Net Income (Loss) Per Share (Details) In Thousands, unless otherwise specified	12 Months Ended
Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Reconciliation of the basic and diluted net income per share computations
Weighted average common shares outstanding used in basic net income (loss) per share calculation	23,290	23,358	22,743
Potential dilutive common stock equivalents, using treasury stock method	0	487	737
Weighted average shares used in diluted net income (loss) per share calculation	23,290	23,845	23,480
Net Income Per Share (Textual) [Abstract]
Weighted average common share equivalents consisting of stock options included in the calculation of diluted net income per share	0	487	737

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The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation.

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 260

-SubTopic 10

-Section 50

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-Publisher FASB

-Name Accounting Standards Codification

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Weighted-Average Number of Common Shares Outstanding

-URI http://asc.fasb.org/extlink&oid=6528421

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