Interest expense in the fourth quarter of 2008 decreased to $ 195,000 from $ 780,000 in the fourth quarter of 2007 , primarily due to decreases in interest on chassis purchases together with interest on distributor floor plan financing as well as lower debt levels and lower interest rates . Total debt under the Company 's credit facility at December 31 , 2008 was approximately $ 2.1 million , down from $ 2.5 million at September 30 , 2008 and $ 3.5 million at December 31 , 2007 .