Condensed Consolidated Balance Sheets (Parenthetical) (unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	Apr. 01, 2012	Jan. 01, 2012
Current Assets:
Allowance for doubtful accounts	$ 20	$ 10
Stockholders' Equity:
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	10,000	10,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	100,000	100,000
Common stock, shares issued	38,662	38,636
Common stock, shares outstanding	38,662	38,636