CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Mar. 25, 2012	Dec. 25, 2011
CONDENSED CONSOLIDATED BALANCE SHEETS
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares outstanding	0	0
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized	195,000,000	195,000,000
Common stock, shares issued	32,511,287	32,421,135
Common stock, shares outstanding	32,511,287	32,421,135