Cash and cash equivalents and marketable securities |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2015 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Cash and cash equivalents | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Cash and cash equivalents and marketable securities |
4. Cash and cash equivalents and marketable securities Cash and cash equivalents, and marketable securities consisted of the following:
All contractual maturities of marketable securities were less than one year at December 31, 2014. These consist primarily of corporate securities which include commercial paper and corporate debt instruments including notes issued by foreign or domestic corporations which pay in U.S. dollars and carry a rating of A or better. For the years ended December 31, 2015, 2014 and 2013, interest income was $66, $114 and $181, respectively, which is included in interest and other (expense) income, net in the accompanying consolidated statements of operations.
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