Marketable Securities (Tables)

6 Months Ended

Jun. 30, 2013

Investments, Debt and Equity Securities [Abstract]

Schedule of Available-for-sale Securities Reconciliation

(In thousands)			Amortized cost		Gross unrealized holding gains		Gross unrealized holding losses		Estimated fair value
December 31, 2012
	Available-for-sale securities:
		Corporate bonds and notes	$	—	$	—	$	—	$	—
		Municipal bonds	—		—		—		—
	Total available-for-sale securities		$	—	$	—	$	—	$	—

The amortized cost, gross unrealized holding gains, gross unrealized holding losses, and fair value for available-for-sale securities by major security type and class of security at June 30, 2013 and December 31, 2012 were as follows:

(In thousands)			Amortized cost		Gross unrealized holding gains		Gross unrealized holding losses			Estimated fair value
June 30, 2013
	Available-for-sale securities:
		Corporate bonds and notes	$	5,877	$	—	$	(59	)	$	5,818
		Municipal bonds	3,420		1		(29		)	3,392
	Total available-for-sale securities		$	9,297	$	1	$	(88	)	$	9,210

Available-for-sale Securities

Maturities of marketable securities classified as available-for-sale securities were as follows at June 30, 2013:

(In thousands)		Amortized cost		Estimated fair value
	Due within one year	$	337	$	337
	Due after one year through five years	8,528		8,449
	Due after five years through ten years	432		424
Total available-for-sale securities		$	9,297	$	9,210