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Business Combination - Mattress Fabric Segment - Unaudited Pro Forma Consolidated Results of Operations (Detail) (Bodet And Horst [Member], USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Jul. 28, 2013	Jul. 29, 2012
Bodet And Horst [Member]
Business Acquisition [Line Items]
Net Sales	$ 70,141	$ 71,651
Income from operations	5,974	5,470
Net income	$ 3,230	$ 3,480
Net income per share, basic	$ 0.27	$ 0.28
Net income per share, diluted	$ 0.26	$ 0.27

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The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 10

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The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

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-Name Accounting Standards Codification

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The pro forma income from continuing operations before changes in accounting and extraordinary items, net of tax effect, for the period as if the business combination or combinations had been completed at the beginning of a period.

+ References

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The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

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The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

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