Acquisition Pro Forma Information, 2012 Acquisition (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
Dec. 28, 2014	Dec. 29, 2013	Dec. 30, 2012
Business Acquisition, Pro Forma Information [Abstract]
Restaurant sales, pro forma	$ 793,521	$ 800,264	$ 665,032
Net loss from continuing operations, pro forma	$ (31,364)	$ (9,964)	$ (24,935)
Basic and diluted net loss per share from continuing operations, pro forma	$ (1.02)	$ (0.43)	$ (1.10)

Business Acquisition, Pro Forma Earnings Per Share, Basic and Diluted

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- Details

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- Definition

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.

+ References

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

+ Details

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- Definition

The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

+ References

+ Details

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