Stock Plans and Stock Compensation Expense Summary of Stock Options by Exercise Price Range (Details) (USD $)	12 Months Ended
Dec. 28, 2013
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Domain]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding	660,355
Options Outstanding, Weighted-Average Remaining Contractual Life	2 years 1 month
Options Outstanding, Weighted-Average Exercise Price	$ 11.33
Options Exercisable	630,855
Options Exercisable, Weighted-Average Remaining Contractual Life	1 year 11 months
Options Exercisable, Weighted-Average Exercise Price	$ 11.63
Exercise Price Range One [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding	126,750
Options Outstanding, Weighted-Average Remaining Contractual Life	5 years 1 month
Options Outstanding, Weighted-Average Exercise Price	$ 4.93
Options Exercisable	97,250
Options Exercisable, Weighted-Average Remaining Contractual Life	4 years 10 months
Options Exercisable, Weighted-Average Exercise Price	$ 4.91
Exercise Price Range Two [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding	83,435
Options Outstanding, Weighted-Average Remaining Contractual Life	1 year 4 months
Options Outstanding, Weighted-Average Exercise Price	$ 6.96
Options Exercisable	83,435
Options Exercisable, Weighted-Average Remaining Contractual Life	1 year 4 months
Options Exercisable, Weighted-Average Exercise Price	$ 6.96
Exercise Price Range Three [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding	450,170
Options Outstanding, Weighted-Average Remaining Contractual Life	1 year 5 months
Options Outstanding, Weighted-Average Exercise Price	$ 13.94
Options Exercisable	450,170
Options Exercisable, Weighted-Average Remaining Contractual Life	1 year 5 months
Options Exercisable, Weighted-Average Exercise Price	$ 13.94

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(iii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Number of options outstanding, including both vested and non-vested options.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(i)-(ii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(i)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (e)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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