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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.

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- Definition The amount of the unrecognized tax benefit of a position taken for which it is reasonably possible that the total amount thereof will significantly increase or decrease within twelve months of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 + Details
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- Definition Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Unrecognized Tax Benefit -URI http://asc.fasb.org/extlink&oid=6527854 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319 + Details
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- Definition The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319 + Details
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