Unaudited Pro forma Information (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended	9 Months Ended
Sep. 26, 2014	Sep. 27, 2013	Sep. 26, 2014	Sep. 27, 2013
Business Combinations [Abstract]
Sales	$ 94,656	$ 93,681	$ 281,725	$ 273,429
Income from continuing operations	$ 5,342	$ 2,591	$ 12,404	$ 4,859
Earnings per share from continuing operations - Basic	$ 0.15	$ 0.08	$ 0.35	$ 0.14
Earnings per share from continuing operations - Diluted	$ 0.15	$ 0.08	$ 0.35	$ 0.14

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.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(2)-(3)

-URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463

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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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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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