Short-Term Investments

12 Months Ended

Dec. 31, 2011

Short-Term Investments [Abstract]

Short-Term Investments

4. SHORT-TERM INVESTMENTS

Short-term investments of $65.0 million at December 31, 2011 and 2010 are comprised of U.S. Treasury Bills that mature through June 15, 2012. The interest rate on the U.S. Treasury Bills is less than one percent. The investments are classified as held-to-maturity and recorded at cost. The fair value of the U.S. Treasury Bills at December 31, 2011 and 2010 approximated cost.