Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 28, 2012	Dec. 30, 2011	Dec. 31, 2010
U.S. and foreign components of income (loss) before income taxes
U.S. operations	$ (5,546)	$ 4,839	$ 14,585
Foreign operations	12,243	17,601	10,225
Income before provision (benefit) for income taxes	$ 6,697	$ 22,440	$ 24,810

The portion of earnings or loss from continuing operations before income taxes that is attributable to domestic operations.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(h)(1)(i))

-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph h

-Subparagraph 1(i)

-Article 4

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The portion of earnings or loss from continuing operations before income taxes that is attributable to foreign operations, which is defined as Income or Loss generated from operations located outside the entity's country of domicile.

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Sum of operating profit and nonoperating income or expense before Income or Loss from equity method investments, income taxes, extraordinary items, and noncontrolling interest.

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