Net Income (Loss) Per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 30, 2012	Jan. 01, 2012	Jan. 02, 2011
Earnings Per Share [Abstract]
Net income (loss), effect of stock options and other awards, basic	$ (12,314)	$ (7,594)	$ 123
Net income (loss), effect of stock options and other awards, diluted	$ (12,314)	$ (7,594)	$ 123
Shares:
Basic (in shares)	41,831,000	36,792,000	35,729,000
Incremental (shares)	0	0	3,309,000
Diluted (in shares)	41,831,000	36,792,000	39,038,000
Per Share Amount:
Basic (in dollars per share)	$ (0.29)	$ (0.21)	$ 0.00
Diluted (in dollars per share)	$ (0.29)	$ (0.21)	$ 0.00
Antidilutive securities excluded from computation of earnings per share	7,600,000	8,000,000	20,000