Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 28, 2013	Dec. 29, 2012
Allowance for doubtful accounts	$ (243)	$ (277)
Stockholders' Equity:
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	24,625,481	23,777,030
Common stock, shares outstanding	24,296,497	23,746,140