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Property, Plant and Equipment (Detail) (USD $) In Thousands, unless otherwise specified									12 Months Ended
	Apr. 27, 2014	Jan. 26, 2014	Oct. 27, 2013	Jul. 28, 2013	Apr. 28, 2013	Jan. 27, 2013	Oct. 28, 2012	Jul. 29, 2012	Apr. 27, 2014 land and improvements [Member] Minimum [Member]	Apr. 27, 2014 land and improvements [Member] Maximum [Member]	Apr. 27, 2014 buildings and improvements [Member] Minimum [Member]	Apr. 27, 2014 buildings and improvements [Member] Maximum [Member]	Apr. 27, 2014 leasehold improvements [Member]		Apr. 27, 2014 machinery and equipment [Member] Minimum [Member]	Apr. 27, 2014 machinery and equipment [Member] Maximum [Member]	Apr. 27, 2014 office furniture and equipment [Member] Minimum [Member]	Apr. 27, 2014 office furniture and equipment [Member] Maximum [Member]
Property, Plant and Equipment [Line Items]
depreciable lives									0 years	10 years	7 years	40 years		[1]	3 years	12 years	3 years	10 years
land and improvements	$ 741				$ 741
buildings and improvements	12,983				12,812
leasehold improvements	1,281				801
machinery and equipment	51,605				53,608
office furniture and equipment	6,865				6,587
capital projects in progress	3,941				1,733
property, plant and equipment, gross	77,416				76,282
accumulated depreciation and amortization	(46,040)				(45,688)
property, plant and equipment, net	$ 31,376	$ 30,115	$ 30,559	$ 30,808	$ 30,594	$ 30,055	$ 30,621	$ 31,016
[1] Shorter of life of lease or useful life.

X

- Definition

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

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- Definition

Amount before accumulated depreciation of building structures held for productive use including addition, improvement, or renovation to the structure, including, but not limited to, interior masonry, interior flooring, electrical, and plumbing.

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Amount of structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service.

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- Definition

Amount before accumulated depreciation of equipment commonly used in offices and stores that have no permanent connection to the structure of a building or utilities. Examples include, but are not limited to, desks, chairs, tables, and bookcases.

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Amount before accumulated deprecation and depletion of real estate held for productive use and additions or improvements to real estate held for productive use, examples include, but are not limited to, walkways, driveways, fences, and parking lots. Excludes land held for sale.

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Amount before accumulated depreciation of additions or improvements to assets held under a lease arrangement.

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Amount before accumulated depreciation of tangible personal property used to produce goods and services, including, but is not limited to, tools, dies and molds, computer and office equipment.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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