Investments (Tables)

6 Months Ended

Jun. 30, 2014

Investments Debt And Equity Securities [Abstract]

Summary of Available-for-Sale Investments at Fair Value

The Company’s available-for-sale investments at fair value consisted of the following at June 30, 2014 and December 31, 2013:

	June 30, 2014
	Cost		Gross Unrealized (Losses)			Gross Unrealized Gains		Estimated Fair Value
	(In thousands)
Commercial paper due in one year or less	$	998	$	—		$	—	$	998
Corporate bonds due in one year or less		7,842		—			4		7,846
Total short-term investments		8,840		—			4		8,844
Total long-term investments		1,005		(1	)		—		1,004
Total investments	$	9,845	$	(1	)	$	4	$	9,848

	December 31, 2013
	Cost		Gross Unrealized (Losses)			Gross Unrealized Gains		Estimated Fair Value
	(In thousands)
Commercial paper due in one year or less	$	1,997	$	—		$	—	$	1,997
Corporate bonds due in one year or less		1,128		—			—		1,128
Total short-term investments		3,125		—			—		3,125
Corporate bonds due in one year or more		6,196		(7	)		—		6,189
Total long-term investments		6,196		(7	)		—		6,189
Total investments	$	9,321	$	(7	)	$	—	$	9,314