Note 6.

Line of Credit

The Company amended its $9,000,000 line of credit with the Bank of America (the “Bank”) effective August 1, 2010, extending it for a two year period. The line of credit is drawn on from time to time as needed for equipment purchases and working capital. Amounts drawn against the line of credit bear interest at the Bank’s Prime Rate, or alternately the LIBOR rate plus 1.50 percentage points, and are secured by the Company’s cash invested with the Bank. The Company is in compliance with all debt covenants. The weighted average interest rate during the first six months of 2011 was 1.92%. At June 30, 2011, $7,700,000 was borrowed under the line of credit.