Statements of Comprehensive Loss Parenthetical (Parenthetical) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
---|---|---|---|---|
Sep. 30, 2017 |
Sep. 30, 2016 |
Sep. 30, 2017 |
Sep. 30, 2016 |
|
Stock-based compensation expense associated with research and development expense | $ 1,345 | $ 1,051 | $ 3,698 | $ 3,013 |
Stock-based compensation expense associated with selling, general and administrative expense | $ 1,235 | $ 879 | $ 3,516 | $ 2,709 |