Cash and Cash Equivalents and Short Term Investments (Tables)

12 Months Ended

Dec. 31, 2015

Cash And Cash Equivalents [Abstract]

Summary of Cash and Cash Equivalents

a. Cash and cash equivalents:

	December 31,
	2015		2014
Cash	$	75,421	$	47,614
Money market funds		44,002		-
U.S. treasury bills		-		9,999
Total cash and cash equivalents	$	119,423	$	57,613