Cash and cash equivalents (Tables)

3 Months Ended

Mar. 31, 2015

Cash and cash equivalents

Schedule of cash and cash equivalents

	March 31, 2015		December 31, 2014
Cash and cash equivalents:
Cash	$	8,390	$	3,247
Money market accounts	2,229		5,602
Total cash and cash equivalents	$	10,619	$	8,849
Short-term marketable securities:
Marketable securities	$	—	$	1,614
Total short-term marketable securities	$	—	$	1,614