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Operating Segment and Geographic Information (Details 2) (USD $) In Thousands, unless otherwise specified	Dec. 27, 2014	Dec. 28, 2013	Dec. 29, 2012
Segment Reporting Information [Line Items]
Assets	$ 127,881us-gaap_Assets	$ 141,974us-gaap_Assets	$ 125,740us-gaap_Assets
North America [Member]
Segment Reporting Information [Line Items]
Assets	127,881us-gaap_Assets / us-gaap_StatementGeographicalAxis = us-gaap_NorthAmericaMember	127,393us-gaap_Assets / us-gaap_StatementGeographicalAxis = us-gaap_NorthAmericaMember	110,977us-gaap_Assets / us-gaap_StatementGeographicalAxis = us-gaap_NorthAmericaMember
Europe [Member]
Segment Reporting Information [Line Items]
Assets	$ 0us-gaap_Assets / us-gaap_StatementGeographicalAxis = us-gaap_EuropeMember	$ 14,581us-gaap_Assets / us-gaap_StatementGeographicalAxis = us-gaap_EuropeMember	$ 14,763us-gaap_Assets / us-gaap_StatementGeographicalAxis = us-gaap_EuropeMember

X

- Definition

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ 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 210.5-02.18)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682



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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 12

-Article 7



Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 18

-Article 5

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- Details

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- Details

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