Stock-Based Compensation (Schedule of Stock Options Activity) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	9 Months Ended
	Sep. 29, 2013
Number Of Shares
Balance outstanding at beginning of period, in shares	6,960
Granted, in shares	103
Forfeited or expired, in shares	(265)
Exercised, in shares	(64)
Balance outstanding at end of period, in shares	6,734
Exercisable, in shares	5,506
Vested and expected to vest, in shares	6,541
Weighted Average Exercise Price
Balance outstanding at beginning of period, in dollars per share	$ 2.55
Granted, in dollars per share	$ 2.33
Forfeited or expired, in dollars per share	$ 2.65
Exercised, in dollars per share	$ 1.70
Balance outstanding at end of period, in dollars per share	$ 2.55
Exercisable, in dollars per share	$ 2.53
Vested and expected to vest, in dollars per share	$ 2.55
Weighted Average Remaining Term
Balance outstanding	5 years 7 months 10 days
Exercisable	5 years 0 months 7 days
Vested and expected to vest	5 years 6 months 7 days
Aggregate Intrinsic Value
Balance outstanding	$ 2,440
Exercisable	2,264
Vested and expected to vest	$ 2,407