Business Combination - Mattress Fabric Segment - Narrative (Detail) (Bodet And Horst [Member], USD $)	6 Months Ended
Oct. 27, 2013
Business Acquisition [Line Items]
Direct acquisition costs related to business combination	$ 83,000
Equipment [Member]
Business Acquisition [Line Items]
Tangible asset, useful life	7 years
Non-compete Agreement [Member]
Business Acquisition [Line Items]
Intangible asset, useful life	15 years
Customer Relationships [Member]
Business Acquisition [Line Items]
Intangible asset, useful life	17 years

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 25

-Paragraph 23

-URI http://asc.fasb.org/extlink&oid=21917927&loc=d3e1043-128460

Name:	us-gaap_BusinessCombinationAcquisitionRelatedCosts
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration