Annual report pursuant to Section 13 and 15(d)

Consolidated Statements of Comprehensive Loss (Parenthetical)

v3.3.1.900
Consolidated Statements of Comprehensive Loss (Parenthetical) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Statement of Comprehensive Income [Abstract]      
Tax benefit on unrealized gain (loss) of marketable securities $ 314 $ 0 $ 68