Employee Stock Ownership Plan (Narrative) (Details) (USD $)	3 Months Ended
Mar. 30, 2014	Mar. 31, 2013
Employee Stock Ownership Plan [Abstract]
Contributions charged to expense	$ 600,000	$ 800,000
Redeemable common stock repurchased, shares	695	562
Redeemable common stock repurchased, value	$ 11,000	$ 10,000

The amount of plan compensation cost recognized during the period.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 40

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6418621&loc=d3e17540-113929

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- Definition

Number of stock bought back by the entity at the exercise price or redemption price.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

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- Definition

Equity impact of the value of stock bought back by the entity at the exercise price or redemption price.

+ References

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