Marketable Securities, Available for Sale

9 Months Ended

Sep. 30, 2015

Investments Debt And Equity Securities [Abstract]

Marketable Securities, Available for Sale

3. MARKETABLE SECURITIES, AVAILABLE FOR SALE

The following is a summary of available-for-sale marketable securities (in thousands):

September 30, 2015	Amortized Cost		Unrealized Gain		Unrealized Loss		Market Value
U.S. treasuries	$	5,030	$	5	$	—	$	5,035
Government-sponsored enterprise securities		2,000		—		—		2,000
Corporate bonds		2,005		—		—		2,005
Certificates of deposit		10,824		—		—		10,824
	$	19,859	$	5	$	-	$	19,864

December 31, 2014	Amortized Cost		Unrealized Gain		Unrealized Loss		Market Value
U.S. treasuries	$	5,558	$	—	$	1	$	5,557
Government-sponsored enterprise securities		7,499		—		6		7,493
Corporate bonds		2,025		—		5		2,020
Certificates of deposit		8,429		—		—		8,429
	$	23,511	$	-	$	12	$	23,499

At September 30, 2015, $0.5 million of these securities were scheduled to mature outside of one year. The Company did not realize any gains or losses on sales of available-for-sale securities for the nine months ended September 30, 2015. As of September 30, 2015, none of the securities had been in a continuous material unrealized loss position longer than one year.