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Receivables (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 26, 2012	Sep. 28, 2011	Sep. 26, 2012	Sep. 28, 2011	Dec. 28, 2011
Receivables [Abstract]
Allowance for doubtful accounts	$ (23,000)		$ (23,000)		$ (8,000)
Total current receivables, net	13,614,000		13,614,000		14,971,000
Noncurrent assets (included as a component of other noncurrent assets):
Notes receivable from franchisees and third parties	811,000		811,000		560,000
Interest income on notes receivables	100,000	100,000	100,000	200,000
Trade accounts receivable from franchisees [Member]
Receivables [Abstract]
Receivable, gross	9,289,000		9,289,000		9,452,000
Notes receivable from franchisees [Member]
Receivables [Abstract]
Receivable, gross	750,000		750,000		992,000
Vendor receivables [Member]
Receivables [Abstract]
Receivable, gross	1,066,000		1,066,000		2,311,000
Credit card receivables [Member]
Receivables [Abstract]
Receivable, gross	752,000		752,000		1,137,000
Other [Member]
Receivables [Abstract]
Receivable, gross	$ 1,780,000		$ 1,780,000		$ 1,087,000

X

- Definition

The total gross amount due to the entity within one year of the balance sheet date (or one operating cycle, if longer) from outside sources, including trade accounts receivable, notes and loans receivable, as well as any other types of receivables.

+ References

No definition available.

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- Definition

A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=7512638&loc=d3e5074-111524



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-Number 210

-Section 02

-Paragraph 4

-Article 5



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-Topic 210

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-Section S99

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-Subparagraph (SX 210.5-02.4)

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- Definition

The aggregate interest and fee income generated by: (1) loans the Entity has positive intent and ability to hold for the foreseeable future, or until maturity or payoff, including commercial and consumer loans, whether domestic or foreign, which may consist of: (a) industrial and agricultural; (b) real estate; and (c) real estate construction loans; (d) trade financing; (e) lease financing; (f) home equity lines-of-credit; (g) automobile and other vehicle loans; and (h) credit card and other revolving-type loans and (2) loans and leases held-for-sale which may include mortgage loans, direct financing, and sales-type leases.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 225

-Section S99

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-Subparagraph (SX 210.9-04.1)

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- Definition

An amount representing an agreement for an unconditional promise by the maker to pay the Entity (holder) a definite sum of money at a future date more than one year from the balance sheet date, net of any write-downs taken for collection uncertainty on the part of the holder. Such amount may include accrued interest receivable in accordance with the terms of the debt. The debt also may contain provisions and related items including a discount or premium, payable on demand, secured, or unsecured, interest bearing or noninterest bearing, among a myriad of other features and characteristics. This amount does not include amounts related to receivables held-for-sale.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

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-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.17)

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- Definition

The total amount due to the entity within one year of the balance sheet date (or one operating cycle, if longer) from outside sources, including trade accounts receivable, notes and loans receivable, as well as any other types of receivables, net of allowances established for the purpose of reducing such receivables to an amount that approximates their net realizable value.

+ References

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

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