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Benefit Plan (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jan. 02, 2015	Dec. 27, 2013	Dec. 28, 2012
Benefit Plan [Abstract]
Percentage of pre-tax annual compensation contributed to the plan	15.00%us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent
Percentage of matching contributions of employee	25.00%us-gaap_DefinedContributionPlanEmployersMatchingContributionAnnualVestingPercentage	25.00%us-gaap_DefinedContributionPlanEmployersMatchingContributionAnnualVestingPercentage	25.00%us-gaap_DefinedContributionPlanEmployersMatchingContributionAnnualVestingPercentage
Percentage of matching contributions of employee's gross salary	4.00%us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent	4.00%us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent	4.00%us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent
Company's matching contributions	$ 0.3us-gaap_DefinedBenefitPlanContributionsByEmployer	$ 0.3us-gaap_DefinedBenefitPlanContributionsByEmployer	$ 0.3us-gaap_DefinedBenefitPlanContributionsByEmployer

X

- Details

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Namespace Prefix:	us-gaap_
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- Definition

The increase in the fair value of plan assets from contributions made by the employer.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (b)(3)

-URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920

+ Details

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- Definition

Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

+ References

No definition available.

+ Details

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- Definition

Percentage of employer's matching contributions to a defined contribution plan that vests in a given year.

+ References

No definition available.

+ Details

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- Definition

Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan.

+ References

No definition available.

+ Details

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