Note 10. Commitments and Contingencies Credit Facilities We have a line of credit arrangement with a bank which expires June 20, 2010. The line allows for borrowings of up to $8,000 at 0.9% over the LIBOR rate. On December 31, 2009 there was $0 outstanding on the line. We do not pay a fee for the unused portion of this line. We maintain certain marketable securities as collateral on behalf of our insurance carrier. As of December 31, 2009, the total balance of these government and agency securities is $24,400. The classification and valuation of these securities are discussed in  Note 2. Financial Instruments and Marketable Securities . During 2001, we completed the construction of a new building for our Kansas City warehouse, and completed an expansion of this warehouse in 2004. We were required to obtain financing for the construction and expansion of this facility under an Industrial Revenue Bond (IRB). We subsequently purchased 100% of the outstanding bonds under the IRB at par. In addition to purchasing the outstanding obligations, we have a right of offset included in the IRB debt agreement. Accordingly, we have netted the impact of the IRB in the accompanying consolidated financial statements. The outstanding balance of the IRB was $9,733 at December 31, 2009 and 2008. Legal Contingencies We are involved in certain legal actions. The outcomes of these legal actions are not within our complete control and may not be known for prolonged periods of time. In some actions, the claimants seek damages, as well as other relief, that could require significant expenditures or result in lost revenues. In accordance with Accounting Standards Codification (ASC) 450-10-05, Contingencies , we record a liability in the consolidated financial statements for these actions when a loss is known or considered probable and the amount can be reasonably estimated. If the reasonable estimate of a known or probable loss is a range, and no amount within the range is a better estimate than any other, the minimum amount of the range i