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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For each balance sheet presented, the amount of accumulated amortization for capitalized computer software costs.

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- Definition

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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Property, Equipment, and Capitalized Software Costs (Details) (USD $)	3 Months Ended	6 Months Ended			6 Months Ended		3 Months Ended		6 Months Ended
	Jun. 28, 2013	Jun. 28, 2013	Jun. 29, 2012	Dec. 31, 2012	Jun. 28, 2013 Minimum [Member]	Jun. 28, 2013 Maximum [Member]	Jun. 28, 2013 Capitalized Software [Member]	Jun. 29, 2012 Capitalized Software [Member]	Jun. 28, 2013 Capitalized Software [Member]	Jun. 29, 2012 Capitalized Software [Member]
Property, Plant and Equipment [Line Items]
Property, equipment and capitalized software	$ 28,342,000	$ 28,342,000		$ 26,905,000			$ 5,800,000	$ 5,100,000	$ 5,800,000	$ 5,100,000
Accumulated depreciation and amortization	(20,805,000)	(20,805,000)		(19,989,000)
Property, equipment and capitalized software, net	7,537,000	7,537,000		6,916,000
Accumulated amortization	3,800,000	3,800,000	2,200,000
Capitalized computer software, additions	600,000	700,000
Capitalized Computer Software Amortization Period					2 years	5 years
Depreciation and amortization expense		$ 1,291,000	$ 1,304,000				$ 300,000	$ 400,000	$ 600,000	$ 700,000