Property Plant and Equipment (Details) (USD $) In Thousands, unless otherwise specified	Dec. 29, 2012	Dec. 31, 2011
Property, plant and equipment
Total	$ 120,973	$ 107,467
Less-accumulated depreciation	(72,215)	(68,563)
Property, plant and equipment, net	48,758	38,904
Buildings [Member]
Property, plant and equipment
Total	20,460	20,159
Machinery, equipment and tooling [Member]
Property, plant and equipment
Total	48,830	44,441
Furniture, fixtures and leasehold improvements [Member]
Property, plant and equipment
Total	3,384	3,457
Computer and other equipment [Member]
Property, plant and equipment
Total	$ 48,299	$ 39,410

The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement.

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Gross amount of long-lived 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, furniture and fixtures, and computer equipment.

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- Definition

Amount, net of accumulated depreciation, depletion and amortization, of long-lived 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, furniture and fixtures, and computer equipment.

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