Cash, Cash Equivalents and Short-Term Investments

6 Months Ended

Jun. 30, 2011

Cash, Cash Equivalents and Short-Term Investments [Abstract]

Cash, Cash Equivalents and Short-Term Investments

3. Cash, Cash Equivalents and Short-Term Investments

     At June 30, 2011 and December 31, 2010, the amortized cost of the Company’s cash, cash equivalents and short-term investments approximated their fair values. The Company considers all liquid investments purchased with a maturity of three months or less to be cash equivalents. All short-term investments at June 30, 2011 mature in less than one year.

     The Company invests its cash and cash equivalents and short-term investments in money market funds, commercial paper and corporate and government notes. All of these securities are classified as available-for-sale with the unrealized gain and loss being recorded in accumulated other comprehensive income; there were no unrealized gains or losses at June 30, 2011 and December 31, 2010.