MARKETABLE SECURITIES

12 Months Ended

Dec. 31, 2012

MARKETABLE SECURITIES

MARKETABLE SECURITIES

(4) MARKETABLE SECURITIES

        A summary of marketable securities is shown below:

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
	(In thousands)
December 31, 2012
Marketable securities
U.S. government and municipal obligations
Maturing in one year or less	$	15,566	$	28	$	—	$	15,594
Maturing after one year through three years		19,797		99		1		19,895
Total U.S. government and municipal obligations	$	35,363	$	127	$	1	$	35,489
Corporate debt securities
Maturing in one year or less	$	17,353	$	23	$	4	$	17,372
Maturing after one year through three years		6,193		14		3		6,204
Total corporate debt securities	$	23,546	$	37	$	7	$	23,576
Total marketable securities	$	58,909	$	164	$	8	$	59,065

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
	(In thousands)
December 31, 2011
Marketable securities
U.S. government and municipal obligations
Maturing in one year or less	$	19,993	$	20	$	—	$	20,013
Maturing after one year through three years		10,808		122		6		10,924
Total U.S. government and municipal obligations	$	30,801	$	142	$	6	$	30,937
Corporate debt securities
Maturing in one year or less	$	5,817	$	3	$	4	$	5,816
Maturing after one year through three years		4,730		2		72		4,660
Total corporate debt securities	$	10,547	$	5	$	76	$	10,476
Total marketable securities	$	41,348	$	147	$	82	$	41,413

        The marketable securities held by the Company were high investment grade and there were no marketable securities that the Company considered to be other-than-temporarily impaired as of December 31, 2012.