Condensed Consolidated Balance Sheets (Parenthetical) (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 30, 2013	Dec. 29, 2012
Condensed Consolidated Balance Sheets [Abstract]
Accounts receivable, allowance for doubtful accounts	$ 200	$ 146
Convertible preferred stock, par value	$ 0.01	$ 0.01
Convertible preferred stock, shares authorized	2,000,000	2,000,000
Convertible preferred stock, shares issued	500,000	500,000
Convertible preferred stock, shares outstanding	500,000	500,000
Liquidation preference, value	$ 5,000	$ 5,000
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	30,000,000	30,000,000
Common stock, shares issued	8,558,006	8,452,971
Common stock, shares outstanding	8,558,006	8,452,971