Available-for-sale Securities (Tables)

12 Months Ended

Dec. 31, 2012

The following is a summary of available-for-sale securities at December 31, 2012 (in thousands):


	December 31, 2012
	Carrying Value		Gross Unrealized Gain		Fair Value
Money market funds	$	10,268	$	0	$	10,268

Total available-for-sale securities	$	10,268	$	0	$	10,268

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 at December 31, 2012 and 2011 consisted of the following by original contractual maturity (in thousands):


	December 31, 2012				December 31, 2011
	Carrying Value		Fair Value		Carrying Value		Fair Value
Due in one year or less	$	10,268	$	10,268	$	8,683	$	8,683
Due greater than three years and less than five years		0		0		287		287

Total available-for-sale securities	$	10,268	$	10,268	$	8,970	$	8,970