Share-Based Compensation (Tables) |
6 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Jun. 30, 2018 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Stock Option Activity | A summary of Common Stock option activity is as follows:
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Fair Value Assumptions for Stock Options | The fair value was determined by the Black-Scholes option pricing model using the following weighted-average assumptions:
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Allocation of Share-based Compensation Expense | Share-based compensation related to all equity awards issued pursuant to the 2008 Plan and 2016 Plan and for estimated shares to be issued under the ESPP for the current purchase period is included in the condensed consolidated statements of operations and comprehensive loss as follows:
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