Guarantees and Other Commitments and Contingencies Loan Guarantees (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 30, 2012	Dec. 29, 2013
Franchisee Loan Guarantees [Line Items]
Guarantor Obligations, Current Carrying Value		$ 202
Proceeds from Collection of Notes Receivable	3,000
Franchisees [Member]
Franchisee Loan Guarantees [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	2,000	1,842
New store development and equipment financing [Member]
Franchisee Loan Guarantees [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted		9,665
New store development and equipment financing [Member] \| Other Liabilities [Member]
Franchisee Loan Guarantees [Line Items]
Guarantor Obligations, Current Carrying Value		$ 682

The current carrying amount of the liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 460

-SubTopic 10

-Section 50

-Paragraph 4

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12069-110248

+ Details

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Period Type:	instant

- Definition

Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 460

-SubTopic 10

-Section 50

-Paragraph 4

-Subparagraph (b)(1)

-URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12069-110248

+ Details

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- Definition

The cash inflow associated with principal collections from a borrowing supported by a written promise to pay an obligation.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 12

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585

+ Details

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Balance Type:	debit
Period Type:	duration

- Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration