Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data	Sep. 27, 2011	Dec. 28, 2010
Condensed Consolidated Balance Sheets
Receivables, allowance for doubtful accounts (in dollars)	$ 44	$ 222
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	70,012,385	72,222,991
Common stock, shares outstanding	70,012,385	72,222,991