. the company reduced goodwill related to the r2 acquisition in the amount of approximately $ 2300 and $ 400 during the years ended september 27 , 2008 and september 29 , 2007 , respectively . the reduction in 2007 was primarily related to a change in the preliminary valuation of certain assets and liabilities acquired based on information received during the year . the decrease in goodwill in 2008 was related to the reduction of an income tax liability