Marketable Securities

9 Months Ended

Sep. 30, 2017

Investments, Debt and Equity Securities [Abstract]

Marketable Securities

Marketable Securities

We classify our marketable securities as short-term based on their nature and availability for use in current operations. Our Short-term marketable securities have contractual maturities of up to two years, with less than one year remaining term as of September 30, 2017 and December 31, 2016.

The following table summarizes the composition of our Short-term marketable securities at fair value: 

(In thousands)	September 30, 2017		December 31, 2016
Short-term marketable securities:
Corporate and government bonds and notes, and commercial paper	$	7,982	$	10,230
Certificates of deposit	—		78
Total marketable securities	$	7,982	$	10,308