MARKETABLE SECURITIES

12 Months Ended

Dec. 31, 2014

MARKETABLE SECURITIES

MARKETABLE SECURITIES

(5) MARKETABLE SECURITIES

        A summary of marketable securities is shown below:

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
	(In thousands)
December 31, 2014
Marketable securities
U.S. government and municipal obligations
Maturing in one year or less	$	44,580	$	30	$	(6	)	$	44,604
Maturing after one year through three years		16,108		49		(1	)		16,156
Total U.S. government and municipal obligations	$	60,688	$	79	$	(7	)	$	60,760
Corporate debt securities
Maturing in one year or less	$	89,636		6	$	(37	)	$	89,605
Maturing after one year through three years		22,690		3		(35	)		22,658
Total corporate debt securities	$	112,326	$	9	$	(72	)	$	112,263
Total marketable securities	$	173,014	$	88	$	(79	)	$	173,023
December 31, 2013
Marketable securities
U.S. government and municipal obligations
Maturing in one year or less	$	55,531	$	27	$	(4	)	$	55,554
Maturing after one year through three years		18,234		56		(4	)		18,286
Total U.S. government and municipal obligations	$	73,765	$	83	$	(8	)	$	73,840
Corporate debt securities
Maturing in one year or less	$	38,973	$	9	$	(9	)	$	38,973
Maturing after one year through three years		20,761		12		(5	)		20,768
Total corporate debt securities	$	59,734	$	21	$	(14	)	$	59,741
Total marketable securities	$	133,499	$	104	$	(22	)	$	133,581

        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, 2014.