Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data	Oct. 01, 2011	Jan. 01, 2011
Condensed Consolidated Balance Sheets [Abstract]
Accounts receivable, allowance for doubtful accounts	$ 326	$ 369
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
Common stock, shares authorized	30,000,000	30,000,000
Common stock, shares issued	8,951,833	8,986,418
Common stock, shares outstanding	8,951,833	8,986,418