Fair Values of Financial Instruments (Details) (USD $) In Thousands, unless otherwise specified	Mar. 21, 2015	Dec. 27, 2014	Mar. 22, 2014
Financial assets, Carrying Amount
Cash and cash equivalents, Carrying Amount	$ 1,522	$ 3,232	$ 1,603
Time deposits, Carrying Amount	1,450us-gaap_DepositsAssetsCurrent	1,450us-gaap_DepositsAssetsCurrent	1,450us-gaap_DepositsAssetsCurrent
Financial liabilities, Carrying Amount
Notes payable, Carrying Amount	13,742us-gaap_NotesPayableCurrent	16,200us-gaap_NotesPayableCurrent	13,871us-gaap_NotesPayableCurrent
Current portion of Long-term debt, Carrying Amount	1,592us-gaap_LongTermDebtCurrent	1,586us-gaap_LongTermDebtCurrent	1,569us-gaap_LongTermDebtCurrent
Long-term debt, Carrying Amount	2,960us-gaap_LongTermDebtNoncurrent	3,360us-gaap_LongTermDebtNoncurrent	4,551us-gaap_LongTermDebtNoncurrent
Fair Value, Inputs, Level 1 [Member]
Financial assets, Fair Value
Cash and cash equivalents, Fair Value	1,522	3,232	3,027
Time deposits, Fair Value	1,450	1,450	1,450
Financial liabilities, Fair Value
Notes payable, Fair Value	0	0	0
Current portion of Long-term debt, Fair Value	0	0	0
Long-term debt, Fair Value	0	0	0
Fair Value, Inputs, Level 2 [Member]
Financial assets, Fair Value
Cash and cash equivalents, Fair Value	0	0	0
Time deposits, Fair Value	0	0	0
Financial liabilities, Fair Value
Notes payable, Fair Value	13,742	16,200	13,871
Current portion of Long-term debt, Fair Value	1,592	1,586	1,569
Long-term debt, Fair Value	2,960	3,360	4,551
Fair Value, Inputs, Level 3 [Member]
Financial assets, Fair Value
Cash and cash equivalents, Fair Value	0	0	0
Time deposits, Fair Value	0	0	0
Financial liabilities, Fair Value
Notes payable, Fair Value	0	0	0
Current portion of Long-term debt, Fair Value	0	0	0
Long-term debt, Fair Value	$ 0	$ 0	$ 0

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Cash

-URI http://asc.fasb.org/extlink&oid=6506951

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Cash Equivalents

-URI http://asc.fasb.org/extlink&oid=6507016

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 1

-Article 5

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.1)

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-Section 45

-Paragraph 1

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 4

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- Definition

Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

+ References

+ Details

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- Definition

Carrying value of amounts transferred to third parties for security purposes that are expected to be returned or applied towards payment within one year or during the operating cycle, if shorter.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.17)

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 17

-Article 5

+ Details

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- Definition

Fair value portion of deposit liabilities held by the entity, including, but not limited to, foreign and domestic, interest and noninterest bearing, demand deposits, saving deposits, negotiable orders of withdrawal (NOW) and time deposits.

+ References

No definition available.

+ Details

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- Definition

Amount of long-term debt, after unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19,20)

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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

+ Details

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- Definition

Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22)

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

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-Paragraph 22

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+ Details

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- Definition

Sum of the carrying values as of the balance sheet date of the portions of long-term notes payable due within one year or the operating cycle if longer.

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-Publisher FASB

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- Definition

Fair value portion of notes payable.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

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-Section 02

-Paragraph 19, 20, 22

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- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents the amount of short-term debt existing as of the balance sheet date.

+ References

No definition available.

+ Details

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