Cash and cash equivalents and marketable securities

12 Months Ended

Dec. 31, 2014

Cash and cash equivalents and marketable securities

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:

	December 31,
	2014		2013
Cash and cash equivalents:
Cash	$	3,247	$	3,655
Money market accounts		5,602		23,683
Total cash and cash equivalents	$	8,849	$	27,338
Short-term marketable securities:
Marketable securities	$	1,614	$	32,962
Total short-term marketable securities	$	1,614	$	32,962

        All contractual maturities of marketable securities were less than one year at December 31, 2014 and 2013. 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, 2014, 2013 and 2012, interest income was $114, $181 and $183, respectively, which is included in interest and other (expense) income, net in the accompanying consolidated statements of operations.