Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Per Share data, unless otherwise specified	Dec. 28, 2013	Dec. 29, 2012
Consolidated Balance Sheets [Abstract]
Accounts receivable, allowance for doubtful accounts	$ 1,036	$ 1,614
PMC special shares convertible into common stock, shares	1,019	1,029
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	900,000	900,000
Common stock, shares issued	194,415	200,924
Common stock, shares outstanding	194,415	200,924