6. Debt

Term Loan

At December 31, 2010, under the terms of our amended credit agreement, the term loan and revolving line of credit bear interest at a stated rate of 3.5% plus LIBOR, or a stated rate of 0.75% plus Wells Fargo’s prime rate (or, if greater, the federal funds rate plus 0.5% or three month LIBOR plus 1.0%). Interest on the term loans and the revolver is payable monthly, or for LIBOR loans, at the end of the applicable 1-, 2-, or 3-month interest period. Principal payments on the term loan are paid in quarterly installments equal to 3.75% of the principal amount of term loans, with the balance of all term loans and the revolver due on June 30, 2014. Debt issuance costs incurred in connection with the Credit Agreement are deferred and amortized over the remaining term of the arrangement.

In February 2011, we entered into an amendment to the Credit Agreement. Under terms of the February 2011 amendment, our revolving line of credit was increased from $10.0 million to $37.0 million. In addition, the interest rates on the term loan and revolving line of credit vary dependent on defined leverage ratios and range from a stated rate of 2.75% — 3.25% plus LIBOR or a stated rate of 0.0% — 0.5% plus Wells Fargo’s prime rate (or, if greater, the federal funds rate plus 0.5% or three month LIBOR plus 1.0%). Principal payments on the term loan and outstanding revolver balance remain consistent with our amended credit agreement.

As of September 30, 2011, we have total outstanding debt of $57.9 million and $37.0 million available under our revolving line of credit. We have unamortized debt issuance costs of $1.1 million and $1.3 million at September 30, 2011 and December 31, 2010, respectively. As of September 30, 2011, we are in compliance with our debt covenants.