Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 28, 2012	Dec. 30, 2011
Consolidated Balance Sheets [Abstract]
Accounts receivable, allowance	$ 8	$ 5
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares outstanding
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	90,000,000	90,000,000
Common Stock, shares issued	27,910,851	22,910,649
Common stock, shares outstanding	27,910,851	22,910,649
Treasury stock, shares	601,944	601,944