Stock-Based Compensation (Schedule of Stock Options Activity) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 29, 2013	Dec. 30, 2012	Jan. 01, 2012
Number Of Shares
Balance outstanding at beginning of period, in shares	6,960	7,483	8,069
Granted, in shares	716	791	876
Forfeited or expired, in shares	(269)	(935)	(803)
Exercised, in shares	(165)	(379)	(659)
Balance outstanding at end of period, in shares	7,242	6,960	7,483
Exercisable, in shares	5,648
Vested and expected to vest, in shares	7,018
Weighted Average Exercise Price
Balance outstanding at beginning of period, in dollars per share	$ 2.55	$ 2.58	$ 2.74
Granted, in dollars per share	$ 3.26	$ 2.43	$ 2.81
Forfeited or expired, in dollars per share	$ 2.65	$ 3.04	$ 4.51
Exercised, in dollars per share	$ 2.21	$ 1.87	$ 2.46
Balance outstanding at end of period, in dollars per share	$ 2.62	$ 2.55	$ 2.58
Exercisable, in dollars per share	$ 2.54
Vested and expected to vest, in dollars per share	$ 2.61
Weighted Average Remaining Term
Balance outstanding	5 years 9 months
Exercisable	4 years 10 months 24 days
Vested and expected to vest	5 years 7 months 21 days
Aggregate Intrinsic Value
Balance outstanding	$ 9,260
Exercisable	7,760
Vested and expected to vest	$ 9,073