Cash and cash equivalents and marketable securities

6 Months Ended

Jun. 30, 2020

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:

	June 30,		December 31,
	2020		2019
Cash and cash equivalents:
Cash	$	15,206	$	6,061
Money market accounts		136,741		34,340
Total cash and cash equivalents	$	151,947	$	40,401
Short-term marketable securities-available-for-sale:
Marketable securities	$	20,100	$	40,214
Total short-term marketable securities	$	20,100	$	40,214

All contractual maturities of marketable securities were less than one year at June 30, 2020. Marketable securities consist primarily of debt securities which include commercial paper and debt instruments including notes issued by foreign or domestic industrial and financial corporations and governments which pay in U.S. dollars and carry a rating of A or better. For the three and six months ended June 30, 2020, interest income was $172 and $468, respectively. For the three and six months ended June 30, 2019, interest income was $540 and $1,254, respectively. Interest income is included in interest income and other expense, net in the accompanying condensed consolidated statements of operations.