Stock-Based Compensation (Details 2) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011
Options
Beginning balance	2,348,162
Number of Shares Outstanding (Options), Exercised	(469,552)
Number of Shares Outstanding (Options), Granted	281,085
Number of Shares Outstanding (Options), Cancelled	(139,376)
Options Outstanding, Number Outstanding	2,020,319	2,348,162
Number of Shares Outstanding (Options), Exercisable at December 29, 2012	1,223,456
Weighted Average Exercise Price, Beginning Balance	$ 10.53
Weighted Average Exercise Price, Exercised	$ 6.52
Weighted Average Exercise Price, Granted	$ 16.74
Weighted Average Exercise Price, Cancelled	$ 15.07
Weighted Average Exercise Price, Ending Balance	$ 12.01	$ 10.53
Weighted Average Exercise Price, Exercisable at December 29, 2012	$ 10.11
Weighed Average Remaining Contractual Term, Opening	4 years 5 months 9 days	4 years 10 months 10 days
Weighed Average Remaining Contractual Term, Closing	4 years 5 months 9 days	4 years 10 months 10 days
Weighed Average Remaining Contractual Term, Exercisable at December 29, 2012	3 years 9 months 22 days
Aggregate Intrinsic Value, Opening	$ 0
Aggregate Intrinsic Value, Closing	6,770	0
Aggregate Intrinsic Value, Exercisable at December 29, 2012	$ 6