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Share-based Compensation (Details 1) (USD $)	9 Months Ended
	Sep. 30, 2012	Oct. 02, 2011
Nonvested Share Awards Activity [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Nonvested shares, beginning balance	304,700
Granted, shares	145,100	152,100
Vested, shares	(107,675)
Forfeited, shares	(10,050)
Nonvested shares, ending balance	332,075
Weighted average grant date fair value, beginning of period	$ 13.03
Weighted average grant date fair value, Granted	$ 7.79
Weighted average grant date fair value, Vested	$ 12.34
Weighted average grant date fair value, Forfeited	$ 11.57
Weighted average grant date fair value, end of period	$ 11.01
Nonvested Share Unit Awards Activity [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Nonvested, share units, beginning	9,000
Granted, share units	12,000	9,000
Vested, share units	(2,250)
Forfeited, share units
Nonvested, share units, ending balance	18,750
Weighted average grant date fair value, beginning of period	$ 8.26
Weighted average grant date fair value, Granted	$ 6.33
Weighted average grant date fair value, Vested	$ 8.26
Weighted average grant date fair value, Forfeited
Weighted average grant date fair value, end of period	$ 7.02

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

+ 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)(iv)(3)

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- Definition

Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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Total number of shares issued during the period, including shares forfeited, as a result of Restricted Stock Awards.

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