CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Mar. 31, 2013	Dec. 30, 2012
Preferred Stock:
Shares authorized (in shares)	5,000,000	5,000,000
Par value (in dollars per share)	$ 0.001	$ 0.001
Shares outstanding (in shares)	0	0
Common Stock:
Par value (in dollars per share)	$ 0.001	$ 0.001
Shares authorized (in shares)	195,000,000	195,000,000
Shares issued (in shares)	56,654,577	56,613,024
Shares outstanding (in shares)	56,654,577	56,613,024