Marketable Securities, Available for Sale

9 Months Ended

Sep. 30, 2016

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, 2016	Amortized Cost		Unrealized Gain		Unrealized Loss		Market Value
U.S. treasuries	$	18,783	$	2		—	$	18,785
Certificates of deposit		10,205		—		—		10,205
	$	28,988	$	2	$	—	$	28,990

December 31, 2015	Amortized Cost		Unrealized Gain		Unrealized Loss		Market Value
U.S. treasuries	$	7,027	$	—	$	8	$	7,019
Corporate bonds		1,000		—		—		1,000
Certificates of deposit		15,239		—		—		15,239
	$	23,266	$	—	$	8	$	23,258

At September 30, 2016, none 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, 2016. As of September 30, 2016, none of the securities had been in a continuous material unrealized loss position longer than one year.