Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Jan. 03, 2012	Dec. 28, 2010
Consolidated Balance Sheets [Abstract]
Receivables, allowances	$ 294	$ 200
Series B redeemable preferred stock, par value	$ 0.001	$ 0.001
Series B redeemable preferred stock, shares authorized	304,348	304,348
Series B redeemable preferred stock, shares issued	168,389	197,485
Series B redeemable preferred stock, shares outstanding	168,389	197,485
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	150,000,000	150,000,000
Common stock, shares issued	67,280,485	63,734,961
Common stock, shares outstanding	67,280,485	63,734,961