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Business Combinations (Detail) - USD ($)			1 Months Ended				3 Months Ended	12 Months Ended
Business Combinations (Detail) - USD ($)	Jun. 22, 2018	Apr. 01, 2018	Sep. 30, 2019	Jun. 30, 2019	Aug. 31, 2018	May 31, 2018	Jul. 29, 2018	Apr. 29, 2018
Business Acquisition [Line Items]
Contingent consideration-earn-out obligation							$ 5,600,000
Carrying amount of non-controlling interest							4,540,000
Net income attributable to non-controlling interest							$ 8,000
Read Window Products, LLC [Member]
Business Acquisition [Line Items]
Base purchase price of consideration transferred		$ 5,700,000
Payment for acquisition		$ 4,500,000				$ 375,000
Goodwill, statutory period deductible for income tax purposes							15 years
Contingent consideration arrangement, description							The Asset Agreement contains a contingent consideration arrangement that requires us to pay a former shareholder of Read and earn-out payment based on adjusted EBITDA as defined in the agreement for calendar year 2018 in excess of fifty percent of a pre-established adjusted EBITDA target as defined in the agreement.
Contingent consideration arrangement, basis for amount							Based on historical and projected financial results in relation to the pre-established adjusted EBITDA target, we currently believe a contingent payment will not be made, and therefore, no contingent liability has been recorded.
Contingent liability							$ 0
eLuxury [Member]
Business Acquisition [Line Items]
Base purchase price of consideration transferred	$ 12,500,000
Payment for acquisition	$ 11,600,000
Goodwill, statutory period deductible for income tax purposes							15 years
Contingent consideration arrangement, description							The Equity Agreement contains a contingent consideration arrangement that requires us to pay the seller who is also the shareholder of the noncontrolling interest an earn-out payment based on eLuxury’s adjusted EBITDA for the twelve month period ending August 31, 2021, as defined in the Equity Agreement.
Contingent consideration arrangement, basis for amount							We recorded a contingent liability for this earn-out obligation at its fair value totaling $5.6 million based on the Black Scholes pricing model.
Majority ownership percentage acquired	80.00%
Consideration for acquisition	$ 18,130,000
Contingent consideration-earn-out obligation	$ 5,600,000
Noncontrolling interest	20.00%
Carrying amount of non-controlling interest							$ 4,540,000
Non-controlling interest	$ 4,532,000
Net income attributable to non-controlling interest							8,000
Revenue							2,600,000
Net income							27,000
Selling, General and Administrative Expenses [Member] \| Read Window Products, LLC [Member]
Business Acquisition [Line Items]
Business acquisition costs								$ 339,000
Selling, General and Administrative Expenses [Member] \| eLuxury [Member]
Business Acquisition [Line Items]
Business acquisition costs							$ 270,000
Customer Relationships [Member] \| Read Window Products, LLC [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets, useful life							9 years
Minimum [Member] \| Equipment [Member] \| Read Window Products, LLC [Member]
Business Acquisition [Line Items]
Property, plant and equipment, useful life							3 years
Minimum [Member] \| Equipment [Member] \| eLuxury [Member]
Business Acquisition [Line Items]
Property, plant and equipment, useful life							5 years
Maximum [Member] \| Equipment [Member] \| Read Window Products, LLC [Member]
Business Acquisition [Line Items]
Property, plant and equipment, useful life							10 years
Maximum [Member] \| Equipment [Member] \| eLuxury [Member]
Business Acquisition [Line Items]
Property, plant and equipment, useful life							10 years
Subsequent Event [Member] \| eLuxury [Member]
Business Acquisition [Line Items]
Payment for acquisition					$ 185,000
Scenario, Forecast [Member] \| Read Window Products, LLC [Member]
Business Acquisition [Line Items]
Payment for acquisition				$ 763,000
Scenario, Forecast [Member] \| eLuxury [Member]
Business Acquisition [Line Items]
Payment for acquisition			$ 749,000
Shareholders' equity attributable to Culp Inc. \| eLuxury [Member]
Business Acquisition [Line Items]
Net income (loss) allocation percentage	70.00%
Non-Controlling Interest \| eLuxury [Member]
Business Acquisition [Line Items]
Net income (loss) allocation percentage	30.00%