Segment Information - Financial Information for Operating Segments (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
Nov. 02, 2014	Oct. 27, 2013	Nov. 02, 2014	Oct. 27, 2013
Segment Reporting Information [Line Items]
Net sales	$ 73,991	$ 70,589	$ 150,051	$ 140,730
Gross profit	12,278	12,235	24,993	25,308
Selling, general, and administrative expenses	7,379	7,200	14,798	14,299
Income from operations	4,899	5,035	10,195	11,009
Interest expense		(99)	(67)	(239)
Interest income	153	102	294	195
Other expense	(162)	(224)	(73)	(616)
Income before income taxes	4,890	4,814	10,349	10,349
Operating Segments [Member]
Segment Reporting Information [Line Items]
Selling, general, and administrative expenses	5,877	5,790	11,903	11,430
Income from operations	6,401	6,445	13,090	13,878
Operating Segments [Member] \| Mattress Fabrics [Member]
Segment Reporting Information [Line Items]
Net sales	43,038	40,331	85,860	78,494
Gross profit	7,324	7,322	14,527	14,713
Selling, general, and administrative expenses	2,592	2,620	5,166	4,994
Income from operations	4,733	4,702	9,361	9,719
Operating Segments [Member] \| Upholstery Fabrics [Member]
Segment Reporting Information [Line Items]
Net sales	30,953	30,258	64,191	62,236
Gross profit	4,954	4,913	10,466	10,595
Selling, general, and administrative expenses	3,285	3,170	6,737	6,436
Income from operations	1,668	1,743	3,729	4,159
Unallocated corporate [Member]
Segment Reporting Information [Line Items]
Selling, general, and administrative expenses	1,502	1,410	2,895	2,869
Income from operations	$ (1,502)	$ (1,410)	$ (2,895)	$ (2,869)

Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

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- Definition

This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest.

+ References

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-Publisher FASB

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-Topic 940

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-Topic 235

-SubTopic 10

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 10

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- Definition

Amount of the cost of borrowed funds accounted for as interest expense.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 20

-Section 50

-Paragraph 1

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-Name Accounting Standards Codification

-Topic 942

-SubTopic 225

-Section S99

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-Section 04

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- Definition

Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities.

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- Definition

The net result for the period of deducting operating expenses from operating revenues.

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No definition available.

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- Definition

The net amount of other income and expense amounts, the components of which are not separately disclosed on the income statement, resulting from ancillary business-related activities (that is, excluding major activities considered part of the normal operations of the business) also known as other nonoperating income (expense) recognized for the period. Such amounts may include: (a) dividends, (b) interest on securities, (c) net gains or losses on securities, (d) unusual costs, (e) gains or losses on foreign exchange transactions, and (f) miscellaneous other income and expense items.

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-Topic 225

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- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

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- Definition

The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

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-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.4)

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