CONSOLIDATED BALANCE SHEETS [Parenthetical] (USD $) In Thousands, except Per Share data, unless otherwise specified	Dec. 28, 2012	Dec. 30, 2011
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	60,000	60,000
Common stock, shares issued	36,423	36,041
Common stock, shares outstanding	36,423	36,041