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Cash, Cash Equivalents and Investments
12 Months Ended
Dec. 31, 2011
Cash, Cash Equivalents and Investments

Note 3—Cash, Cash Equivalents and Investments

As of December 31, 2011 and 2010, all investments are classified as short-term and available-for-sale on the accompanying balance sheets. We did not own any securities with unrealized loss positions as of December 31, 2011 or 2010. Investment income consists primarily of interest income.