Other current assets (Tables)

3 Months Ended

Mar. 31, 2016

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Schedule of other current assets

Other current assets consisted of the following (in thousands):

	March 31,		December 31,
	2016		2015
Prepaid expenses	$	1,530	$	2,287
Security deposits and other receivables	536		551
Interest receivable	166		237
	$	2,232	$	3,075