100,000 4,200,000 4,100,000 4,200,000 4,200,000
Expected increase in unrecognized tax benefits related to double taxation under applicable tax treaties with foreign tax jurisdictions 848,000   848,000    
Net Non-current Deferred Income Tax Liability [Member]
          
Income Taxes [Line Items]          
Unrecognized tax benefits 9,400,000   9,400,000   8,900,000
Net Non-current Deferred Income Tax Assets [Member]
          
Income Taxes [Line Items]          
Unrecognized tax benefits   8,600,000   8,600,000  
Income Taxes Payable - Long-Term [Member]
          
Income Taxes [Line Items]          
Unrecognized tax benefits 4,100,000 4,200,000 4,100,000 4,200,000 4,200,000
Canada and China [Member]
          
Income Taxes [Line Items]          
Decrease in income tax rate from the lower statutory income tax rates in foreign jurisdictions compared with the U.S statutory income tax rate     (6.00%) (5.00%)  
Valuation allowance 0 0 0 0 0
North Carolina [Member]
          
Income Taxes [Line Items]          
Increase in income tax rate from adjustments to the state of North Carolina loss carryforwards for the decrease in future North Carolina corporate income tax rates     3.00%    
Income tax expense related to the adjustments of the state of North Carolina loss carryforwards from the decrease in future North Carolina corporate income tax rates     273,000    
U.S. Tax Authorities [Member]
          
Income Taxes [Line Items]          
Increase (decrease) in effective income tax rate from the change of valuation allowance for net deferred income tax assets       (123.00%)  
Income tax expense (benefit) related to changes in the valuation allowance for deferred tax assets       (12,200,000)  
Current deferred tax asset 7,400,000 4,100,000 7,400,000 4,100,000 7,400,000
Non-current deferred tax asset   3,900,000   3,900,000  
Non-current deferred tax liability 4,100,000   4,100,000   2,000,000
U.S. Tax Authorities [Member] | Canada and China Subsidiaries [Member]
          
Income Taxes [Line Items]          
Increase in effective income tax rate from the establishment of a deferred tax liability for undistributed earnings       67.00%  
Income tax expense (benefit) from change in treatment of undistributed earnings       6,600,000  
Poland [Member] | Culp Europe [Member]
          
Income Taxes [Line Items]          
Increase (decrease) in effective income tax rate from the change of valuation allowance for net deferred income tax assets       2.00%  
Poland [Member] | Culp Europe [Member] | Deferred Tax Asset Loss Carryforwards [Member]
          
Income Taxes [Line Items]          
Valuation allowance 315,000 209,000 315,000 209,000 241,000
China [Member]
          
Income Taxes [Line Items]          
Current deferred tax asset 386,000 369,000 386,000 369,000 325,000
Non-current deferred tax asset 661,000 866,000 661,000 866,000 753,000
Canada [Member]
          
Income Taxes [Line Items]          
Non-current deferred tax liability 945,000 856,000 945,000 856,000 1,100,000
U.S. Tax Authorities and Poland Tax Authorities [Member] | Deferred Tax Asset Loss Carryforwards [Member]
          
Income Taxes [Line Items]          
Valuation allowance 1,000,000 825,000 1,000,000 825,000 963,000
U.S. State Tax [Member] | Deferred Tax Asset Loss Carryforwards [Member]
          
Income Taxes [Line Items]          
Valuation allowance $ 722,000 $ 616,000 $ 722,000 $ 616,000 $ 722,000
[1] Derived from audited financial statements.