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v3.20.1

Consolidated Statements of Comprehensive Loss Parentheticals - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019
Consolidated Statements of Operations [Abstract] |  |
Stock-based compensation expense associated with research and development expense | $ 2,176 | $ 1,768
Stock-based compensation expense associated with selling, general and administrative expense | $ 2,256 | $ 1,643

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- Definition Stock-based compensation expense included in research and development expense. + References No definition available. + Details
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- Definition Stock-based compensation expense associated with selling, general and administrative expense + References No definition available. + Details
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