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Cash, Cash Equivalents and Marketable Securities and Assets Measured at Fair Value

3 Months Ended

Mar. 31, 2013

Cash, Cash Equivalents and Marketable Securities and Assets Measured at Fair Value [Abstract]

Cash, Cash Equivalents and Marketable Securities and Assets Measured at Fair Value

Note 3. Cash, Cash Equivalents and Marketable Securities and Assets Measured at Fair Value

Our cash, cash equivalents and marketable securities are as follows (in thousands):

		Cash, Cash Equivalents and Marketable Securities
		Amortized Cost				Unrealized Gains				Unrealized Losses				Estimated Fair Value				Accrued Interest				Total Value
March 31, 2013
Cash and cash equivalents		$	28,714			$	—			$	—			$	28,714			$	—			$	28,714
Corporate securities			25,676				1				—				25,677				—				25,677
		$	54,390			$	1			$	—			$	54,391			$	—			$	54,391
Reported as:
Cash and cash equivalents		$	28,714			$	—			$	—			$	28,714			$	—			$	28,714
Marketable securities			25,676				1				—				25,677				—				25,677
		$	54,390			$	1			$	—			$	54,391			$	—			$	54,391
Maturities:
Matures in one year or less		$	54,390			$	1			$	—			$	54,391			$	—			$	54,391
Matures one to three years			—				—				—				—				—				—
		$	54,390			$	1			$	—			$	54,391			$	—			$	54,391
December 31, 2012
Cash and cash equivalents		$	49,352			$	3			$	—			$	49,355			$	—			$	49,355
Corporate securities		$	6,898				1				—				6,899				—				6,899
		$	56,250			$	4			$	—			$	56,254			$	—			$	56,254
Reported as:
Cash and cash equivalents		$	49,352			$	3			$	—			$	49,355			$	—			$	49,355
Marketable securities			6,898				1				—				6,899				—				6,899
		$	56,250			$	4			$	—			$	56,254			$	—			$	56,254
Maturities:
Matures in one year or less		$	56,250			$	4			$	—			$	56,254			$	—			$	56,254
Matures one to three years			—				—				—				—				—				—
		$	56,250			$	4			$	—			$	56,254			$	—			$	56,254

We did not realize any gains or losses on our investments in marketable securities during the first quarter of 2013 or 2012. To date we have not recorded any impairment charges on marketable securities related to other-than-temporary declines in market value.

Our assets measured at fair value on a recurring basis are as follows (in thousands):

		Level 1				Level 2				Level 3				Total
March 31, 2013
Cash and money market fund		$	28,714			$	—			$	—			$	28,714
Corporate securities			—				25,677				—				25,677
		$	28,714			$	25,677			$	—			$	54,391
		Level 1				Level 2				Level 3				Total
December 31, 2012
Cash and money market fund		$	1,817			$	—			$	—			$	1,817
Corporate securities			—				54,437				—				54,437
		$	1,817			$	54,437			$	—			$	56,254

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- Definition

The entire disclosure of cash, cash equivalents, and debt and equity securities, including any unrealized or realized gain (loss).

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