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Available-for-Sale Securities (Tables)

6 Months Ended

Jun. 30, 2012

Available-for-sale Securities [Abstract]

Summary of available-for-sale securities

The following is a summary of available-for-sale securities at June 30, 2012 (in thousands):


		June 30, 2012
		Carrying Value				Gross Unrealized Gain				Fair Value
Money market funds		$	9,214			$	0			$	9,214
United States government agency securities			0				0				0

Total available-for-sale securities		$	9,214			$	0			$	9,214

The following is a summary of available-for-sale securities at December 31, 2011 (in thousands):


		December 31, 2011
		Carrying Value				Gross Unrealized Gain				Fair Value
Money market funds		$	8,683			$	0			$	8,683
United States government agency securities			287				0				287

Total available-for-sale securities		$	8,970			$	0			$	8,970

Available-for-sale securities original contractual maturity

Available-for-sale securities at June 30, 2012, and December 31, 2011, consisted of the following by original contractual maturity (in thousands):


		June 30, 2012								December 31, 2011
		Carrying Value				Fair Value				Carrying Value				Fair Value
Due in one year or less		$	9,214			$	9,214			$	8,683			$	8,683
Due greater than three years and less than five years			0				0				287				287

Total available-for-sale securities		$	9,214			$	9,214			$	8,970			$	8,970